WorldWideScience

Sample records for audiovisual materials

  1. Audiovisual Resources.

    Science.gov (United States)

    Beasley, Augie E.; And Others

    1986-01-01

    Six articles on the use of audiovisual materials in the school library media center cover how to develop an audiovisual production center; audiovisual forms; a checklist for effective video/16mm use in the classroom; slides in learning; hazards of videotaping in the library; and putting audiovisuals on the shelf. (EJS)

  2. Teleconferences and Audiovisual Materials in Earth Science Education

    Science.gov (United States)

    Cortina, L. M.

    2007-05-01

    Unidad de Educacion Continua y a Distancia, Universidad Nacional Autonoma de Mexico, Coyoaca 04510 Mexico, MEXICO As stated in the special session description, 21st century undergraduate education has access to resources/experiences that go beyond university classrooms. However in some cases, resources may go largely unused and a number of factors may be cited such as logistic problems, restricted internet and telecommunication service access, miss-information, etc. We present and comment on our efforts and experiences at the National University of Mexico in a new unit dedicated to teleconferences and audio-visual materials. The unit forms part of the geosciences institutes, located in the central UNAM campus and campuses in other States. The use of teleconference in formal graduate and undergraduate education allows teachers and lecturers to distribute course material as in classrooms. Course by teleconference requires learning and student and teacher effort without physical contact, but they have access to multimedia available to support their exhibition. Well selected multimedia material allows the students to identify and recognize digital information to aid understanding natural phenomena integral to Earth Sciences. Cooperation with international partnerships providing access to new materials and experiences and to field practices will greatly add to our efforts. We will present specific examples of the experiences that we have at the Earth Sciences Postgraduate Program of UNAM with the use of technology in the education in geosciences.

  3. AUDIOVISUAL MATERIALS, THEIR NATURE AND USE. FOURTH EDITION. EXPLORATION SERIES IN EDUCATION.

    Science.gov (United States)

    SCHULLER, CHARLES FRANCIS; WITTICH, WALTER ARNO

    THIS BOOK IS DESIGNED TO ACQUAINT PRESENT AND PROSPECTIVE TEACHERS WITH AUDIOVISUAL CLASSROOM TEACHING MATERIALS. DETAILS OF EQUIPMENT SELECTION AND UTILIZATION ARE GIVEN. SPECIFIC CHAPTERS ARE DEVOTED TO THE CHALKBOARD, FLAT PICTURES, GRAPHICS, 3-DIMENSIONAL TEACHING MATERIALS, STUDY DISPLAY, COMMUNITY STUDY, MAPS AND GLOBES, AUDIOLEARNING, TAPE…

  4. Nutrition Education Materials and Audiovisuals for Grades Preschool through 6. Special Reference Briefs Series.

    Science.gov (United States)

    Evans, Shirley King, Comp.

    This bibliography was prepared for educators interested in nutrition education materials, audiovisuals, and resources for classroom use. Items listed cover a range of topics including general nutrition, food preparation, food science, and dietary management. Teaching materials listed include food models, games, kits, videocassettes, and lesson…

  5. Audiovisual Material as Educational Innovation Strategy to Reduce Anxiety Response in Students of Human Anatomy

    Science.gov (United States)

    Casado, Maria Isabel; Castano, Gloria; Arraez-Aybar, Luis Alfonso

    2012-01-01

    This study presents the design, effect and utility of using audiovisual material containing real images of dissected human cadavers as an innovative educational strategy (IES) in the teaching of Human Anatomy. The goal is to familiarize students with the practice of dissection and to transmit the importance and necessity of this discipline, while…

  6. Catalogo de peliculas educativas y otros materiales audiovisuales (Catalogue of Educational Films and other Audiovisual Materials).

    Science.gov (United States)

    Encyclopaedia Britannica, Inc., Chicago, IL.

    This catalogue of educational films and other audiovisual materials consists predominantly of films in Spanish and English which are intended for use in elementary and secondary schools. A wide variety of topics including films for social studies, language arts, humanities, physical and natural sciences, safety and health, agriculture, physical…

  7. Retrospective Conversion Cataloging of Audiovisual Materials at Penn State University's Education Library.

    Science.gov (United States)

    Freeborn, Robert B.

    2000-01-01

    Describes the retrospective conversion of audiovisual materials at Penn State University's Education Library when it merged with the main collection. Topics include improved access; administrative support; support from the media center staff; collection organization; collection content; bibliographic access; goals; and staffing and communication…

  8. The Use of Video as an Audio-visual Material in Foreign Language Teaching Classroom

    Science.gov (United States)

    Cakir, Ismail

    2006-01-01

    In recent years, a great tendency towards the use of technology and its integration into the curriculum has gained a great importance. Particularly, the use of video as an audio-visual material in foreign language teaching classrooms has grown rapidly because of the increasing emphasis on communicative techniques, and it is obvious that the use of…

  9. Repositorio on-line de material audiovisual de metodología de investigación feminista

    OpenAIRE

    Prado, Lena

    2014-01-01

    En este texto se ofrece una recopilación del material audiovisual disponible en el repositorio del Seminario Interdisciplinar de Metodología de Investigación Feminista SIMReF (http://www.simref.net).

  10. Audiovisual Review

    Science.gov (United States)

    Physiology Teacher, 1976

    1976-01-01

    Lists and reviews recent audiovisual materials in areas of medical, dental, nursing and allied health, and veterinary medicine; undergraduate, and high school studies. Each is classified as to level, type of instruction, usefulness, and source of availability. Topics include respiration, renal physiology, muscle mechanics, anatomy, evolution,…

  11. An Audio-Visual Resource Notebook for Adult Consumer Education. An Annotated Bibliography of Selected Audio-Visual Aids for Adult Consumer Education, with Special Emphasis on Materials for Elderly, Low-Income and Handicapped Consumers.

    Science.gov (United States)

    Virginia State Dept. of Agriculture and Consumer Services, Richmond, VA.

    This document is an annotated bibliography of audio-visual aids in the field of consumer education, intended especially for use among low-income, elderly, and handicapped consumers. It was developed to aid consumer education program planners in finding audio-visual resources to enhance their presentations. Materials listed include 293 resources…

  12. Audio-Visual Aids: Historians in Blunderland.

    Science.gov (United States)

    Decarie, Graeme

    1988-01-01

    A history professor relates his experiences producing and using audio-visual material and warns teachers not to rely on audio-visual aids for classroom presentations. Includes examples of popular audio-visual aids on Canada that communicate unintended, inaccurate, or unclear ideas. Urges teachers to exercise caution in the selection and use of…

  13. DEVELOPMENT OF SKILLS IN BUSINESS COMMUNICATION BASED ON THE AUTHENTIC AUDIOVISUAL MATERIAL WITHIN THE UNIVERSITY COURSE OF «RUSSIAN AS A FOREIGN LANGUAGE»

    OpenAIRE

    N. N. Romanova; AMELINA I.O.

    2015-01-01

    The article reveals the importance of business communication skills as an important element of professional communicative competence and its development for university students future specialists. The role of authentic audiovisual materials in teaching the named aspect is highlighted. The article describes the methodology and analyses the results of an experimental implementation of a business communication course in teaching students of economic and noneconomic specialties.

  14. 音像资料联合编目删探讨%Discussion on Cooperative Cataloging Rules of Audio-Visual Materials

    Institute of Scientific and Technical Information of China (English)

    胡大琴

    2012-01-01

    Through comparative researches on the cataloging data of audiovisual materials in several representative member libraries of China Regional Libraries Network (CRLNet), we find that the cataloging work of audiovisual materials is independent, and the cataloging data is very different among domestic libraries. The key reason is without uniform cataloging rules. For unifying cataloging rules of audiovisual materials of CRLNet, Shenzhen Library asks for views of member libraries, combines with practices of audiovisual materials, and gets a common view that the cataloging work of audiovisual materials could refer to the standard about some fields of electronic resources, but in principal, it should follow cataloging standards of audio and visual materials.%通过比较研究地方版文献联合采编协作网(CRLNet)几个有代表性成员馆的音像资料编目数据发现,目前国内图书馆的音像资料编目存在各自为政、编目数据大相径庭的现象,其主要原因是没有统一的编目规则。为统一CRLNet音像资料的著录规则,深圳图书馆征求各成员馆的意见并结合音像资料工作实践提出,音像资料的著录可以参见著录电子资源的某些字段,但是主体仍应该遵循录音、录像资料的编目规则.

  15. Historia audiovisual para una sociedad audiovisual

    Directory of Open Access Journals (Sweden)

    Julio Montero Díaz

    2013-04-01

    Full Text Available This article analyzes the possibilities of presenting an audiovisual history in a society in which audiovisual media has progressively gained greater protagonism. We analyze specific cases of films and historical documentaries and we assess the difficulties faced by historians to understand the keys of audiovisual language and by filmmakers to understand and incorporate history into their productions. We conclude that it would not be possible to disseminate history in the western world without audiovisual resources circulated through various types of screens (cinema, television, computer, mobile phone, video games.

  16. Search in audiovisual broadcast archives

    NARCIS (Netherlands)

    B. Huurnink

    2010-01-01

    Documentary makers, journalists, news editors, and other media professionals routinely require previously recorded audiovisual material for new productions. For example, a news editor might wish to reuse footage from overseas services for the evening news, or a documentary maker describing the histo

  17. Digital audiovisual archives

    CERN Document Server

    Stockinger, Peter

    2013-01-01

    Today, huge quantities of digital audiovisual resources are already available - everywhere and at any time - through Web portals, online archives and libraries, and video blogs. One central question with respect to this huge amount of audiovisual data is how they can be used in specific (social, pedagogical, etc.) contexts and what are their potential interest for target groups (communities, professionals, students, researchers, etc.).This book examines the question of the (creative) exploitation of digital audiovisual archives from a theoretical, methodological, technical and practical

  18. Evaluating audio-visual and computer programs for classroom use.

    Science.gov (United States)

    Van Ort, S

    1989-01-01

    Appropriate faculty decisions regarding adoption of audiovisual and computer programs are critical to the classroom use of these learning materials. The author describes the decision-making process in one college of nursing and the adaptation of an evaluation tool for use by faculty in reviewing audiovisual and computer programs. PMID:2467237

  19. 谈科普类视听教材的设计与制作%Design and making of popular science audiovisual materials

    Institute of Scientific and Technical Information of China (English)

    初万江; 金萍; 耿成燕; 张亭亭; 李天立

    2012-01-01

    By relating to the making of the television material Rural Water-Drinking Hygiene, this paper discusses that the development and making of popular science audiovisual materials should take the audience's characteristics into consideration, follow the principles of popularization of professional knowledge, diversified material photography and collection, shooting at the original scenes, closeness of editing elements to life. Attention should also be paid to making good communication and coordination with the local administrative departments and handling well the relationship between publicity and privacy.%结合《农村饮水卫生》电视教材的制作,介绍了科普类视听教材在开发、制作过程中要依据受众广泛的特点,遵循专业知识通俗化、素材摄制与收集多样化、实景拍摄原生态化、编辑要素生活化的原则,并注重与外景地主管部门的沟通协调,同时处理好宣传和隐私的关系.

  20. Utilizing New Audiovisual Resources

    Science.gov (United States)

    Miller, Glen

    1975-01-01

    The University of Arizona's Agriculture Department has found that video cassette systems and 8 mm films are excellent audiovisual aids to classroom instruction at the high school level in small gasoline engines. Each system is capable of improving the instructional process for motor skill development. (MW)

  1. Publicación de materiales audiovisuales a través de un servidor de video-streaming Publication of audio-visual materials through a streaming video server

    OpenAIRE

    Acevedo Clavijo Edwin Jovanny; Parra Toloza Dina Julieth; Winlker Hernadez Walter

    2010-01-01

    Esta propuesta tiene como objetivo estudiar varias alternativas de servidores Streaming para determinar la mejor herramienta para el desarrollo de la publicación de material audiovisual educativo. Se evaluaron las plataformas más utilizadas teniendo en cuenta sus características y beneficios que tiene cada servidor entre las los cuales están: Hélix Universal Server, Windows Media Server de Microsoft, Peer Cast y Darwin Server. implementando un servidor con mayores capacidades y beneficios par...

  2. Effect of context, rebinding and noise, on audiovisual speech fusion

    OpenAIRE

    Attigodu, Ganesh; Berthommier, Frédéric; Nahorna, Olha; Schwartz, Jean-Luc

    2013-01-01

    In a previous set of experiments we showed that audio-visual fusion during the McGurk effect may be modulated by context. A short context (2 to 4 syllables) composed of incoherent auditory and visual material significantly decreases the McGurk effect. We interpreted this as showing the existence of an audiovisual "binding" stage controlling the fusion process, and we also showed the existence of a "rebinding" process when an incoherent material is followed by a short coherent material. In thi...

  3. Audio-Visual Education in Primary Schools: A Curriculum Project in the Netherlands.

    Science.gov (United States)

    Ketzer, Jan W.

    1988-01-01

    A media education curriculum developed in the Netherlands is designed to increase the media literacy of children aged 4-12 years by helping them to acquire information and insights into the meaning of mass media; teaching them to produce and use audiovisual materials as a method of expression; and using audiovisual equipment in the classroom. (LRW)

  4. 鼻咽癌放疗患者康复视听教材的制作与应用%Development and application of audio-visual materials in radiotherapy patients with nasopharyngeal carcinoma

    Institute of Scientific and Technical Information of China (English)

    潘海卿; 席淑新; 吴沛霞; 叶向红; 王苏丹

    2015-01-01

    Objective To develop audio-visual materials and confirm their effect in patients with nasopharyngeal carcinoma receiving radiotherapy. Methods Audio-visual development were produced based on relevant literature, professional demonstration, and digital video. A total of 84 patients with nasopharyngeal carcinoma were selected from Jinhua Hospital of Zhejiang University and divided into control group (n=42) and intervention group (n=42) according to admission time. The patients of control group received usual one-to-one healthcare education. The patients of intervention group received audio-visual materials systematically for imitation excise with professional guidance. The compliance of rehabilitation exercise and patients′ satisfaction on nursing service were compared between two groups. Results The scores of compliance in the intervention group at 1 month after discharge and at 3 months after discharge ware higher than those of the control group (P<0. 05). There was significant difference between the intervention group and the control group in patients′satisfaction (P<0. 01). Conclusions Self-made audio-visual materials are intuitionistic, iconic, straightaway, imitable, receivable, and they can improve patients′ compliance on rehabilitation exercise and satisfaction on nursing service effectively.%目的:探讨康复视听教材的制作及其在鼻咽癌放疗患者中的应用效果。方法参考相关文献编写康复方案,经专人演示康复锻炼的动作和数码录像制作视听教材DV。选择在浙江大学金华医院放疗科行根治性放疗的84例鼻咽癌患者,按住院时间先后分为对照组和干预组各42例。对照组采用传统一对一口头健康宣教方法,干预组采用康复锻炼视听教材光盘的系统播放并指导患者模仿锻炼方法进行健康宣教,比较两种健康教育方法实施后两组患者康复锻炼依从性情况和患者对护理服务满意度。结果干预组出院后1,3个月依

  5. Blacklist Established in Chinese Audiovisual Market

    Institute of Scientific and Technical Information of China (English)

    2002-01-01

    The Chinese audiovisual market is to impose a ban on audiovisual product dealers whose licenses have been revoked for violatingthe law. This ban will prohibit them from dealing in audiovisual products for ten years. Their names are to be included on a blacklist made known to the public.

  6. Rapid recalibration to audiovisual asynchrony.

    Science.gov (United States)

    Van der Burg, Erik; Alais, David; Cass, John

    2013-09-11

    To combine information from different sensory modalities, the brain must deal with considerable temporal uncertainty. In natural environments, an external event may produce simultaneous auditory and visual signals yet they will invariably activate the brain asynchronously due to different propagation speeds for light and sound, and different neural response latencies once the signals reach the receptors. One strategy the brain uses to deal with audiovisual timing variation is to adapt to a prevailing asynchrony to help realign the signals. Here, using psychophysical methods in human subjects, we investigate audiovisual recalibration and show that it takes place extremely rapidly without explicit periods of adaptation. Our results demonstrate that exposure to a single, brief asynchrony is sufficient to produce strong recalibration effects. Recalibration occurs regardless of whether the preceding trial was perceived as synchronous, and regardless of whether a response was required. We propose that this rapid recalibration is a fast-acting sensory effect, rather than a higher-level cognitive process. An account in terms of response bias is unlikely due to a strong asymmetry whereby stimuli with vision leading produce bigger recalibrations than audition leading. A fast-acting recalibration mechanism provides a means for overcoming inevitable audiovisual timing variation and serves to rapidly realign signals at onset to maximize the perceptual benefits of audiovisual integration. PMID:24027264

  7. Publicación de materiales audiovisuales a través de un servidor de video-streaming Publication of audio-visual materials through a streaming video server

    Directory of Open Access Journals (Sweden)

    Acevedo Clavijo Edwin Jovanny

    2010-07-01

    Full Text Available Esta propuesta tiene como objetivo estudiar varias alternativas de servidores Streaming para determinar la mejor herramienta para el desarrollo de la publicación de material audiovisual educativo. Se evaluaron las plataformas más utilizadas teniendo en cuenta sus características y beneficios que tiene cada servidor entre las los cuales están: Hélix Universal Server, Windows Media Server de Microsoft, Peer Cast y Darwin Server. implementando un servidor con mayores capacidades y beneficios para la publicación de videos con fines académicos a través de la intranet de la Universidad Cooperativa de Colombia seccional Barrancabermeja This proposal has as an principal objective to study different alternatives for streaming servers to determine the best tool in the project’s development. Platforms most used were evaluated features and benefits in each served such as: Helix Universal Server, Microsoft Windows Media Server, Peer Cast and Darwin Server. Implementing a server with more capabilities and benefits for the publication of videos for academic purposes through the intranet of the Cooperative University of Colombia Barrancabermeja’s sectional

  8. Audiovisual Instruments in Ethnographic Research

    OpenAIRE

    Carvalho, Clara

    2011-01-01

    In 1973, the most renowned researchers in Visual Anthropology met at the ninth International Congress of Anthropology and Sociology to discuss the role of film and photography in ethnographic research and to systematize the almost century-old experiences of bringing together description, ethnography, photography and film. Opening the meeting, Dean Margaret Mead enthusiastically defended the use of audiovisual instruments in research. Considering that Anthropology explicitly ...

  9. Bilingualism affects audiovisual phoneme identification

    OpenAIRE

    Burfin, Sabine; Pascalis, Olivier; Ruiz Tada, Elisa; Costa, Albert; Savariaux, Christophe; Kandel, Sonia

    2014-01-01

    We all go through a process of perceptual narrowing for phoneme identification. As we become experts in the languages we hear in our environment we lose the ability to identify phonemes that do not exist in our native phonological inventory. This research examined how linguistic experience—i.e., the exposure to a double phonological code during childhood—affects the visual processes involved in non-native phoneme identification in audiovisual speech perception. We conducted a phoneme identifi...

  10. Hysteresis in Audiovisual Synchrony Perception

    OpenAIRE

    Martin, Jean-Remy; Kösem, Anne; van Wassenhove, Virginie

    2015-01-01

    The effect of stimulation history on the perception of a current event can yield two opposite effects, namely: adaptation or hysteresis. The perception of the current event thus goes in the opposite or in the same direction as prior stimulation, respectively. In audiovisual (AV) synchrony perception, adaptation effects have primarily been reported. Here, we tested if perceptual hysteresis could also be observed over adaptation in AV timing perception by varying different experimental conditio...

  11. THE POTENTIAL OF AUDIOVISUAL TECHNOLOGY APPLIED TO EDUCATION OF GEOGRAPHY

    Directory of Open Access Journals (Sweden)

    Suâmi Abdalla-Santos

    2016-01-01

    Full Text Available This article makes a brief analysis on the benefits that can be extracted using audiovisual technology applied to education of Geography. Currently, we have many options of devices that have recording function of audio and video at affordable prices. In this context it becomes possible to the geographer, researcher or teacher, to use these tools to capture material that can be used to the teaching of the discipline. RESUMO: This article makes a brief analysis on the benefits that can be extracted using audiovisual technology applied to education of Geography. Currently, we have many options of devices that have recording function of audio and video at affordable prices. In this context it becomes possible to the geographer, researcher or teacher, to use these tools to capture material that can be used to the teaching of the discipline.

  12. Audiovisual Styling and the Film Experience

    DEFF Research Database (Denmark)

    Langkjær, Birger

    2015-01-01

    Approaches to music and audiovisual meaning in film appear to be very different in nature and scope when considered from the point of view of experimental psychology or humanistic studies. Nevertheless, this article argues that experimental studies square with ideas of audiovisual perception and ...

  13. Audio-Visual Aids in Universities

    Science.gov (United States)

    Douglas, Jackie

    1970-01-01

    A report on the proceedings and ideas expressed at a one day seminar on "Audio-Visual Equipment--Its Uses and Applications for Teaching and Research in Universities." The seminar was organized by England's National Committee for Audio-Visual Aids in Education in conjunction with the British Universities Film Council. (LS)

  14. Cinco discursos da digitalidade audiovisual

    Directory of Open Access Journals (Sweden)

    Gerbase, Carlos

    2001-01-01

    Full Text Available Michel Foucault ensina que toda fala sistemática - inclusive aquela que se afirma “neutra” ou “uma desinteressada visão objetiva do que acontece” - é, na verdade, mecanismo de articulação do saber e, na seqüência, de formação de poder. O aparecimento de novas tecnologias, especialmente as digitais, no campo da produção audiovisual, provoca uma avalanche de declarações de cineastas, ensaios de acadêmicos e previsões de demiurgos da mídia.

  15. Audio-visual gender recognition

    Science.gov (United States)

    Liu, Ming; Xu, Xun; Huang, Thomas S.

    2007-11-01

    Combining different modalities for pattern recognition task is a very promising field. Basically, human always fuse information from different modalities to recognize object and perform inference, etc. Audio-Visual gender recognition is one of the most common task in human social communication. Human can identify the gender by facial appearance, by speech and also by body gait. Indeed, human gender recognition is a multi-modal data acquisition and processing procedure. However, computational multimodal gender recognition has not been extensively investigated in the literature. In this paper, speech and facial image are fused to perform a mutli-modal gender recognition for exploring the improvement of combining different modalities.

  16. Audiovisual English-Arabic Translation: De Beaugrande's Perspective

    Directory of Open Access Journals (Sweden)

    Alaa Eddin Hussain

    2016-05-01

    Full Text Available This paper attempts to demonstrate the significance of the seven standards of textuality with special application to audiovisual English Arabic translation.  Ample and thoroughly analysed examples have been provided to help in audiovisual English-Arabic translation decision-making. A text is meaningful if and only if it carries meaning and knowledge to its audience, and is optimally activatable, recoverable and accessible.  The same is equally applicable to audiovisual translation (AVT. The latter should also carry knowledge which can be easily accessed by the TL audience, and be processed with least energy and time, i.e. achieving the utmost level of efficiency. Communication occurs only when that text is coherent, with continuity of senses and concepts that are appropriately linked. Coherence of a text will be achieved when all aspects of cohesive devices are well accounted for pragmatically.  This combined with a good amount of psycholinguistic element will provide a text with optimal communicative value. Non-text is certainly devoid of such components and ultimately non-communicative. Communicative knowledge can be classified into three categories: determinate knowledge, typical knowledge and accidental knowledge. To create dramatic suspense and the element of surprise, the text in AV environment, as in any dialogue, often carries accidental knowledge.  This unusual knowledge aims to make AV material interesting in the eyes of its audience. That cognitive environment is enhanced by an adequate employment of material (picture and sound, and helps to recover sense in the text. Hence, the premise of this paper is the application of certain aspects of these standards to AV texts taken from various recent feature films and documentaries, in order to facilitate the translating process and produce a final appropriate product. Keywords: Arabic audiovisual translation, coherence, cohesion, textuality

  17. Effects of audio-visual aids on foreign language test anxiety, reading and listening comprehension, and retention in EFL learners.

    Science.gov (United States)

    Lee, Shu-Ping; Lee, Shin-Da; Liao, Yuan-Lin; Wang, An-Chi

    2015-04-01

    This study examined the effects of audio-visual aids on anxiety, comprehension test scores, and retention in reading and listening to short stories in English as a Foreign Language (EFL) classrooms. Reading and listening tests, general and test anxiety, and retention were measured in English-major college students in an experimental group with audio-visual aids (n=83) and a control group without audio-visual aids (n=94) with similar general English proficiency. Lower reading test anxiety, unchanged reading comprehension scores, and better reading short-term and long-term retention after four weeks were evident in the audiovisual group relative to the control group. In addition, lower listening test anxiety, higher listening comprehension scores, and unchanged short-term and long-term retention were found in the audiovisual group relative to the control group after the intervention. Audio-visual aids may help to reduce EFL learners' listening test anxiety and enhance their listening comprehension scores without facilitating retention of such materials. Although audio-visual aids did not increase reading comprehension scores, they helped reduce EFL learners' reading test anxiety and facilitated retention of reading materials. PMID:25914939

  18. Audiovisual quality assessment and prediction for videotelephony

    CERN Document Server

    Belmudez, Benjamin

    2015-01-01

    The work presented in this book focuses on modeling audiovisual quality as perceived by the users of IP-based solutions for video communication like videotelephony. It also extends the current framework for the parametric prediction of audiovisual call quality. The book addresses several aspects related to the quality perception of entire video calls, namely, the quality estimation of the single audio and video modalities in an interactive context, the audiovisual quality integration of these modalities and the temporal pooling of short sample-based quality scores to account for the perceptual quality impact of time-varying degradations.

  19. Categorization of Natural Dynamic Audiovisual Scenes

    OpenAIRE

    Rummukainen, Olli; Radun, Jenni; Virtanen, Toni; Pulkki, Ville

    2014-01-01

    This work analyzed the perceptual attributes of natural dynamic audiovisual scenes. We presented thirty participants with 19 natural scenes in a similarity categorization task, followed by a semi-structured interview. The scenes were reproduced with an immersive audiovisual display. Natural scene perception has been studied mainly with unimodal settings, which have identified motion as one of the most salient attributes related to visual scenes, and sound intensity along with pitch trajectori...

  20. Rapid, generalized adaptation to asynchronous audiovisual speech

    OpenAIRE

    Van der Burg, Erik; Goodbourn, Patrick T.

    2015-01-01

    The brain is adaptive. The speed of propagation through air, and of low-level sensory processing, differs markedly between auditory and visual stimuli; yet the brain can adapt to compensate for the resulting cross-modal delays. Studies investigating temporal recalibration to audiovisual speech have used prolonged adaptation procedures, suggesting that adaptation is sluggish. Here, we show that adaptation to asynchronous audiovisual speech occurs rapidly. Participants viewed a brief clip of an...

  1. Neurocognitive mechanisms of audiovisual speech perception

    OpenAIRE

    Ojanen, Ville

    2005-01-01

    Face-to-face communication involves both hearing and seeing speech. Heard and seen speech inputs interact during audiovisual speech perception. Specifically, seeing the speaker's mouth and lip movements improves identification of acoustic speech stimuli, especially in noisy conditions. In addition, visual speech may even change the auditory percept. This occurs when mismatching auditory speech is dubbed onto visual articulation. Research on the brain mechanisms of audiovisual perception a...

  2. Comparison between audio-only and audiovisual biofeedback for regulating patients' respiration during four-dimensional radiotherapy

    OpenAIRE

    Yu, Jesang; Choi, Ji Hoon; Ma, Sun Young; Jeung, Tae Sig; Lim, Sangwook

    2015-01-01

    Purpose To compare audio-only biofeedback to conventional audiovisual biofeedback for regulating patients' respiration during four-dimensional radiotherapy, limiting damage to healthy surrounding tissues caused by organ movement. Materials and Methods Six healthy volunteers were assisted by audiovisual or audio-only biofeedback systems to regulate their respirations. Volunteers breathed through a mask developed for this study by following computer-generated guiding curves displayed on a scree...

  3. Positive Emotion Facilitates Audiovisual Binding.

    Science.gov (United States)

    Kitamura, Miho S; Watanabe, Katsumi; Kitagawa, Norimichi

    2015-01-01

    It has been shown that positive emotions can facilitate integrative and associative information processing in cognitive functions. The present study examined whether emotions in observers can also enhance perceptual integrative processes. We tested 125 participants in total for revealing the effects of emotional states and traits in observers on the multisensory binding between auditory and visual signals. Participants in Experiment 1 observed two identical visual disks moving toward each other, coinciding, and moving away, presented with a brief sound. We found that for participants with lower depressive tendency, induced happy moods increased the width of the temporal binding window of the sound-induced bounce percept in the stream/bounce display, while no effect was found for the participants with higher depressive tendency. In contrast, no effect of mood was observed for a simple audiovisual simultaneity discrimination task in Experiment 2. These results provide the first empirical evidence of a dependency of multisensory binding upon emotional states and traits, revealing that positive emotions can facilitate the multisensory binding processes at a perceptual level. PMID:26834585

  4. Sustainable Archiving and Storage Management of Audiovisual Digital Assets

    OpenAIRE

    Addis, Matthew; Norlund, Charlotte; Beales, Richard; Lowe, Richard; Middleton, Lee; Zlatev, Zlatko

    2009-01-01

    With the advent of end-to-end tapeless production and distribution, the whole concept of what it means to archive audiovisual content is being challenged. The traditional role of the archive as a repository for material after broadcast is changing because of digital file-based technologies and high speed networking. Rather than being at the end of the production chain, the archive is becoming an integral part of the production process and as a result is being absorbed into wider digital stora...

  5. Sistemas de Registro Audiovisual del Patrimonio Urbano (SRAPU)

    OpenAIRE

    Conles, Liliana Eva

    2006-01-01

    El Sistema SRAPU es un método de relevamiento fílmico diseñado para configurar una base de datos interactiva del paisaje urbano. Sobre esta base se persigue la formulación de criterios ordenados en términos de: flexibilidad y eficacia económica, eficiencia en el manejo de datos, democratización de la información. El SRAPU se plantea como un registro audiovisual del patrimonio material e intangible en su singularidad y como conjunto histórico y natural. En su concepción involucra los pro...

  6. Selective Audiovisual Semantic Integration Enabled by Feature-Selective Attention

    OpenAIRE

    Yuanqing Li; Jinyi Long; Biao Huang; Tianyou Yu; Wei Wu; Peijun Li; Fang Fang; Pei Sun

    2016-01-01

    An audiovisual object may contain multiple semantic features, such as the gender and emotional features of the speaker. Feature-selective attention and audiovisual semantic integration are two brain functions involved in the recognition of audiovisual objects. Humans often selectively attend to one or several features while ignoring the other features of an audiovisual object. Meanwhile, the human brain integrates semantic information from the visual and auditory modalities. However, how thes...

  7. Eyewitnesses of History: Italian Amateur Cinema as Cultural Heritage and Source for Audiovisual and Media Production

    NARCIS (Netherlands)

    Simoni, Paolo

    2015-01-01

    abstractThe role of amateur cinema as archival material in Italian media productions has only recently been discovered. Italy, as opposed to other European countries, lacked a local, regional and national policy for the collection and preservation of private audiovisual documents, which led, as a re

  8. Audio-visual biofeedback for respiratory-gated radiotherapy: Impact of audio instruction and audio-visual biofeedback on respiratory-gated radiotherapy

    International Nuclear Information System (INIS)

    Purpose: Respiratory gating is a commercially available technology for reducing the deleterious effects of motion during imaging and treatment. The efficacy of gating is dependent on the reproducibility within and between respiratory cycles during imaging and treatment. The aim of this study was to determine whether audio-visual biofeedback can improve respiratory reproducibility by decreasing residual motion and therefore increasing the accuracy of gated radiotherapy. Methods and Materials: A total of 331 respiratory traces were collected from 24 lung cancer patients. The protocol consisted of five breathing training sessions spaced about a week apart. Within each session the patients initially breathed without any instruction (free breathing), with audio instructions and with audio-visual biofeedback. Residual motion was quantified by the standard deviation of the respiratory signal within the gating window. Results: Audio-visual biofeedback significantly reduced residual motion compared with free breathing and audio instruction. Displacement-based gating has lower residual motion than phase-based gating. Little reduction in residual motion was found for duty cycles less than 30%; for duty cycles above 50% there was a sharp increase in residual motion. Conclusions: The efficiency and reproducibility of gating can be improved by: incorporating audio-visual biofeedback, using a 30-50% duty cycle, gating during exhalation, and using displacement-based gating

  9. El tratamiento documental del mensaje audiovisual Documentary treatment of the audio-visual message

    Directory of Open Access Journals (Sweden)

    Blanca Rodríguez Bravo

    2005-06-01

    Full Text Available Se analizan las peculiaridades del documento audiovisual y el tratamiento documental que sufre en las emisoras de televisión. Observando a las particularidades de la imagen que condicionan su análisis y recuperación, se establecen las etapas y procedimientos para representar el mensaje audiovisual con vistas a su reutilización. Por último se realizan algunas consideraciones acerca del procesamiento automático del video y de los cambios introducidos por la televisión digital.Peculiarities of the audio-visual document and the treatment it undergoes in TV broadcasting stations are analyzed. The particular features of images condition their analysis and recovery; this paper establishes stages and proceedings for the representation of audio-visual messages with a view to their re-usability Also, some considerations about the automatic processing of the video and the changes introduced by digital TV are made.

  10. Longevity and Depreciation of Audiovisual Equipment.

    Science.gov (United States)

    Post, Richard

    1987-01-01

    Describes results of survey of media service directors at public universities in Ohio to determine the expected longevity of audiovisual equipment. Use of the Delphi technique for estimates is explained, results are compared with an earlier survey done in 1977, and use of spreadsheet software to calculate depreciation is discussed. (LRW)

  11. Rapid, generalized adaptation to asynchronous audiovisual speech.

    Science.gov (United States)

    Van der Burg, Erik; Goodbourn, Patrick T

    2015-04-01

    The brain is adaptive. The speed of propagation through air, and of low-level sensory processing, differs markedly between auditory and visual stimuli; yet the brain can adapt to compensate for the resulting cross-modal delays. Studies investigating temporal recalibration to audiovisual speech have used prolonged adaptation procedures, suggesting that adaptation is sluggish. Here, we show that adaptation to asynchronous audiovisual speech occurs rapidly. Participants viewed a brief clip of an actor pronouncing a single syllable. The voice was either advanced or delayed relative to the corresponding lip movements, and participants were asked to make a synchrony judgement. Although we did not use an explicit adaptation procedure, we demonstrate rapid recalibration based on a single audiovisual event. We find that the point of subjective simultaneity on each trial is highly contingent upon the modality order of the preceding trial. We find compelling evidence that rapid recalibration generalizes across different stimuli, and different actors. Finally, we demonstrate that rapid recalibration occurs even when auditory and visual events clearly belong to different actors. These results suggest that rapid temporal recalibration to audiovisual speech is primarily mediated by basic temporal factors, rather than higher-order factors such as perceived simultaneity and source identity. PMID:25716790

  12. Audiovisual biofeedback improves motion prediction accuracy

    OpenAIRE

    Pollock, Sean; Lee, Danny; Keall, Paul; Kim, Taeho

    2013-01-01

    Purpose: The accuracy of motion prediction, utilized to overcome the system latency of motion management radiotherapy systems, is hampered by irregularities present in the patients’ respiratory pattern. Audiovisual (AV) biofeedback has been shown to reduce respiratory irregularities. The aim of this study was to test the hypothesis that AV biofeedback improves the accuracy of motion prediction.

  13. Active Methodology in the Audiovisual Communication Degree

    Science.gov (United States)

    Gimenez-Lopez, J. L.; Royo, T. Magal; Laborda, Jesus Garcia; Dunai, Larisa

    2010-01-01

    The paper describes the adaptation methods of the active methodologies of the new European higher education area in the new Audiovisual Communication degree under the perspective of subjects related to the area of the interactive communication in Europe. The proposed active methodologies have been experimentally implemented into the new academic…

  14. Audiovisual Translation in LSP – A Case for Using Captioning in Teaching Languages for Specific Purposes

    OpenAIRE

    Jaroslaw Krajka

    2015-01-01

    Audiovisual translation, or producing subtitles for video materials, had long been out of reach of language teachers due to sophisticated and expensive software. However, with the advent of social networking and video sharing sites, it has become possible to create subtitles for videos in a much easier fashion without any expense. Subtitled materials open up interesting instructional opportunities in the classroom, giving teachers three channels of information delivery for flexible use. The p...

  15. Preparing Negotiations in Services: EC Audiovisuals in the Doha Round

    OpenAIRE

    Messerlin, Patrick; Cocq, Emmanuel

    2004-01-01

    Under the 1994 Uruguay Round Agreement, only nineteen WTO members have made commitments in audiovisual services in their GATS schedule (see table 7). As illustrated in table 7, these commitments are generally of limited scope and magnitude.1 Among the large audiovisual producers, only the United States has taken substantial commitments at the various stages of audiovisual production, distribution, and transmission. Although more limited, the commitments by India (the world’s largest film prod...

  16. Audiovisual Generation of Social Attitudes from Neutral Stimuli

    OpenAIRE

    Barbulescu, Adela; Bailly, Gérard; Ronfard, Rémi; Pouget, Maël

    2015-01-01

    The focus of this study is the generation of expressive audiovisual speech from neutral utterances for 3D virtual actors. Taking into account the segmental and suprasegmental aspects of audiovisual speech, we propose and compare several computational frameworks for the generation of expressive speech and face animation. We notably evaluate a standard frame-based conversion approach with two other methods that postulate the existence of global prosodic audiovisual patterns that are characteris...

  17. Audio-visual affective expression recognition

    Science.gov (United States)

    Huang, Thomas S.; Zeng, Zhihong

    2007-11-01

    Automatic affective expression recognition has attracted more and more attention of researchers from different disciplines, which will significantly contribute to a new paradigm for human computer interaction (affect-sensitive interfaces, socially intelligent environments) and advance the research in the affect-related fields including psychology, psychiatry, and education. Multimodal information integration is a process that enables human to assess affective states robustly and flexibly. In order to understand the richness and subtleness of human emotion behavior, the computer should be able to integrate information from multiple sensors. We introduce in this paper our efforts toward machine understanding of audio-visual affective behavior, based on both deliberate and spontaneous displays. Some promising methods are presented to integrate information from both audio and visual modalities. Our experiments show the advantage of audio-visual fusion in affective expression recognition over audio-only or visual-only approaches.

  18. Dynamic Perceptual Changes in Audiovisual Simultaneity

    OpenAIRE

    Kanai, Ryota; Sheth, Bhavin R.; Verstraten, Frans A J; Shimojo, Shinsuke

    2007-01-01

    Background: The timing at which sensory input reaches the level of conscious perception is an intriguing question still awaiting an answer. It is often assumed that both visual and auditory percepts have a modality specific processing delay and their difference determines perceptual temporal offset. Methodology/Principal Findings: Here, we show that the perception of audiovisual simultaneity can change flexibly and fluctuates over a short period of time while subjects observe a constant ...

  19. Active methodology in the Audiovisual communication degree

    OpenAIRE

    Giménez López, José Luis; Magal Royo, Teresa; García Laborda, Jesús; Dunai Dunai, Larisa

    2010-01-01

    The paper describes the adaptation methods of the active methodologies of the new European higher education area in the new Audiovisual Communication degree under the perspective of subjects related to the area of the interactive communication in Europe. The proposed active methodologies have been experimentally implemented into the new academic curricular development of the subjects, leading to a docent adjustment for the professors who currently teach lectures and who have been evaluated fo...

  20. Diminished sensitivity of audiovisual temporal order in autism spectrum disorder

    Directory of Open Access Journals (Sweden)

    Liselotte De Boer

    2013-02-01

    Full Text Available We examined sensitivity of audiovisual temporal order in adolescents with Autism Spectrum Disorder (ASD using an audiovisual Temporal Order Judgment (TOJ task. In order to assess domain-specific impairments, the stimuli varied in social complexity from simple flash/beeps to videos of a handclap or a speaking face. Compared to typically-developing controls, individuals with ASD were generally less sensitive in judgments of audiovisual temporal order (larger Just Noticeable Differences, JNDs, but there was no specific impairment with social stimuli. This suggests that people with ASD suffer from a more general impairment in audiovisual temporal processing.

  1. Audiovisual bimodal mutual compensation of Chinese

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    The perception of human languages is inherently a multi-modalprocess, in which audio information can be compensated by visual information to improve the recognition performance. Such a phenomenon in English, German, Spanish and so on has been researched, but in Chinese it has not been reported yet. In our experiment, 14 syllables (/ba, bi, bian, biao, bin, de, di, dian, duo, dong, gai, gan, gen, gu/), extracted from Chinese audiovisual bimodal speech database CAVSR-1.0, were pronounced by 10 subjects. The audio-only stimuli, audiovisual stimuli, and visual-only stimuli were recognized by 20 observers. The audio-only stimuli and audiovisual stimuli both were presented under 5 conditions: no noise, SNR 0 dB, -8 dB, -12 dB, and -16 dB. The experimental result is studied and the following conclusions for Chinese speech are reached. Human beings can recognize visual-only stimuli rather well. The place of articulation determines the visual distinction. In noisy environment, audio information can remarkably be compensated by visual information and as a result the recognition performance is greatly improved.

  2. Exogenous spatial attention decreases audiovisual integration.

    Science.gov (United States)

    Van der Stoep, N; Van der Stigchel, S; Nijboer, T C W

    2015-02-01

    Multisensory integration (MSI) and spatial attention are both mechanisms through which the processing of sensory information can be facilitated. Studies on the interaction between spatial attention and MSI have mainly focused on the interaction between endogenous spatial attention and MSI. Most of these studies have shown that endogenously attending a multisensory target enhances MSI. It is currently unclear, however, whether and how exogenous spatial attention and MSI interact. In the current study, we investigated the interaction between these two important bottom-up processes in two experiments. In Experiment 1 the target location was task-relevant, and in Experiment 2 the target location was task-irrelevant. Valid or invalid exogenous auditory cues were presented before the onset of unimodal auditory, unimodal visual, and audiovisual targets. We observed reliable cueing effects and multisensory response enhancement in both experiments. To examine whether audiovisual integration was influenced by exogenous spatial attention, the amount of race model violation was compared between exogenously attended and unattended targets. In both Experiment 1 and Experiment 2, a decrease in MSI was observed when audiovisual targets were exogenously attended, compared to when they were not. The interaction between exogenous attention and MSI was less pronounced in Experiment 2. Therefore, our results indicate that exogenous attention diminishes MSI when spatial orienting is relevant. The results are discussed in terms of models of multisensory integration and attention. PMID:25341648

  3. El periodismo audiovisual y las TIC como herramientas para trabajar las destrezas orales en el aula de E/LE

    OpenAIRE

    Fernández-San Emeterio, Carmen

    2016-01-01

    El periodismo audiovisual –accesible gracias al uso extendido de internet y, con ello, de las plataformas de las cadenas de televisión y medios de comunicación en general– es un material abundante y diverso para su empleo en el aula de E/LE. Cada trabajo de periodismo audiovisual es un acto comunicativo con unas características que lo convierten en una pieza interesante para su utilización en clase: apegado a la realidad y reflejo de la sociedad, emplea un lenguaje cercano que apreciamos inse...

  4. Eyewitnesses of History: Italian Amateur Cinema as Cultural Heritage and Source for Audiovisual and Media Production

    OpenAIRE

    SIMONI, Paolo

    2015-01-01

    abstractThe role of amateur cinema as archival material in Italian media productions has only recently been discovered. Italy, as opposed to other European countries, lacked a local, regional and national policy for the collection and preservation of private audiovisual documents, which led, as a result, to the inaccessibility of the sources. In 2002 the Archivio Nazionale del Film di Famiglia (Italy’s Amateur Film Archive), founded in Bologna by the Home Movies Association, became the refere...

  5. Children Using Audiovisual Media for Communication: A New Language?

    Science.gov (United States)

    Weiss, Michael

    1982-01-01

    Gives an overview of the Schools Council Communication and Social Skills Project at Brighton Polytechnic in which children ages 9-17 have developed and used audiovisual media such as films, tape-slides, or television programs in the classroom. The effects of audiovisual language on education are briefly discussed. (JJD)

  6. Use of Audiovisual Texts in University Education Process

    Science.gov (United States)

    Aleksandrov, Evgeniy P.

    2014-01-01

    Audio-visual learning technologies offer great opportunities in the development of students' analytical and projective abilities. These technologies can be used in classroom activities and for homework. This article discusses the features of audiovisual media texts use in a series of social sciences and humanities in the University curriculum.

  7. Uses and Abuses of Audio-Visual Aids in Reading.

    Science.gov (United States)

    Eggers, Edwin H.

    Audiovisual aids are properly used in reading when they "turn students on," and they are abused when they fail to do so or when they actually "turn students off." General guidelines one could use in sorting usable from unusable aids are (1) Has the teacher saved time by using an audiovisual aid? (2) Is the aid appropriate to the sophistication…

  8. The Practical Audio-Visual Handbook for Teachers.

    Science.gov (United States)

    Scuorzo, Herbert E.

    The use of audio/visual media as an aid to instruction is a common practice in today's classroom. Most teachers, however, have little or no formal training in this field and rarely a knowledgeable coordinator to help them. "The Practical Audio-Visual Handbook for Teachers" discusses the types and mechanics of many of these media forms and proposes…

  9. Selective Audiovisual Semantic Integration Enabled by Feature-Selective Attention.

    Science.gov (United States)

    Li, Yuanqing; Long, Jinyi; Huang, Biao; Yu, Tianyou; Wu, Wei; Li, Peijun; Fang, Fang; Sun, Pei

    2016-01-01

    An audiovisual object may contain multiple semantic features, such as the gender and emotional features of the speaker. Feature-selective attention and audiovisual semantic integration are two brain functions involved in the recognition of audiovisual objects. Humans often selectively attend to one or several features while ignoring the other features of an audiovisual object. Meanwhile, the human brain integrates semantic information from the visual and auditory modalities. However, how these two brain functions correlate with each other remains to be elucidated. In this functional magnetic resonance imaging (fMRI) study, we explored the neural mechanism by which feature-selective attention modulates audiovisual semantic integration. During the fMRI experiment, the subjects were presented with visual-only, auditory-only, or audiovisual dynamical facial stimuli and performed several feature-selective attention tasks. Our results revealed that a distribution of areas, including heteromodal areas and brain areas encoding attended features, may be involved in audiovisual semantic integration. Through feature-selective attention, the human brain may selectively integrate audiovisual semantic information from attended features by enhancing functional connectivity and thus regulating information flows from heteromodal areas to brain areas encoding the attended features. PMID:26759193

  10. Trigger Videos on the Web: Impact of Audiovisual Design

    Science.gov (United States)

    Verleur, Ria; Heuvelman, Ard; Verhagen, Plon W.

    2011-01-01

    Audiovisual design might impact emotional responses, as studies from the 1970s and 1980s on movie and television content show. Given today's abundant presence of web-based videos, this study investigates whether audiovisual design will impact web-video content in a similar way. The study is motivated by the potential influence of video-evoked…

  11. Guide to the Production and Use of Audio-Visual Aids in Library and Information Science Teaching.

    Science.gov (United States)

    Thompson, Anthony H.

    Designed particularly for use in developing countries, this guide provides information to help teachers of librarianship and information science make their own simple and effective audiovisual (AV) materials. It is noted that all illustrations in the guide may be duplicated or adapted as desired. Sections cover: (1) the advantages of using AV…

  12. The Use of Audio-Visual Aids in Teaching: A Study in the Saudi Girls Colleges.

    Science.gov (United States)

    Al-Sharhan, Jamal A.

    1993-01-01

    A survey of faculty in girls colleges in Riyadh, Saudi Arabia, investigated teaching experience, academic rank, importance of audiovisual aids, teacher training, availability of audiovisual centers, and reasons for not using audiovisual aids. Proposes changes to increase use of audiovisual aids: more training courses, more teacher release time,…

  13. Categorization of natural dynamic audiovisual scenes.

    Directory of Open Access Journals (Sweden)

    Olli Rummukainen

    Full Text Available This work analyzed the perceptual attributes of natural dynamic audiovisual scenes. We presented thirty participants with 19 natural scenes in a similarity categorization task, followed by a semi-structured interview. The scenes were reproduced with an immersive audiovisual display. Natural scene perception has been studied mainly with unimodal settings, which have identified motion as one of the most salient attributes related to visual scenes, and sound intensity along with pitch trajectories related to auditory scenes. However, controlled laboratory experiments with natural multimodal stimuli are still scarce. Our results show that humans pay attention to similar perceptual attributes in natural scenes, and a two-dimensional perceptual map of the stimulus scenes and perceptual attributes was obtained in this work. The exploratory results show the amount of movement, perceived noisiness, and eventfulness of the scene to be the most important perceptual attributes in naturalistically reproduced real-world urban environments. We found the scene gist properties openness and expansion to remain as important factors in scenes with no salient auditory or visual events. We propose that the study of scene perception should move forward to understand better the processes behind multimodal scene processing in real-world environments. We publish our stimulus scenes as spherical video recordings and sound field recordings in a publicly available database.

  14. Audiovisual bimodal mutual compensation of Chinese

    Institute of Scientific and Technical Information of China (English)

    ZHOU; Zhi

    2001-01-01

    [1]Richard, P., Schumeyer, Kenneth E. B., The effect of visual information on word initial consonant perception of dysarthric speech, in Proc. ICSLP'96 October 3-6 1996, Philadephia, Pennsylvania, USA.[2]Goff, B. L., Marigny, T. G., Benoit, C., Read my lips...and my jaw! How intelligible are the components of a speaker's face? Eurospeech'95, 4th European Conference on Speech Communication and Technology, Madrid, September 1995.[3]McGurk, H., MacDonald, J. Hearing lips and seeing voices, Nature, 1976, 264: 746.[4]Duran A. F., Mcgurk effect in Spanish and German listeners: Influences of visual cues in the perception of Spanish and German confliction audio-visual stimuli, Eurospeech'95. 4th European Conference on Speech Communication and Technology, Madrid, September 1995.[5]Luettin, J., Visual speech and speaker recognition, Ph.D thesis, University of Sheffield, 1997.[6]Xu Yanjun, Du Limin, Chinese audiovisual bimodal speech database CAVSR1.0, Chinese Journal of Acoustics, to appear.[7]Zhang Jialu, Speech corpora and language input/output methods' evaluation, Chinese Applied Acoustics, 1994, 13(3): 5.

  15. Audiovisual integration facilitates monkeys' short-term memory.

    Science.gov (United States)

    Bigelow, James; Poremba, Amy

    2016-07-01

    Many human behaviors are known to benefit from audiovisual integration, including language and communication, recognizing individuals, social decision making, and memory. Exceptionally little is known about the contributions of audiovisual integration to behavior in other primates. The current experiment investigated whether short-term memory in nonhuman primates is facilitated by the audiovisual presentation format. Three macaque monkeys that had previously learned an auditory delayed matching-to-sample (DMS) task were trained to perform a similar visual task, after which they were tested with a concurrent audiovisual DMS task with equal proportions of auditory, visual, and audiovisual trials. Parallel to outcomes in human studies, accuracy was higher and response times were faster on audiovisual trials than either unisensory trial type. Unexpectedly, two subjects exhibited superior unimodal performance on auditory trials, a finding that contrasts with previous studies, but likely reflects their training history. Our results provide the first demonstration of a bimodal memory advantage in nonhuman primates, lending further validation to their use as a model for understanding audiovisual integration and memory processing in humans. PMID:27010716

  16. Audiovisual Quality Fusion based on Relative Multimodal Complexity

    DEFF Research Database (Denmark)

    You, Junyong; Korhonen, Jari; Reiter, Ulrich

    2011-01-01

    for relative multimodal complexity analysis to derive the fusion parameter in objective audiovisual quality metrics. Audio and video qualities are first estimated separately using advanced quality models, and then they are combined into the overall audiovisual quality using a linear fusion. Based on......In multimodal presentations the perceived audiovisual quality assessment is significantly influenced by the content of both the audio and visual tracks. Based on our earlier subjective quality test for finding the optimal trade-off between audio and video quality, this paper proposes a novel method...... quality metrics, compared to the fusion parameters obtained from the subjective quality tests using other known optimization methods....

  17. Automatic audiovisual integration in speech perception.

    Science.gov (United States)

    Gentilucci, Maurizio; Cattaneo, Luigi

    2005-11-01

    Two experiments aimed to determine whether features of both the visual and acoustical inputs are always merged into the perceived representation of speech and whether this audiovisual integration is based on either cross-modal binding functions or on imitation. In a McGurk paradigm, observers were required to repeat aloud a string of phonemes uttered by an actor (acoustical presentation of phonemic string) whose mouth, in contrast, mimicked pronunciation of a different string (visual presentation). In a control experiment participants read the same printed strings of letters. This condition aimed to analyze the pattern of voice and the lip kinematics controlling for imitation. In the control experiment and in the congruent audiovisual presentation, i.e. when the articulation mouth gestures were congruent with the emission of the string of phones, the voice spectrum and the lip kinematics varied according to the pronounced strings of phonemes. In the McGurk paradigm the participants were unaware of the incongruence between visual and acoustical stimuli. The acoustical analysis of the participants' spoken responses showed three distinct patterns: the fusion of the two stimuli (the McGurk effect), repetition of the acoustically presented string of phonemes, and, less frequently, of the string of phonemes corresponding to the mouth gestures mimicked by the actor. However, the analysis of the latter two responses showed that the formant 2 of the participants' voice spectra always differed from the value recorded in the congruent audiovisual presentation. It approached the value of the formant 2 of the string of phonemes presented in the other modality, which was apparently ignored. The lip kinematics of the participants repeating the string of phonemes acoustically presented were influenced by the observation of the lip movements mimicked by the actor, but only when pronouncing a labial consonant. The data are discussed in favor of the hypothesis that features of both

  18. Child′s dental fear: Cause related factors and the influence of audiovisual modeling

    Directory of Open Access Journals (Sweden)

    Jayanthi Mungara

    2013-01-01

    Full Text Available Background: Delivery of effective dental treatment to a child patient requires thorough knowledge to recognize dental fear and its management by the application of behavioral management techniques. Children′s Fear Survey Schedule - Dental Subscale (CFSS-DS helps in identification of specific stimuli which provoke fear in children with regard to dental situation. Audiovisual modeling can be successfully used in pediatric dental practice. Aim: To assess the degree of fear provoked by various stimuli in the dental office and to evaluate the effect of audiovisual modeling on dental fear of children using CFSS-DS. Materials and Methods: Ninety children were divided equally into experimental (group I and control (group II groups and were assessed in two visits for their degree of fear and the effect of audiovisual modeling, with the help of CFSS-DS. Results: The most fear-provoking stimulus for children was injection and the least was to open the mouth and having somebody look at them. There was no statistically significant difference in the overall mean CFSS-DS scores between the two groups during the initial session (P > 0.05. However, in the final session, a statistically significant difference was observed in the overall mean fear scores between the groups (P < 0.01. Significant improvement was seen in group I, while no significant change was noted in case of group II. Conclusion: Audiovisual modeling resulted in a significant reduction of overall fear as well as specific fear in relation to most of the items. A significant reduction of fear toward dentists, doctors in general, injections, being looked at, the sight, sounds, and act of the dentist drilling, and having the nurse clean their teeth was observed.

  19. Ordinal models of audiovisual speech perception

    DEFF Research Database (Denmark)

    Andersen, Tobias

    2011-01-01

    Audiovisual information is integrated in speech perception. One manifestation of this is the McGurk illusion in which watching the articulating face alters the auditory phonetic percept. Understanding this phenomenon fully requires a computational model with predictive power. Here, we describe...... ordinal models that can account for the McGurk illusion. We compare this type of models to the Fuzzy Logical Model of Perception (FLMP) in which the response categories are not ordered. While the FLMP generally fit the data better than the ordinal model it also employs more free parameters in complex...... experiments when the number of response categories are high as it is for speech perception in general. Testing the predictive power of the models using a form of cross-validation we found that ordinal models perform better than the FLMP. Based on these findings we suggest that ordinal models generally have...

  20. Nuevos actores sociales en el escenario audiovisual

    Directory of Open Access Journals (Sweden)

    Gloria Rosique Cedillo

    2012-04-01

    Full Text Available A raíz de la entrada de las televisiones privadas al sector audiovisual español, el panorama de los contenidos de entretenimiento de la televisión generalista vivió cambios trascendentales que se vieron reflejados en las parrillas de programación. Esta situación ha abierto la polémica en torno a la disyuntiva de tener o no una televisión, sea pública o privada, que no cumple con las expectativas sociales esperadas. Esto ha motivado a que grupos civiles organizados en asociaciones de telespectadores, emprendan diversas acciones con el objetivo de incidir en el rumbo que los contenidos de entretenimiento vienen tomando, apostando fuertemente por la educación del receptor en relación a los medios audiovisuales, y por la participación ciudadana en torno a los temas televisivos.

  1. Audiovisual Enhancement of Classroom Teaching: A Primer for Law Professors.

    Science.gov (United States)

    Johnson, Vincent Robert

    1987-01-01

    A discussion of audiovisual instruction in the law school classroom looks at the strengths, weaknesses, equipment and facilities needs and hints for classroom use of overhead projection, audiotapes and videotapes, and slides. (MSE)

  2. Proper Use of Audio-Visual Aids: Essential for Educators.

    Science.gov (United States)

    Dejardin, Conrad

    1989-01-01

    Criticizes educators as the worst users of audio-visual aids and among the worst public speakers. Offers guidelines for the proper use of an overhead projector and the development of transparencies. (DMM)

  3. Prediction and constraint in audiovisual speech perception.

    Science.gov (United States)

    Peelle, Jonathan E; Sommers, Mitchell S

    2015-07-01

    During face-to-face conversational speech listeners must efficiently process a rapid and complex stream of multisensory information. Visual speech can serve as a critical complement to auditory information because it provides cues to both the timing of the incoming acoustic signal (the amplitude envelope, influencing attention and perceptual sensitivity) and its content (place and manner of articulation, constraining lexical selection). Here we review behavioral and neurophysiological evidence regarding listeners' use of visual speech information. Multisensory integration of audiovisual speech cues improves recognition accuracy, particularly for speech in noise. Even when speech is intelligible based solely on auditory information, adding visual information may reduce the cognitive demands placed on listeners through increasing the precision of prediction. Electrophysiological studies demonstrate that oscillatory cortical entrainment to speech in auditory cortex is enhanced when visual speech is present, increasing sensitivity to important acoustic cues. Neuroimaging studies also suggest increased activity in auditory cortex when congruent visual information is available, but additionally emphasize the involvement of heteromodal regions of posterior superior temporal sulcus as playing a role in integrative processing. We interpret these findings in a framework of temporally-focused lexical competition in which visual speech information affects auditory processing to increase sensitivity to acoustic information through an early integration mechanism, and a late integration stage that incorporates specific information about a speaker's articulators to constrain the number of possible candidates in a spoken utterance. Ultimately it is words compatible with both auditory and visual information that most strongly determine successful speech perception during everyday listening. Thus, audiovisual speech perception is accomplished through multiple stages of integration

  4. CAVA (human Communication: an Audio-Visual Archive)

    OpenAIRE

    Mahon, M. S.

    2009-01-01

    In order to investigate human communication and interaction, researchers need hours of audio-visual data, sometimes recorded over periods of months or years. The process of collecting, cataloguing and transcribing such valuable data is time-consuming and expensive. Once it is collected and ready to use, it makes sense to get the maximum value from it by reusing it and sharing it among the research community. But unlike highly-controlled experimental data, natural audio-visual data tends t...

  5. Investigating the Use of Audiovisual Elicitation on the Creative Enterprise

    OpenAIRE

    Flatt, Nicholas

    2014-01-01

    Elicitation methods have been explored extensively in social science research, and in business contexts, to uncover unarticulated informant knowledge. This qualitative study investigates the use of an audiovisual elicitation interviewing technique, developed by a UKbased creative multimedia production social enterprise; Fifth Planet Productions CIC. The method employs a system of using audiovisual stimulus to elicit participant responses in the interview setting. This study, conducted in t...

  6. Audiovisual Association Learning in the Absence of Primary Visual Cortex

    OpenAIRE

    Seirafi, Mehrdad; De Weerd, Peter; Pegna, Alan J.; de Gelder, Beatrice

    2016-01-01

    Learning audiovisual associations is mediated by the primary cortical areas; however, recent animal studies suggest that such learning can take place even in the absence of the primary visual cortex. Other studies have demonstrated the involvement of extra-geniculate pathways and especially the superior colliculus (SC) in audiovisual association learning. Here, we investigated such learning in a rare human patient with complete loss of the bilateral striate cortex. We carried out an implicit ...

  7. Learning bimodal structure in audio-visual data

    OpenAIRE

    Monaci, Gianluca; Vandergheynst, Pierre; Sommer, Friederich T.

    2009-01-01

    A novel model is presented to learn bimodally informative structures from audio-visual signals. The signal is represented as a sparse sum of audio- visual kernels. Each kernel is a bimodal function consisting of synchronous snippets of an audio waveform and a spatio-temporal visual basis function. To represent an audio-visual signal, the kernels can be positioned independently and arbitrarily in space and time. The proposed algorithm uses unsupervised learning to form dicti...

  8. Entorno de creación de contenido audiovisual

    OpenAIRE

    IBÁÑEZ SEMPERE, JORGE

    2015-01-01

    En este PFC se pone a disposición de cualquier interesado un completo entorno de creación de contenido audiovisual, valiéndonos del plató creado en la ETSIT, podremos trabajar con un chroma, emplear software de edición, adquirir nociones básicas de audiovisual e incluso llegar a emitir nuestro propio programa en streaming

  9. Self-organizing maps for measuring similarity of audiovisual speech percepts

    DEFF Research Database (Denmark)

    Bothe, Hans-Heinrich

    visual lip features is used. Phoneme-related receptive fields result on the SOM basis; they are speaker dependent and show individual locations and strain. Overlapping main slopes indicate a high similarity of respective units; distortion or extra peaks originate from the influence of other units....... Dependent on the training data, these other units may also be contextually immediate neighboring units. The poster demonstrates the idea with text material spoken by one individual subject using a set of simple audio-visual features. The data material for the training process consists of 44 labeled...

  10. Audiovisual Translation in LSP – A Case for Using Captioning in Teaching Languages for Specific Purposes

    Directory of Open Access Journals (Sweden)

    Jaroslaw Krajka

    2015-11-01

    Full Text Available Audiovisual translation, or producing subtitles for video materials, had long been out of reach of language teachers due to sophisticated and expensive software. However, with the advent of social networking and video sharing sites, it has become possible to create subtitles for videos in a much easier fashion without any expense. Subtitled materials open up interesting instructional opportunities in the classroom, giving teachers three channels of information delivery for flexible use. The present paper deals with the phenomenon of subtitling videos for the ESP classroom. The author starts with a literature review, then presents implementation models and classroom procedures. Finally, technical solutions are outlined.

  11. No, there is no 150 ms lead of visual speech on auditory speech, but a range of audiovisual asynchronies varying from small audio lead to large audio lag.

    Directory of Open Access Journals (Sweden)

    Jean-Luc Schwartz

    2014-07-01

    Full Text Available An increasing number of neuroscience papers capitalize on the assumption published in this journal that visual speech would be typically 150 ms ahead of auditory speech. It happens that the estimation of audiovisual asynchrony in the reference paper is valid only in very specific cases, for isolated consonant-vowel syllables or at the beginning of a speech utterance, in what we call "preparatory gestures". However, when syllables are chained in sequences, as they are typically in most parts of a natural speech utterance, asynchrony should be defined in a different way. This is what we call "comodulatory gestures" providing auditory and visual events more or less in synchrony. We provide audiovisual data on sequences of plosive-vowel syllables (pa, ta, ka, ba, da, ga, ma, na showing that audiovisual synchrony is actually rather precise, varying between 20 ms audio lead and 70 ms audio lag. We show how more complex speech material should result in a range typically varying between 40 ms audio lead and 200 ms audio lag, and we discuss how this natural coordination is reflected in the so-called temporal integration window for audiovisual speech perception. Finally we present a toy model of auditory and audiovisual predictive coding, showing that visual lead is actually not necessary for visual prediction.

  12. A representação audiovisual das mulheres migradas The audiovisual representation of migrant women

    Directory of Open Access Journals (Sweden)

    Luciana Pontes

    2012-12-01

    Full Text Available Neste artigo analiso as representações sobre as mulheres migradas nos fundos audiovisuais de algumas entidades que trabalham com gênero e imigração em Barcelona. Por haver detectado nos audiovisuais analisados uma associação recorrente das mulheres migradas à pobreza, à criminalidade, à ignorância, à maternidade obrigatória e numerosa, à prostituição etc., busquei entender como tais representações tomam forma, estudando os elementos narrativos, estilísticos, visuais e verbais através dos quais se articulam essas imagens e discursos sobre as mulheres migradas.In this paper I analyze the representations of the migrant women at the audiovisual founds in some of the organizations that work with gender and immigration in Barcelona. At the audiovisuals I have found a recurring association of the migrant women with poverty, criminality, ignorance, passivity, undocumentation, gender violence, compulsory and numerous motherhood, prostitution, etc. Thus, I tried to understand the ways in which these representations are shaped, studying the narrative, stylistic, visual and verbal elements through which these images and discourses of the migrant women are articulated.

  13. Parametric packet-based audiovisual quality model for IPTV services

    CERN Document Server

    Garcia, Marie-Neige

    2014-01-01

    This volume presents a parametric packet-based audiovisual quality model for Internet Protocol TeleVision (IPTV) services. The model is composed of three quality modules for the respective audio, video and audiovisual components. The audio and video quality modules take as input a parametric description of the audiovisual processing path, and deliver an estimate of the audio and video quality. These outputs are sent to the audiovisual quality module which provides an estimate of the audiovisual quality. Estimates of perceived quality are typically used both in the network planning phase and as part of the quality monitoring. The same audio quality model is used for both these phases, while two variants of the video quality model have been developed for addressing the two application scenarios. The addressed packetization scheme is MPEG2 Transport Stream over Real-time Transport Protocol over Internet Protocol. In the case of quality monitoring, that is the case for which the network is already set-up, the aud...

  14. The Fungible Audio-Visual Mapping and its Experience

    Directory of Open Access Journals (Sweden)

    Adriana Sa

    2014-12-01

    Full Text Available This article questions how different sorts of audio-visual mappings may be perceived. Clearly perceivable cause and effect relationships can be problematic if one desires the audience to experience the music. Indeed perception would bias those sonic qualities that fit previous concepts of causation, subordinating other sonic qualities, which may form the relations between the sounds themselves. The question is, how can an audio-visual mapping produce a sense of causation, and simultaneously confound the actual cause-effect relationships. We call this a fungible audio-visual mapping; the present investigation seeks to glean its constitution and aspect. We report a study, which draws upon methods from experimental psychology to inform audio-visual instrument design and composition. The participants are shown several audio-visual mapping prototypes, and posed quantitative and qualitative questions. These questions respect to their sense of causation, and their sense of understanding the cause-effect relationships. The study shows that a fungible mapping requires both synchronized and seemingly non-related components – sufficient complexity to be confusing. As the specific cause-effect concepts remain inconclusive, the sense of causation embraces the whole. 

  15. Media Aid Beyond the Factual: Culture, Development, and Audiovisual Assistance

    Directory of Open Access Journals (Sweden)

    Benjamin A. J. Pearson

    2015-01-01

    Full Text Available This paper discusses audiovisual assistance, a form of development aid that focuses on the production and distribution of cultural and entertainment media such as fictional films and TV shows. While the first audiovisual assistance program dates back to UNESCO’s International Fund for the Promotion of Culture in the 1970s, the past two decades have seen a proliferation of audiovisual assistance that, I argue, is related to a growing concern for culture in post-2015 global development agendas. In this paper, I examine the aims and motivations behind the EU’s audiovisual assistance programs to countries in the Global South, using data from policy documents and semi-structured, in-depth interviews with Program Managers and administrative staff in Brussels. These programs prioritize forms of audiovisual content that are locally specific, yet globally tradable. Furthermore, I argue that they have an ambivalent relationship with traditional notions of international development, one that conceptualizes media not only as a means to achieve economic development and human rights aims, but as a form of development itself.

  16. 7 CFR 3015.200 - Acknowledgement of support on publications and audiovisuals.

    Science.gov (United States)

    2010-01-01

    ... A defines “audiovisual,” “production of an audiovisual,” and “publication.” (b) Publications... published with grant support and, if feasible, on any publication reporting the results of, or describing, a... support placed on any audiovisual which is produced with grant support and which has a direct...

  17. Electrophysiological assessment of audiovisual integration in speech perception

    DEFF Research Database (Denmark)

    Eskelund, Kasper; Dau, Torsten

    auditory speech percept? In two experiments, which both combine behavioral and neurophysiological measures, an uncovering of the relation between perception of faces and of audiovisual integration is attempted. Behavioral findings suggest a strong effect of face perception, whereas the MMN results are less......Speech perception integrates signal from ear and eye. This is witnessed by a wide range of audiovisual integration effects, such as ventriloquism and the McGurk illusion. Some behavioral evidence suggest that audiovisual integration of specific aspects is special for speech perception. However, our...... mismatch negativity response (MMN). MMN has the property of being evoked when an acoustic stimulus deviates from a learned pattern of stimuli. In three experimental studies, this effect is utilized to track when a coinciding visual signal alters auditory speech perception. Visual speech emanates from the...

  18. Audio-Visual Aids in Language Teaching, with Special Reference to English as a Foreign Language. Specialised Bibliography B9, June 1977.

    Science.gov (United States)

    British Council, London (England). English-Teaching Information Centre.

    This bibliography lists 16 books, 51 articles, and 2 films, all dealing with the use of visual and audiovisual aids in the modern language classroom, particularly in the area of English as a second language. Most of the material cited has been published since 1970. (AM)

  19. Evolution of audiovisual production in five Spanish Cybermedia

    Directory of Open Access Journals (Sweden)

    Javier Mayoral Sánchez

    2014-12-01

    Full Text Available This paper quantifies and analyzes the evolution of audiovisual production of five Spanish digital newspapers: abc.es, elconfidencial.com, elmundo.es, elpais.com and lavanguardia.com. So have been studied videos published on the five cover for four weeks (fourteen days in November 2011 and another fourteen in March 2014. This diachronic perspective has revealed a remarkable contradiction in online media about audiovisual products. Even with very considerable differences between them, the five analyzed media increasingly publish videos. They do it in in the most valued areas of their homepages. However, is not perceived in them a willingness to engage firmly

  20. El papel del traductor en la industria audiovisual

    OpenAIRE

    Lachat Leal, Christina

    2011-01-01

    Hasta ahora la mayor??a de los trabajos que tratan la traducci??n audiovisual, estudian o bien los aspectos t??cnicos y tecnol??gicos del subtitulado, del doblaje y de la voz superpuesta, o bien las peculiaridades de los diferentes productos audiovisuales como largometraje, documental, video promocional, videojuego, etc. que afectan al proceso de traducci??n. Sin embargo, el desarrollo y la expansi??n espectacular de la industria del ocio en la que se encuadra la industria audiovisual nos ...

  1. Deep Multimodal Learning for Audio-Visual Speech Recognition

    OpenAIRE

    Mroueh, Youssef; Marcheret, Etienne; Goel, Vaibhava

    2015-01-01

    In this paper, we present methods in deep multimodal learning for fusing speech and visual modalities for Audio-Visual Automatic Speech Recognition (AV-ASR). First, we study an approach where uni-modal deep networks are trained separately and their final hidden layers fused to obtain a joint feature space in which another deep network is built. While the audio network alone achieves a phone error rate (PER) of $41\\%$ under clean condition on the IBM large vocabulary audio-visual studio datase...

  2. El Archivo de la Palabra : contexto y proyecto del repositorio audiovisual del Ateneu Barcelonès

    Directory of Open Access Journals (Sweden)

    Alcaraz Martínez, Rubén

    2014-12-01

    Full Text Available Es presenten els resultats del projecte de digitalització del fons audiovisual de l'Ateneu Barcelonès iniciat per l'Àrea de Biblioteca i Arxiu Històric l'any 2011. S'explica la metodologia de treball fent èmfasi en la gestió dels fitxers analògics i nascuts digitals i en la problemàtica derivada dels drets d'autor. Finalment, es presenta l'Arxiu de la Paraula i l'@teneu hub, nous repositori i web respectivament, l'objectiu dels quals és difondre el patrimoni audiovisual i donar accés centralitzat als diferents continguts generats per l'entitat.Se presentan los resultados del proyecto de digitalización del fondo audiovisual del Ateneu Barcelonès iniciado por el área de Biblioteca y Archivo Histórico en 2011. Se explica la metodología de trabajo haciendo énfasis en la gestión de los ficheros analógicos y nacidos digitales y en la problemática derivada de los derechos de autor. Finalmente, se presenta el Archivo de la Palabra y el @teneo hub, nuevos repositorio y web respectivamente, cuyo objetivo es difundir el patrimonio audiovisual y dar acceso centralizado a los diferentes contenidos generados por la entidad.This paper reports on the project to digitize the audiovisual archives of the Ateneu Barcelonès, which was launched by that institution’s Library and Archive department in 2011. The paper explains the methodology used to create the repository, focusing on the management of analogue files and born-digital materials and the question of author’s rights. Finally, it presents the new repository L’Arxiu de la Paraula (the Word Archive and the new website, @teneu hub, which are designed to disseminate the Ateneu’s audiovisual heritage and provide centralized access to its different contents.

  3. L'Arxiu de la Paraula : context i projecte del repositori audiovisual de l'Ateneu Barcelonès

    Directory of Open Access Journals (Sweden)

    Alcaraz Martínez, Rubén

    2014-12-01

    Full Text Available Es presenten els resultats del projecte de digitalització del fons audiovisual de l'Ateneu Barcelonès iniciat per l'Àrea de Biblioteca i Arxiu Històric l'any 2011. S'explica la metodologia de treball fent èmfasi en la gestió dels fitxers analògics i nascuts digitals i en la problemàtica derivada dels drets d'autor. Finalment, es presenta l'Arxiu de la Paraula i l'@teneu hub, nous repositori i web respectivament, l'objectiu dels quals és difondre el patrimoni audiovisual i donar accés centralitzat als diferents continguts generats per l'entitat.Se presentan los resultados del proyecto de digitalización del fondo audiovisual del Ateneu Barcelonès iniciado por el área de Biblioteca y Archivo Histórico en 2011. Se explica la metodología de trabajo haciendo énfasis en la gestión de los ficheros analógicos y nacidos digitales y en la problemática derivada de los derechos de autor. Finalmente, se presenta el Archivo de la Palabra y el @teneo hub, nuevos repositorio y web respectivamente, cuyo objetivo es difundir el patrimonio audiovisual y dar acceso centralizado a los diferentes contenidos generados por la entidad.This paper reports on the project to digitize the audiovisual archives of the Ateneu Barcelonès, which was launched by that institution’s Library and Archive department in 2011. The paper explains the methodology used to create the repository, focusing on the management of analogue files and born-digital materials and the question of author’s rights. Finally, it presents the new repository L’Arxiu de la Paraula (the Word Archive and the new website, @teneu hub, which are designed to disseminate the Ateneu’s audiovisual heritage and provide centralized access to its different contents.

  4. Developing a typology of humor in audiovisual media

    NARCIS (Netherlands)

    Buijzen, M.A.; Valkenburg, P.M.

    2004-01-01

    The main aim of this study was to develop and investigate a typology of humor in audiovisual media. We identified 41 humor techniques, drawing on Berger's (1976, 1993) typology of humor in narratives, audience research on humor preferences, and an inductive analysis of humorous commercials. We analy

  5. The Role of Audiovisual Mass Media News in Language Learning

    Science.gov (United States)

    Bahrani, Taher; Sim, Tam Shu

    2011-01-01

    The present paper focuses on the role of audio/visual mass media news in language learning. In this regard, the two important issues regarding the selection and preparation of TV news for language learning are the content of the news and the linguistic difficulty. Content is described as whether the news is specialized or universal. Universal…

  6. Media Literacy and Audiovisual Languages: A Case Study from Belgium

    Science.gov (United States)

    Van Bauwel, Sofie

    2008-01-01

    This article examines the use of media in the construction of a "new" language for children. We studied how children acquire and use media literacy skills through their engagement in an educational art project. This media literacy project is rooted in the realm of audiovisual media, within which children's sound and visual worlds are the focus of…

  7. Audiovisual document. ''Introduction to the visit of Ganil''

    International Nuclear Information System (INIS)

    During the year 1985, an audiovisual document (diaporama) has been realized on Ganil. This diaporama with four slide-projectors, which lasts 12 minutes is permanently set in a conference room at Ganil. Two video sequences have been realized, coming from this diaporama, on experimentation in nuclear physics on the operation principle of the cyclotrons

  8. Audio-Visual Equipment Depreciation. RDU-75-07.

    Science.gov (United States)

    Drake, Miriam A.; Baker, Martha

    A study was conducted at Purdue University to gather operational and budgetary planning data for the Libraries and Audiovisual Center. The objectives were: (1) to complete a current inventory of equipment including year of purchase, costs, and salvage value; (2) to determine useful life data for general classes of equipment; and (3) to determine…

  9. Crossmodal and incremental perception of audiovisual cues to emotional speech

    NARCIS (Netherlands)

    Barkhuysen, Pashiera; Krahmer, E.J.; Swerts, M.G.J.

    2010-01-01

    In this article we report on two experiments about the perception of audiovisual cues to emotional speech. The article addresses two questions: (1) how do visual cues from a speaker's face to emotion relate to auditory cues, and (2) what is the recognition speed for various facial cues to emotion? B

  10. Crossmodal and Incremental Perception of Audiovisual Cues to Emotional Speech

    Science.gov (United States)

    Barkhuysen, Pashiera; Krahmer, Emiel; Swerts, Marc

    2010-01-01

    In this article we report on two experiments about the perception of audiovisual cues to emotional speech. The article addresses two questions: (1) how do visual cues from a speaker's face to emotion relate to auditory cues, and (2) what is the recognition speed for various facial cues to emotion? Both experiments reported below are based on tests…

  11. Audiovisual Ethnography of Philippine Music: A Process-oriented Approach

    Directory of Open Access Journals (Sweden)

    Terada Yoshitaka

    2013-06-01

    Full Text Available Audiovisual documentation has been an important part of ethnomusicological endeavors, but until recently it was treated primarily as a tool of preservation and/or documentation that supplements written ethnography, albeit there a few notable exceptions. The proliferation of inexpensive video equipment has encouraged the unprecedented number of scholars and students in ethnomusicology to be involved in filmmaking, but its potential as a methodology has not been fully explored. As a small step to redefine the application of audiovisual media, Dr. Usopay Cadar, my teacher in Philippine music, and I produced two films: one on Maranao kolintang music and the other on Maranao culture in general, based on the audiovisual footage we collected in 2008. This short essay describes how the screenings of these films were organized in March 2013 for the diverse audiences in the Philippines, and what types of reactions and interactions transpired during the screenings. These screenings were organized both to obtain feedback about the content of the films from the caretakers and stakeholders of the documented tradition and to create a venue for interactions and collaborations to discuss the potential of audiovisual ethnography. Drawing from the analysis of the current project, I propose to regard film not as a fixed product but as a living and organic site that is open to commentaries and critiques, where changes can be made throughout the process. In this perspective, ‘filmmaking’ refers to the entire process of research, filming, editing and post-production activities.

  12. Audiovisual y semiótica: el videoclip como texto

    OpenAIRE

    Rodríguez-López, Jennifer

    2016-01-01

    El vídeo musical es interpretado en este artículo como un texto audiovisual susceptible de análisis a partir del estudio de las funciones del lenguaje predominantes y de determinados códigos siguiendo los conceptos aportados por la teoría semiótic

  13. Kijkwijzer: The Dutch rating system for audiovisual productions

    NARCIS (Netherlands)

    Valkenburg, P.M.; Beentjes, J.W.J.; Nikken, P.; Tan, E.S.H.

    2002-01-01

    Kijkwijzer is the name of the new Dutch rating system in use since early 2001 to provide information about the possible harmful effects of movies, home videos and television programs on young people. The rating system is meant to provide audiovisual productions with both age-based and content-based

  14. Multistage audiovisual integration of speech: dissociating identification and detection

    DEFF Research Database (Denmark)

    Eskelund, Kasper; Tuomainen, Jyrki; Andersen, Tobias

    2011-01-01

    signal. Here we show that identification of phonetic content and detection can be dissociated as speech-specific and non-specific audiovisual integration effects. To this end, we employed synthetically modified stimuli, sine wave speech (SWS), which is an impoverished speech signal that only observers...

  15. The Audiovisual Temporal Binding Window Narrows in Early Childhood

    Science.gov (United States)

    Lewkowicz, David J.; Flom, Ross

    2014-01-01

    Binding is key in multisensory perception. This study investigated the audio-visual (A-V) temporal binding window in 4-, 5-, and 6-year-old children (total N = 120). Children watched a person uttering a syllable whose auditory and visual components were either temporally synchronized or desynchronized by 366, 500, or 666 ms. They were asked…

  16. Context-specific effects of musical expertise on audiovisual integration

    Directory of Open Access Journals (Sweden)

    Laura eBishop

    2014-10-01

    Full Text Available Ensemble musicians exchange auditory and visual signals that can facilitate interpersonal synchronisation. Musical expertise improves how precisely auditory and visual signals are perceptually integrated and increases sensitivity to asynchrony between them. Whether expertise improves sensitivity to audiovisual asynchrony in all instrumental contexts or only in those using sound-producing gestures that are within an observer's own motor repertoire is unclear. This study tested the hypothesis that musicians are more sensitive to audiovisual asynchrony in performances featuring their own instrument than in performances featuring other instruments. Short clips were extracted from audio-video recordings of clarinet, piano, and violin performances and presented to highly-skilled clarinettists, pianists, and violinists. Clips either maintained the audiovisual synchrony present in the original recording or were modified so that the video led or lagged behind the audio. Participants indicated whether the audio and video channels in each clip were synchronised. The range of asynchronies most often endorsed as synchronised was assessed as a measure of participants' sensitivities to audiovisual asynchrony. A positive relationship was observed between musical training and sensitivity, with data pooled across stimuli. While participants across expertise groups detected asynchronies most readily in piano stimuli and least readily in violin stimuli, pianists showed significantly better performance for piano stimuli than for either clarinet or violin. These findings suggest that, to an extent, the effects of expertise on audiovisual integration can be instrument-specific; however, the nature of the sound-producing gestures that are observed has a substantial effect on how readily asynchrony is detected as well.

  17. Context-specific effects of musical expertise on audiovisual integration.

    Science.gov (United States)

    Bishop, Laura; Goebl, Werner

    2014-01-01

    Ensemble musicians exchange auditory and visual signals that can facilitate interpersonal synchronization. Musical expertise improves how precisely auditory and visual signals are perceptually integrated and increases sensitivity to asynchrony between them. Whether expertise improves sensitivity to audiovisual asynchrony in all instrumental contexts or only in those using sound-producing gestures that are within an observer's own motor repertoire is unclear. This study tested the hypothesis that musicians are more sensitive to audiovisual asynchrony in performances featuring their own instrument than in performances featuring other instruments. Short clips were extracted from audio-video recordings of clarinet, piano, and violin performances and presented to highly-skilled clarinetists, pianists, and violinists. Clips either maintained the audiovisual synchrony present in the original recording or were modified so that the video led or lagged behind the audio. Participants indicated whether the audio and video channels in each clip were synchronized. The range of asynchronies most often endorsed as synchronized was assessed as a measure of participants' sensitivities to audiovisual asynchrony. A positive relationship was observed between musical training and sensitivity, with data pooled across stimuli. While participants across expertise groups detected asynchronies most readily in piano stimuli and least readily in violin stimuli, pianists showed significantly better performance for piano stimuli than for either clarinet or violin. These findings suggest that, to an extent, the effects of expertise on audiovisual integration can be instrument-specific; however, the nature of the sound-producing gestures that are observed has a substantial effect on how readily asynchrony is detected as well. PMID:25324819

  18. Audio/Visual Aids: A Study of the Effect of Audio/Visual Aids on the Comprehension Recall of Students.

    Science.gov (United States)

    Bavaro, Sandra

    A study investigated whether the use of audio/visual aids had an effect upon comprehension recall. Thirty fourth-grade students from an urban public school were randomly divided into two equal samples of 15. One group was given a story to read (print only), while the other group viewed a filmstrip of the same story, thereby utilizing audio/visual…

  19. Role of personality and expectations for itch and scratching induced by audiovisual itch stimuli.

    Science.gov (United States)

    Schut, C; Rädel, A; Frey, L; Gieler, U; Kupfer, J

    2016-01-01

    Itch is an unpleasant, bodily sensation, which--similar to pain--evokes behavioral reactions. As a response to itch, people start scratching. There are different ways to provoke itch and subsequent scratching in experimental settings. A non-invasive method to induce itch and scratching is the presentation of itch-related (audio-) visual stimulus material, like slide-supported lectures on skin diseases or crawling insects. Also, watching videos showing other people scratching provokes itch and the desire to scratch. In this review, we focus on psychological factors, which were shown to be associated with itch and scratching provoked by (audio-) visual itch stimuli. First, we summarize the findings on the relationship between personality characteristics and (audio-) visually induced itch. Agreeableness and self-consciousness were shown to be associated with induced itch and scratching in patients with chronic skin diseases, while neuroticism was linked to induced itch in healthy subjects. Second, we present results of a recent study, in which we altered the expectations towards audio-visually induced itch and scratching by changing the information given on upcoming itch stimuli. It was shown that subjects being informed about itch stimuli in a neutral way displayed a shorter scratch duration in itch inducing situations than subjects having catastrophizing expectations. Also, the increase in scratch duration and in the number of scratch movements induced by audiovisual itch stimuli was higher when the patients were not informed about itch induction. Thus, in itch patients neither catastrophizing nor trivializing symptoms seems to be helpful. PMID:26416001

  20. Sistema audiovisual para reconocimiento de comandos Audiovisual system for recognition of commands

    Directory of Open Access Journals (Sweden)

    Alexander Ceballos

    2011-08-01

    Full Text Available Se presenta el desarrollo de un sistema automático de reconocimiento audiovisual del habla enfocado en el reconocimiento de comandos. La representación del audio se realizó mediante los coeficientes cepstrales de Mel y las primeras dos derivadas temporales. Para la caracterización del vídeo se hizo seguimiento automático de características visuales de alto nivel a través de toda la secuencia. Para la inicialización automática del algoritmo se emplearon transformaciones de color y contornos activos con información de flujo del vector gradiente ("GVF snakes" sobre la región labial, mientras que para el seguimiento se usaron medidas de similitud entre vecindarios y restricciones morfológicas definidas en el estándar MPEG-4. Inicialmente, se presenta el diseño del sistema de reconocimiento automático del habla, empleando únicamente información de audio (ASR, mediante Modelos Ocultos de Markov (HMMs y un enfoque de palabra aislada; posteriormente, se muestra el diseño de los sistemas empleando únicamente características de vídeo (VSR, y empleando características de audio y vídeo combinadas (AVSR. Al final se comparan los resultados de los tres sistemas para una base de datos propia en español y francés, y se muestra la influencia del ruido acústico, mostrando que el sistema de AVSR es más robusto que ASR y VSR.We present the development of an automatic audiovisual speech recognition system focused on the recognition of commands. Signal audio representation was done using Mel cepstral coefficients and their first and second order time derivatives. In order to characterize the video signal, a set of high-level visual features was tracked throughout the sequences. Automatic initialization of the algorithm was performed using color transformations and active contour models based on Gradient Vector Flow (GVF Snakes on the lip region, whereas visual tracking used similarity measures across neighborhoods and morphological

  1. A influência do ambiente audiovisual na legendação de filmes

    Directory of Open Access Journals (Sweden)

    Antonia Célia Ribeiro Nobre

    2002-01-01

    Full Text Available Este artigo mostra como a legendação é influenciada por muitos fatores presentes dentro do ambiente audiovisual devido, sobretudo, à função comunicativa audiovisual, à composição semiótica, à mecânica da legendação, e às visões e ao comportamento das pessoas envolvidas na produção audiovisual, na tradução e na distribuição, na crítica e no público.This article shows how subtitling is influenced by many factors among the audiovisual environment, due primarily to the audiovisuals communicative function and semiotic composition; the mechanics of subtitling; and the views and behavior of people involved with the audiovisuals production, translation and distribution, the critics and the public.

  2. Academic e-learning experience in the enhancement of open access audiovisual and media education

    OpenAIRE

    Pacholak, Anna; Sidor, Dorota

    2015-01-01

    The paper presents how the academic e-learning experience and didactic methods of the Centre for Open and Multimedia Education (COME UW), University of Warsaw, enhance the open access to audiovisual and media education at various levels of education. The project is implemented within the Audiovisual and Media Education Programme (PEAM). It is funded by the Polish Film Institute (PISF). The aim of the project is to create a proposal of a comprehensive and open programme for the audiovisual (me...

  3. Media and journalism as forms of knowledge: a methodology for critical reading of journalistic audiovisual narratives

    OpenAIRE

    Beatriz Becker

    2012-01-01

    The work presents a methodology for the analysis of journalistic audiovisual narratives, and instrument of critical reading of news contents and formats which utilize audiovisual language and multimedia resources on TV and on the web. It is assumed that the comprehension of the dynamic combinations of the elements which constitute the audiovisual text contributes to a better perception of the meanings of the news, and that uses of the digital tools in a critical and creative way can collabora...

  4. Music expertise shapes audiovisual temporal integration windows for speech, sinewave speech, and music

    OpenAIRE

    Lee, Hweeling; Noppeney, Uta

    2014-01-01

    This psychophysics study used musicians as a model to investigate whether musical expertise shapes the temporal integration window for audiovisual speech, sinewave speech, or music. Musicians and non-musicians judged the audiovisual synchrony of speech, sinewave analogs of speech, and music stimuli at 13 audiovisual stimulus onset asynchronies (±360, ±300 ±240, ±180, ±120, ±60, and 0 ms). Further, we manipulated the duration of the stimuli by presenting sentences/melodies or syllables/tones. ...

  5. The role of visual spatial attention in audiovisual speech perception

    DEFF Research Database (Denmark)

    Andersen, Tobias; Tiippana, K.; Laarni, J.;

    2009-01-01

    recent reports have challenged this view. Here we study the effect of visual spatial attention on the McGurk effect. By presenting a movie of two faces symmetrically displaced to each side of a central fixation point and dubbed with a single auditory speech track, we were able to discern the influences......Auditory and visual information is integrated when perceiving speech, as evidenced by the McGurk effect in which viewing an incongruent talking face categorically alters auditory speech perception. Audiovisual integration in speech perception has long been considered automatic and pre-attentive but...... from each of the faces and from the voice on the auditory speech percept. We found that directing visual spatial attention towards a face increased the influence of that face on auditory perception. However, the influence of the voice on auditory perception did not change suggesting that audiovisual...

  6. Cross-modal cueing in audiovisual spatial attention

    OpenAIRE

    Blurton, Steven Paul; Mark W Greenlee; Gondan, Matthias

    2015-01-01

    Visual processing is most effective at the location of our attentional focus. It has long been known that various spatial cues can direct visuospatial attention and influence the detection of auditory targets. Cross-modal cueing, however, seems to depend on the type of the visual cue: facilitation effects have been reported for endogenous visual cues while exogenous cues seem to be mostly ineffective. In three experiments, we investigated cueing effects on the processing of audiovisual signal...

  7. Compliments in Audiovisual Translation – issues in character identity

    OpenAIRE

    Isabel Fernandes Silva; Jane Rodrigues Duarte

    2011-01-01

    Over the last decades, audiovisual translation has gained increased significance in Translation Studies as well as an interdisciplinary subject within other fields (media, cinema studies etc). Although many articles have been published on communicative aspects of translation such as politeness, only recently have scholars taken an interest in the translation of compliments. This study will focus on both these areas from a multimodal and pragmatic perspective, emphasizing the links between the...

  8. Neural correlates of quality during perception of audiovisual stimuli

    CERN Document Server

    Arndt, Sebastian

    2016-01-01

    This book presents a new approach to examining perceived quality of audiovisual sequences. It uses electroencephalography to understand how exactly user quality judgments are formed within a test participant, and what might be the physiologically-based implications when being exposed to lower quality media. The book redefines experimental paradigms of using EEG in the area of quality assessment so that they better suit the requirements of standard subjective quality testings. Therefore, experimental protocols and stimuli are adjusted accordingly. .

  9. Audiovisual correspondence between musical timbre and visual shapes.

    OpenAIRE

    Mohammad Adeli; Stéphane Molotchnikoff

    2014-01-01

    This article investigates the cross-modal correspondences between musical timbre and shapes. Previously, such features as pitch, loudness, light intensity, visual size, and color characteristics have mostly been used in studies of audio-visual correspondences. Moreover, in most studies, simple stimuli e.g. simple tones have been utilized. In this experiment, 23 musical sounds varying in fundamental frequency and timbre but fixed in loudness were used. Each sound was presented once against col...

  10. Audiovisual correspondence between musical timbre and visual shapes

    OpenAIRE

    Adeli, Mohammad; Rouat, Jean; Molotchnikoff, Stéphane

    2014-01-01

    This article investigates the cross-modal correspondences between musical timbre and shapes. Previously, such features as pitch, loudness, light intensity, visual size, and color characteristics have mostly been used in studies of audio-visual correspondences. Moreover, in most studies, simple stimuli e.g., simple tones have been utilized. In this experiment, 23 musical sounds varying in fundamental frequency and timbre but fixed in loudness were used. Each sound was presented once against co...

  11. The Role of Visual Spatial Attention in Audiovisual Speech Perception

    OpenAIRE

    Andersen, Tobias; Tiippana, K.; Laarni, J.; Kojo, I.; Sams, M.

    2008-01-01

    Auditory and visual information is integrated when perceiving speech, as evidenced by the McGurk effect in which viewing an incongruent talking face categorically alters auditory speech perception. Audiovisual integration in speech perception has long been considered automatic and pre-attentive but recent reports have challenged this view. Here we study the effect of visual spatial attention on the McGurk effect. By presenting a movie of two faces symmetrically displaced to each side of a cen...

  12. Model-based assessment of factors influencing categorical audiovisual pereception

    OpenAIRE

    Andersen, Tobias S.

    2005-01-01

    Information processing in the sensory modalities is not segregated but interacts strongly. The exact nature of this interaction is not known and might differ for different multisensory phenomena. Here, we investigate two cases of categorical audiovisual perception: speech perception and the perception of rapid flashes and beeps. It is known that multisensory interactions in general depend on physical factors, such as information reliability and modality appropriateness, but it is not know...

  13. Good practices in audiovisual diversity. Hype or hope?

    OpenAIRE

    García Leiva, María Trinidad; Segovia, Ana I.

    2014-01-01

    Research conducted on the audiovisual industry within the context of the Convention on the Protection and Promotion of the Diversity of Cultural Expressions (UNESCO, 2005) lends weight to the idea that exclusively applying market logic to the field of culture poses a threat to its diversity. It is therefore necessary to identify and foster practices to implement from the public sphere. The question, then, is how to define such practices. The Convention uses the term 'best practice' within a s...

  14. Phase Synchronization in Human EEG During Audio-Visual Stimulation

    Czech Academy of Sciences Publication Activity Database

    Teplan, M.; Šušmáková, K.; Paluš, Milan; Vejmelka, Martin

    2009-01-01

    Roč. 28, - (2009), s. 80-84. ISSN 1536-8378 Grant ostatní: Bilateral project between Slovak AS and AS CR(CZ-SK) Modern methods for evaluation of electrophysiological signals Source of funding: V - iné verejné zdroje Keywords : synchronization * EEG * wavelet * audio-visual stimulation Subject RIV: FH - Neurology Impact factor: 0.729, year: 2009

  15. Audiovisual distraction reduces pain perception during aural microsuction

    OpenAIRE

    Choudhury, N.; Amer, I; Daniels, M; Wareing, MJ

    2013-01-01

    Introduction Aural microsuction is a common ear, nose and throat procedure used in the outpatient setting. Some patients, however, find it difficult to tolerate owing to discomfort, pain or noise. This study evaluated the effect of audiovisual distraction on patients’ pain perception and overall satisfaction. Methods A prospective study was conducted for patients attending our aural care clinic requiring aural toileting of bilateral mastoid cavities over a three-month period. All microsuction...

  16. Audiovisual Services in Korea : Market Development and Policies

    OpenAIRE

    Song, Yeongkwan

    2012-01-01

    This paper reviews economic development and the regulatory environment of audiovisual services in the Republic of Korea (hereafter, Korea). The paper specifically examines motion pictures and broadcasting, and discusses what drives or hinders the sector’s trade potential. Korean motion pictures have benefited greatly from the elimination of government censorship, substantial investment capital, especially from the 1990s, and frequent invitations from prestigious international movie festi...

  17. The development of the perception of audiovisual simultaneity.

    Science.gov (United States)

    Chen, Yi-Chuan; Shore, David I; Lewis, Terri L; Maurer, Daphne

    2016-06-01

    We measured the typical developmental trajectory of the window of audiovisual simultaneity by testing four age groups of children (5, 7, 9, and 11 years) and adults. We presented a visual flash and an auditory noise burst at various stimulus onset asynchronies (SOAs) and asked participants to report whether the two stimuli were presented at the same time. Compared with adults, children aged 5 and 7 years made more simultaneous responses when the SOAs were beyond ± 200 ms but made fewer simultaneous responses at the 0 ms SOA. The point of subjective simultaneity was located at the visual-leading side, as in adults, by 5 years of age, the youngest age tested. However, the window of audiovisual simultaneity became narrower and response errors decreased with age, reaching adult levels by 9 years of age. Experiment 2 ruled out the possibility that the adult-like performance of 9-year-old children was caused by the testing of a wide range of SOAs. Together, the results demonstrate that the adult-like precision of perceiving audiovisual simultaneity is developed by 9 years of age, the youngest age that has been reported to date. PMID:26897264

  18. Audiovisual integration of speech falters under high attention demands.

    Science.gov (United States)

    Alsius, Agnès; Navarra, Jordi; Campbell, Ruth; Soto-Faraco, Salvador

    2005-05-10

    One of the most commonly cited examples of human multisensory integration occurs during exposure to natural speech, when the vocal and the visual aspects of the signal are integrated in a unitary percept. Audiovisual association of facial gestures and vocal sounds has been demonstrated in nonhuman primates and in prelinguistic children, arguing for a general basis for this capacity. One critical question, however, concerns the role of attention in such multisensory integration. Although both behavioral and neurophysiological studies have converged on a preattentive conceptualization of audiovisual speech integration, this mechanism has rarely been measured under conditions of high attentional load, when the observers' attention resources are depleted. We tested the extent to which audiovisual integration was modulated by the amount of available attentional resources by measuring the observers' susceptibility to the classic McGurk illusion in a dual-task paradigm. The proportion of visually influenced responses was severely, and selectively, reduced if participants were concurrently performing an unrelated visual or auditory task. In contrast with the assumption that crossmodal speech integration is automatic, our results suggest that these multisensory binding processes are subject to attentional demands. PMID:15886102

  19. Temporal structure and complexity affect audio-visual correspondence detection

    Directory of Open Access Journals (Sweden)

    Rachel N Denison

    2013-01-01

    Full Text Available Synchrony between events in different senses has long been considered the critical temporal cue for multisensory integration. Here, using rapid streams of auditory and visual events, we demonstrate how humans can use temporal structure (rather than mere temporal coincidence to detect multisensory relatedness. We find psychophysically that participants can detect matching auditory and visual streams via shared temporal structure for crossmodal lags of up to 200 ms. Performance on this task reproduced features of past findings based on explicit timing judgments but did not show any special advantage for perfectly synchronous streams. Importantly, the complexity of temporal patterns influences sensitivity to correspondence. Stochastic, irregular streams – with richer temporal pattern information – led to higher audio-visual matching sensitivity than predictable, rhythmic streams. Our results reveal that temporal structure and its complexity are key determinants for human detection of audio-visual correspondence. The distinctive emphasis of our new paradigms on temporal patterning could be useful for studying special populations with suspected abnormalities in audio-visual temporal perception and multisensory integration.

  20. Musical expertise induces audiovisual integration of abstract congruency rules.

    Science.gov (United States)

    Paraskevopoulos, Evangelos; Kuchenbuch, Anja; Herholz, Sibylle C; Pantev, Christo

    2012-12-12

    Perception of everyday life events relies mostly on multisensory integration. Hence, studying the neural correlates of the integration of multiple senses constitutes an important tool in understanding perception within an ecologically valid framework. The present study used magnetoencephalography in human subjects to identify the neural correlates of an audiovisual incongruency response, which is not generated due to incongruency of the unisensory physical characteristics of the stimulation but from the violation of an abstract congruency rule. The chosen rule-"the higher the pitch of the tone, the higher the position of the circle"-was comparable to musical reading. In parallel, plasticity effects due to long-term musical training on this response were investigated by comparing musicians to non-musicians. The applied paradigm was based on an appropriate modification of the multifeatured oddball paradigm incorporating, within one run, deviants based on a multisensory audiovisual incongruent condition and two unisensory mismatch conditions: an auditory and a visual one. Results indicated the presence of an audiovisual incongruency response, generated mainly in frontal regions, an auditory mismatch negativity, and a visual mismatch response. Moreover, results revealed that long-term musical training generates plastic changes in frontal, temporal, and occipital areas that affect this multisensory incongruency response as well as the unisensory auditory and visual mismatch responses. PMID:23238733

  1. Montagem e remontagem na produção audiovisual de Guel Arraes

    Directory of Open Access Journals (Sweden)

    Yvana Fechine

    2008-11-01

    Full Text Available As minisséries O auto da Compadecida (1999 e A invenção do Brasil (2000, produzidas por Guel Arraes para a TV e, posteriormente, reeditadas e distribuídas como filme um ano depois de sua exibição pela Rede Globo, inauguraram uma nova lógica de produção no mercado audiovisual brasileiro. A transformação dessas minisséries em filmes não pode, no entanto, ser pensada como adaptação, pois o que temos, a partir do mesmo material anteriormente gravado, é um processo de "remontagem". Haveria, então, um tipo de montagem inerente a tais produtos audiovisuais, pensados, já na origem, para o trânsito entre meios? O presente artigo discute a questão e propõe que o caminho encontrado por Guel Arraes para obter esses resultados do tipo "dois em um", que "funcionam" tanto como programa de TV, quanto como filme, foi o apelo ao que descreveremos como "montagem em módulos". Palavras-chave televisão, filme, montagem Abstract The TV series O auto da Compadecida (1999 and A invenção do Brasil (2000, produced by Guel Arraes, and reedited and distributed as film one year after their exhibition on Rede Globo, introduced a new logic of production into the Brazilian audiovisual market. The transformation of these series into films cannot, however, be seen as an adaptation, even though the same recorded material is used in the process of re-editing. Would there, therefore, be a type of editing (montage inherent to these audiovisual products destined to transit between the two kinds of media, television and film? The present article discusses the issue and proposes that the way which Guel Arraes found to reach these results – in the "two-in-one" type, which "work" equally well as a television program and as a film – was what we can describe as editing (montage in modules. Key words television, film, editing

  2. Influence of audiovisuals and food samples on consumer acceptance of food irradiation

    International Nuclear Information System (INIS)

    The effects of audiovisual presentation on consumers' knowledge and attitudes toward food irradiation were demonstrated. Food irradiation is a method of food preservation that can destroy the microorganisms responsible for many foodborne illnesses and food spoilage. However, the food industry has been slow to adopt this method because it is unsure of consumer acceptance. One hundred and seventy-nine consumers were given a slide-tape presentation on food irradiation. Test subjects were also presented with a sample of irradiated strawberries. It was found that participants knew more about and were more positive toward food irradiation following the educational program. These findings demonstrate the value of educational materials in influencing the food preferences of consumers

  3. A Model for Producing and Sharing Instructional Materials in Veterinary Medicine. Final Report.

    Science.gov (United States)

    Ward, Billy C.; Niec, Alphonsus P.

    This report describes a study of factors which appear to influence the "shareability" of audiovisual materials in the field of veterinary medicine. Specific factors addressed are content quality, instructional effectiveness, technical quality, institutional support, organization, logistics, and personal attitudes toward audiovisuals. (Author/CO)

  4. Something for Everyone? An Evaluation of the Use of Audio-Visual Resources in Geographical Learning in the UK.

    Science.gov (United States)

    McKendrick, John H.; Bowden, Annabel

    1999-01-01

    Reports from a survey of geographers that canvassed experiences using audio-visual resources to support teaching. Suggests that geographical learning has embraced audio-visual resources and that they are employed effectively. Concludes that integration of audio-visual resources into mainstream curriculum is essential to ensure effective and…

  5. Effect of Sertraline on Current-Source Distribution of the High Beta Frequency Band: Analysis of Electroencephalography under Audiovisual Erotic Stimuli in Healthy, Right-Handed Males

    OpenAIRE

    Lee, Seung Hyun; Hyun, Jae Seog; Kwon, Oh-Young

    2010-01-01

    Purpose The purpose of this study was to examine the cerebral changes in high beta frequency oscillations (22-30 Hz) induced by sertraline and by audiovisual erotic stimuli in healthy adult males. Materials and Methods Scalp electroencephalographies (EEGs) were conducted twice in 11 healthy, right-handed males, once before sertraline intake and again 4 hours thereafter. The EEGs included four sessions recorded sequentially while the subjects were resting, watching a music video, resting, and ...

  6. Propuesta para la creación de una empresa del sector audiovisual

    OpenAIRE

    Muniozguren Gomez, Angela

    2014-01-01

    El treball de Salón Olimpia presenta una aproximació teòrica a la creació d'una empresa del sector audiovisual. Aquesta empresa es dedica a la promoció de videos amteurs i informació sobre beques i festivals audiovisuals, disposant d'una borsa de treball de gestió privada.

  7. THE PSYCHOLOGY OF THE USE OF AUDIO-VISUAL AIDS IN PRIMARY EDUCATION. MONOGRAPHS ON EDUCATION.

    Science.gov (United States)

    MIALARET, G.

    THIS DOCUMENT IS INTENDED PRIMARILY FOR TEACHERS OF PSYCHOLOGY AND EDUCATION IN TEACHER TRAINING CENTERS, RESEARCHERS, AND EDUCATORS INTERESTED IN THE EFFECTIVE USE OF AUDIOVISUAL AIDS. NEW TYPES OF PUPIL AND TEACHER BEHAVIOR IN RESPONSE TO NEW AUDIOVISUAL TECHNIQUES ARE EXAMINED. ONLY TECHNIQUES CONSTANTLY AT THE DISPOSAL OF THE CLASSROOM TEACHER…

  8. Read My Lips: Brain Dynamics Associated with Audiovisual Integration and Deviance Detection.

    Science.gov (United States)

    Tse, Chun-Yu; Gratton, Gabriele; Garnsey, Susan M; Novak, Michael A; Fabiani, Monica

    2015-09-01

    Information from different modalities is initially processed in different brain areas, yet real-world perception often requires the integration of multisensory signals into a single percept. An example is the McGurk effect, in which people viewing a speaker whose lip movements do not match the utterance perceive the spoken sounds incorrectly, hearing them as more similar to those signaled by the visual rather than the auditory input. This indicates that audiovisual integration is important for generating the phoneme percept. Here we asked when and where the audiovisual integration process occurs, providing spatial and temporal boundaries for the processes generating phoneme perception. Specifically, we wanted to separate audiovisual integration from other processes, such as simple deviance detection. Building on previous work employing ERPs, we used an oddball paradigm in which task-irrelevant audiovisually deviant stimuli were embedded in strings of non-deviant stimuli. We also recorded the event-related optical signal, an imaging method combining spatial and temporal resolution, to investigate the time course and neuroanatomical substrate of audiovisual integration. We found that audiovisual deviants elicit a short duration response in the middle/superior temporal gyrus, whereas audiovisual integration elicits a more extended response involving also inferior frontal and occipital regions. Interactions between audiovisual integration and deviance detection processes were observed in the posterior/superior temporal gyrus. These data suggest that dynamic interactions between inferior frontal cortex and sensory regions play a significant role in multimodal integration. PMID:25848682

  9. On the relevance of script writing basics in audiovisual translation practice and training

    Directory of Open Access Journals (Sweden)

    Juan José Martínez-Sierra

    2012-07-01

    Full Text Available http://dx.doi.org/10.5007/2175-7968.2012v1n29p145 Audiovisual texts possess characteristics that clearly differentiate audiovisual translation from both oral and written translation, and prospective screen translators are usually taught about the issues that typically arise in audiovisual translation. This article argues for the development of an interdisciplinary approach that brings together Translation Studies and Film Studies, which would prepare future audiovisual translators to work with the nature and structure of a script in mind, in addition to the study of common and diverse translational aspects. Focusing on film, the article briefly discusses the nature and structure of scripts, and identifies key points in the development and structuring of a plot. These key points and various potential hurdles are illustrated with examples from the films Chinatown and La habitación de Fermat. The second part of this article addresses some implications for teaching audiovisual translation.

  10. La regulación audiovisual: argumentos a favor y en contra The audio-visual regulation: the arguments for and against

    Directory of Open Access Journals (Sweden)

    Jordi Sopena Palomar

    2008-03-01

    Full Text Available El artículo analiza la efectividad de la regulación audiovisual y valora los diversos argumentos a favor y en contra de la existencia de consejos reguladores a nivel estatal. El debate sobre la necesidad de un organismo de este calado en España todavía persiste. La mayoría de los países comunitarios se han dotado de consejos competentes en esta materia, como es el caso del OFCOM en el Reino Unido o el CSA en Francia. En España, la regulación audiovisual se limita a organismos de alcance autonómico, como son el Consejo Audiovisual de Navarra, el de Andalucía y el Consell de l’Audiovisual de Catalunya (CAC, cuyo modelo también es abordado en este artículo. The article analyzes the effectiveness of the audio-visual regulation and assesses the different arguments for and against the existence of the broadcasting authorities at the state level. The debate of the necessity of a Spanish organism of regulation is still active. Most of the European countries have created some competent authorities, like the OFCOM in United Kingdom and the CSA in France. In Spain, the broadcasting regulation is developed by regional organisms, like the Consejo Audiovisual de Navarra, the Consejo Audiovisual de Andalucía and the Consell de l’Audiovisual de Catalunya (CAC, whose case is also studied in this article.

  11. Development of sensitivity to audiovisual temporal asynchrony during midchildhood.

    Science.gov (United States)

    Kaganovich, Natalya

    2016-02-01

    Temporal proximity is one of the key factors determining whether events in different modalities are integrated into a unified percept. Sensitivity to audiovisual temporal asynchrony has been studied in adults in great detail. However, how such sensitivity matures during childhood is poorly understood. We examined perception of audiovisual temporal asynchrony in 7- to 8-year-olds, 10- to 11-year-olds, and adults by using a simultaneity judgment task (SJT). Additionally, we evaluated whether nonverbal intelligence, verbal ability, attention skills, or age influenced children's performance. On each trial, participants saw an explosion-shaped figure and heard a 2-kHz pure tone. These occurred at the following stimulus onset asynchronies (SOAs): 0, 100, 200, 300, 400, and 500 ms. In half of all trials, the visual stimulus appeared first (VA condition), and in the other half, the auditory stimulus appeared first (AV condition). Both groups of children were significantly more likely than adults to perceive asynchronous events as synchronous at all SOAs exceeding 100 ms, in both VA and AV conditions. Furthermore, only adults exhibited a significant shortening of reaction time (RT) at long SOAs compared to medium SOAs. Sensitivities to the VA and AV temporal asynchronies showed different developmental trajectories, with 10- to 11-year-olds outperforming 7- to 8-year-olds at the 300- to 500-ms SOAs, but only in the AV condition. Lastly, age was the only predictor of children's performance on the SJT. These results provide an important baseline against which children with developmental disorders associated with impaired audiovisual temporal function-such as autism, specific language impairment, and dyslexia-may be compared. PMID:26569563

  12. Visual Mislocalization of Moving Objects in an Audiovisual Event.

    Directory of Open Access Journals (Sweden)

    Yousuke Kawachi

    Full Text Available The present study investigated the influence of an auditory tone on the localization of visual objects in the stream/bounce display (SBD. In this display, two identical visual objects move toward each other, overlap, and then return to their original positions. These objects can be perceived as either streaming through or bouncing off each other. In this study, the closest distance between object centers on opposing trajectories and tone presentation timing (none, 0 ms, ± 90 ms, and ± 390 ms relative to the instant for the closest distance were manipulated. Observers were asked to judge whether the two objects overlapped with each other and whether the objects appeared to stream through, bounce off each other, or reverse their direction of motion. A tone presented at or around the instant of the objects' closest distance biased judgments toward "non-overlapping," and observers overestimated the physical distance between objects. A similar bias toward direction change judgments (bounce and reverse, not stream judgments was also observed, which was always stronger than the non-overlapping bias. Thus, these two types of judgments were not always identical. Moreover, another experiment showed that it was unlikely that this observed mislocalization could be explained by other previously known mislocalization phenomena (i.e., representational momentum, the Fröhlich effect, and a turn-point shift. These findings indicate a new example of crossmodal mislocalization, which can be obtained without temporal offsets between audiovisual stimuli. The mislocalization effect is also specific to a more complex stimulus configuration of objects on opposing trajectories, with a tone that is presented simultaneously. The present study promotes an understanding of relatively complex audiovisual interactions beyond simple one-to-one audiovisual stimuli used in previous studies.

  13. Bayesian calibration of simultaneity in audiovisual temporal order judgments.

    Directory of Open Access Journals (Sweden)

    Shinya Yamamoto

    Full Text Available After repeated exposures to two successive audiovisual stimuli presented in one frequent order, participants eventually perceive a pair separated by some lag time in the same order as occurring simultaneously (lag adaptation. In contrast, we previously found that perceptual changes occurred in the opposite direction in response to tactile stimuli, conforming to bayesian integration theory (bayesian calibration. We further showed, in theory, that the effect of bayesian calibration cannot be observed when the lag adaptation was fully operational. This led to the hypothesis that bayesian calibration affects judgments regarding the order of audiovisual stimuli, but that this effect is concealed behind the lag adaptation mechanism. In the present study, we showed that lag adaptation is pitch-insensitive using two sounds at 1046 and 1480 Hz. This enabled us to cancel lag adaptation by associating one pitch with sound-first stimuli and the other with light-first stimuli. When we presented each type of stimulus (high- or low-tone in a different block, the point of simultaneity shifted to "sound-first" for the pitch associated with sound-first stimuli, and to "light-first" for the pitch associated with light-first stimuli. These results are consistent with lag adaptation. In contrast, when we delivered each type of stimulus in a randomized order, the point of simultaneity shifted to "light-first" for the pitch associated with sound-first stimuli, and to "sound-first" for the pitch associated with light-first stimuli. The results clearly show that bayesian calibration is pitch-specific and is at work behind pitch-insensitive lag adaptation during temporal order judgment of audiovisual stimuli.

  14. Action-outcome learning and prediction shape the window of simultaneity of audiovisual outcomes.

    Science.gov (United States)

    Desantis, Andrea; Haggard, Patrick

    2016-08-01

    To form a coherent representation of the objects around us, the brain must group the different sensory features composing these objects. Here, we investigated whether actions contribute in this grouping process. In particular, we assessed whether action-outcome learning and prediction contribute to audiovisual temporal binding. Participants were presented with two audiovisual pairs: one pair was triggered by a left action, and the other by a right action. In a later test phase, the audio and visual components of these pairs were presented at different onset times. Participants judged whether they were simultaneous or not. To assess the role of action-outcome prediction on audiovisual simultaneity, each action triggered either the same audiovisual pair as in the learning phase ('predicted' pair), or the pair that had previously been associated with the other action ('unpredicted' pair). We found the time window within which auditory and visual events appeared simultaneous increased for predicted compared to unpredicted pairs. However, no change in audiovisual simultaneity was observed when audiovisual pairs followed visual cues, rather than voluntary actions. This suggests that only action-outcome learning promotes temporal grouping of audio and visual effects. In a second experiment we observed that changes in audiovisual simultaneity do not only depend on our ability to predict what outcomes our actions generate, but also on learning the delay between the action and the multisensory outcome. When participants learned that the delay between action and audiovisual pair was variable, the window of audiovisual simultaneity for predicted pairs increased, relative to a fixed action-outcome pair delay. This suggests that participants learn action-based predictions of audiovisual outcome, and adapt their temporal perception of outcome events based on such predictions. PMID:27131076

  15. Search for Structure in Audiovisual Recordings of Lectures and Conferences

    Czech Academy of Sciences Publication Activity Database

    Kopp, M.; Pulc, P.; Holeňa, Martin

    Aachen & Charleston: Technical University & CreateSpace Independent Publishing Platform, 2015 - (Yaghob, J.), s. 150-158. (CEUR Workshop Proceedings. V-1422). ISBN 978-1-5151-2065-0. ISSN 1613-0073. [ITAT 2015. Conference on Theory and Practice of Information Technologies /15./. Slovenský Raj (SK), 17.09.2015-21.09.2015] R&D Projects: GA ČR GA13-17187S Grant ostatní: GA MŠk(CZ) LM2010005 Institutional support: RVO:67985807 Keywords : multimedial data * audiovisual recordings * self-organizing map * hierarchical clustering * cluster size Subject RIV: IN - Informatics, Computer Science

  16. Faculty attitudes toward the use of audiovisuals in continuing education.

    Science.gov (United States)

    Schindler, M K; Port, J

    1980-11-01

    A study was undertaken in planning for a project involving library support for formal continuing education programs. A questionnaire survey assessed faculty attitudes toward continuing education activities, self-instructional AV programs for continuing education, and self-instructional AV programs for undergraduate medical education. Actual use of AV programs in both undergraduate and postgraduate classroom teaching was also investigated. The results indicated generally positive attitudes regarding a high level of classroom use of AV programs, but little assignment of audiovisuals for self-instruction. PMID:6162840

  17. Proyecto educativo : herramientas de educación audiovisual

    OpenAIRE

    Boza Osuna, Luis

    2005-01-01

    El objeto de este trabajo es examinar la necesidad de informar y formar en educación audiovisual a familias, alumnos y profesores. Desde 1999, Telespectadores Asociados de Cataluña (TAC) decidió apostar decididamente por acercarse al mundo educativo, para dar respuesta a la evidente necesidad de las instituciones educativas de plantar cara a los efectos negativos de la televisión en los alumnos. Los directivos y profesionales de la enseñanza son perfectamente conscientes de la competencia des...

  18. A comparative study of approaches to audiovisual translation

    OpenAIRE

    Aldea, Silvia

    2016-01-01

    For those who are not new to the world of Japanese animation, known mainly as anime, the debate of "dub vs. sub" is by no means anything out of the ordinary, but rather a very heated argument amongst fans. The study will focus on the differences in the US English version between the two approaches of translating audio-visual media, namely subtitling (official subtitles and fanmade subtitles) and dubbing, in a qualitative context. More precisely, which of the two approaches can store the most ...

  19. Voice activity detection using audio-visual information

    DEFF Research Database (Denmark)

    Petsatodis, Theodore; Pnevmatikakis, Aristodemos; Boukis, Christos

    2009-01-01

    An audio-visual voice activity detector that uses sensors positioned distantly from the speaker is presented. Its constituting unimodal detectors are based on the modeling of the temporal variation of audio and visual features using Hidden Markov Models; their outcomes are fused using a post......-decision scheme. The Mel-Frequency Cepstral Coefficients and the vertical mouth opening are the chosen audio and visual features respectively, both augmented with their first-order derivatives. The proposed system is assessed using far-field recordings from four different speakers and under various levels of...

  20. Specialization in audiovisual speech perception: a replication study

    DEFF Research Database (Denmark)

    Eskelund, Kasper; Andersen, Tobias

    , observers might only have been motivated to look at the face when informed and audio and video thus seemed related. Since Tuomainen et al. did not control for this, the influence of motivation is unknown. The current experiment repeated the original methods while controlling eye movements. 4 observers...... observers did look near the mouth. We conclude that eye-movements did not influence the results of Tuomainen et al. and that their results thus can be taken as evidence of a speech specific mode of audiovisual integration underlying the McGurk illusion....

  1. Contribució de continguts audiovisuals per IP

    OpenAIRE

    Lopez Perez, Aron

    2008-01-01

    Aquest projecte sobre “Distribució de continguts Audiovisuals per IP” té com a objectius substituir les infraestructures actuals de vídeo (distribució de continguts mitjançant satèl·lits) per la utilització eficient de les xarxes basades en tecnologia IP, proporcionant una solució integral per al transport segur de continguts multimèdia professionals. Aquest projecte s’ha portat a terme per un grup de televisions de Catalunya, València i les Illes Balears. Per aconseguir aquests objectius,...

  2. Researching embodied learning by using videographic participation for data collection and audiovisual narratives for dissemination - illustrated by the encounter between two acrobats

    DEFF Research Database (Denmark)

    Degerbøl, Stine; Svendler Nielsen, Charlotte

    2015-01-01

    qualitative research and presents a case from contemporary circus education examining embodied learning, whereas the particular focus in this article is methodology and the development of a dissemination strategy for empirical material generated through videographic participation. Drawing on contributions......The article concerns doing ethnography in education and it reflects upon using 'videographic participation' for data collection and the concept of 'audiovisual narratives' for dissemination, which is inspired by the idea of developing academic video. The article takes a narrative approach to...... concerned with the senses from the field of sport sciences and from the field of visual anthropology and sensory ethnography, the article concludes that using videographic participation and creating audiovisual narratives might be a good option to capture the multisensuous dimensions of a learning situation...

  3. Compliments in Audiovisual Translation – issues in character identity

    Directory of Open Access Journals (Sweden)

    Isabel Fernandes Silva

    2011-12-01

    Full Text Available Over the last decades, audiovisual translation has gained increased significance in Translation Studies as well as an interdisciplinary subject within other fields (media, cinema studies etc. Although many articles have been published on communicative aspects of translation such as politeness, only recently have scholars taken an interest in the translation of compliments. This study will focus on both these areas from a multimodal and pragmatic perspective, emphasizing the links between these fields and how this multidisciplinary approach will evidence the polysemiotic nature of the translation process. In Audiovisual Translation both text and image are at play, therefore, the translation of speech produced by the characters may either omit (because it is provided by visualgestual signs or it may emphasize information. A selection was made of the compliments present in the film What Women Want, our focus being on subtitles which did not successfully convey the compliment expressed in the source text, as well as analyze the reasons for this, namely difference in register, Culture Specific Items and repetitions. These differences lead to a different portrayal/identity/perception of the main character in the English version (original soundtrack and subtitled versions in Portuguese and Italian.

  4. A imagem-ritmo e o videoclipe no audiovisual

    Directory of Open Access Journals (Sweden)

    Felipe de Castro Muanis

    2012-12-01

    Full Text Available A televisão pode ser um espaço de reunião entre som e imagem em um dispositivo que possibilita a imagem-ritmo – dando continuidade à teoria da imagem de Gilles Deleuze, proposta para o cinema. Ela agregaria, simultaneamente, ca-racterísticas da imagem-movimento e da imagem-tempo, que se personificariam na construção de imagens pós-modernas, em produtos audiovisuais não necessariamente narrativos, porém populares. Filmes, videogames, videoclipes e vinhetas em que a música conduz as imagens permitiriam uma leitura mais sensorial. O audiovisual como imagem-música abre, assim, para uma nova forma de percepção além da textual tradicional, fruto da interação entre ritmo, texto e dispositivo. O tempo das imagens em movimento no audiovisual está atrelado inevitável e prioritariamente ao som. Elas agregam possibilidades não narrativas que se realizam, na maioria das vezes, sobre a lógica do ritmo musical, so-bressaindo-se como um valor fundamental, observado nos filmes Sem Destino (1969, Assassinos por Natureza (1994 e Corra Lola Corra (1998.

  5. Temporal processing of audiovisual stimuli is enhanced in musicians: evidence from magnetoencephalography (MEG.

    Directory of Open Access Journals (Sweden)

    Yao Lu

    Full Text Available Numerous studies have demonstrated that the structural and functional differences between professional musicians and non-musicians are not only found within a single modality, but also with regard to multisensory integration. In this study we have combined psychophysical with neurophysiological measurements investigating the processing of non-musical, synchronous or various levels of asynchronous audiovisual events. We hypothesize that long-term multisensory experience alters temporal audiovisual processing already at a non-musical stage. Behaviorally, musicians scored significantly better than non-musicians in judging whether the auditory and visual stimuli were synchronous or asynchronous. At the neural level, the statistical analysis for the audiovisual asynchronous response revealed three clusters of activations including the ACC and the SFG and two bilaterally located activations in IFG and STG in both groups. Musicians, in comparison to the non-musicians, responded to synchronous audiovisual events with enhanced neuronal activity in a broad left posterior temporal region that covers the STG, the insula and the Postcentral Gyrus. Musicians also showed significantly greater activation in the left Cerebellum, when confronted with an audiovisual asynchrony. Taken together, our MEG results form a strong indication that long-term musical training alters the basic audiovisual temporal processing already in an early stage (direct after the auditory N1 wave, while the psychophysical results indicate that musical training may also provide behavioral benefits in the accuracy of the estimates regarding the timing of audiovisual events.

  6. Effect of attentional load on audiovisual speech perception: Evidence from ERPs

    Directory of Open Access Journals (Sweden)

    KaisaTiippana

    2014-07-01

    Full Text Available Seeing articulatory movements influences perception of auditory speech. This is often reflected in a shortened latency of auditory event-related potentials (ERPs generated in the auditory cortex. The present study addressed whether this early neural correlate of audiovisual interaction is modulated by attention. We recorded ERPs in 15 subjects while they were presented with auditory, visual and audiovisual spoken syllables. Audiovisual stimuli consisted of incongruent auditory and visual components known to elicit a McGurk effect, i.e. a visually driven alteration in the auditory speech percept. In a Dual task condition, participants were asked to identify spoken syllables whilst monitoring a rapid visual stream of pictures for targets, i.e., they had to divide their attention. In a Single task condition, participants identified the syllables without any other tasks, i.e., they were asked to ignore the pictures and focus their attention fully on the spoken syllables. The McGurk effect was weaker in the Dual task than in the Single task condition, indicating an effect of attentional load on audiovisual speech perception. Early auditory ERP components, N1 and P2, peaked earlier to audiovisual stimuli than to auditory stimuli when attention was fully focused on syllables, indicating neurophysiological audiovisual interaction. This latency decrement was reduced when attention was loaded, suggesting that attention influences early neural processing of audiovisual speech. We conclude that reduced attention weakens the interaction between vision and audition in speech.

  7. The audiovisual mounting narrative as a basis for the documentary film interactive: news studies

    Directory of Open Access Journals (Sweden)

    Mgs. Denis Porto Renó

    2008-01-01

    Full Text Available This paper presents a literature review and experiment results from pilot-doctoral research "assembly language visual narrative for the documentary film interactive," which defend the thesis that there are features interactive audio and video editing of the movie, even as causing agent of interactivity. The search for interactive audio-visual formats are present in international investigations, but sob glances technology. He believes that this paper is to propose possible formats for interactive audiovisual production film, video, television, computer and cell phone from the postmodern society. Key words: Audiovisual, language, interactivity, cinema interactive, documentary, communication.

  8. Atypical audiovisual speech integration in infants at risk for autism.

    Directory of Open Access Journals (Sweden)

    Jeanne A Guiraud

    Full Text Available The language difficulties often seen in individuals with autism might stem from an inability to integrate audiovisual information, a skill important for language development. We investigated whether 9-month-old siblings of older children with autism, who are at an increased risk of developing autism, are able to integrate audiovisual speech cues. We used an eye-tracker to record where infants looked when shown a screen displaying two faces of the same model, where one face is articulating/ba/and the other/ga/, with one face congruent with the syllable sound being presented simultaneously, the other face incongruent. This method was successful in showing that infants at low risk can integrate audiovisual speech: they looked for the same amount of time at the mouths in both the fusible visual/ga/- audio/ba/and the congruent visual/ba/- audio/ba/displays, indicating that the auditory and visual streams fuse into a McGurk-type of syllabic percept in the incongruent condition. It also showed that low-risk infants could perceive a mismatch between auditory and visual cues: they looked longer at the mouth in the mismatched, non-fusible visual/ba/- audio/ga/display compared with the congruent visual/ga/- audio/ga/display, demonstrating that they perceive an uncommon, and therefore interesting, speech-like percept when looking at the incongruent mouth (repeated ANOVA: displays x fusion/mismatch conditions interaction: F(1,16 = 17.153, p = 0.001. The looking behaviour of high-risk infants did not differ according to the type of display, suggesting difficulties in matching auditory and visual information (repeated ANOVA, displays x conditions interaction: F(1,25 = 0.09, p = 0.767, in contrast to low-risk infants (repeated ANOVA: displays x conditions x low/high-risk groups interaction: F(1,41 = 4.466, p = 0.041. In some cases this reduced ability might lead to the poor communication skills characteristic of autism.

  9. Acid Rain: Resource Materials for Schools.

    Science.gov (United States)

    American Biology Teacher, 1983

    1983-01-01

    Provides listings of acid rain resource material groups under: (1) printed materials (pamphlets, books, articles); (2) audiovisuals (slide/tape presentations, tape, video-cassette); (3) miscellaneous (buttons, pocket lab, umbrella); (4) transparencies; (5) bibliographies; and (6) curriculum materials. Sources and prices (when applicable) are…

  10. Artimate: an articulatory animation framework for audiovisual speech synthesis

    CERN Document Server

    Steiner, Ingmar

    2012-01-01

    We present a modular framework for articulatory animation synthesis using speech motion capture data obtained with electromagnetic articulography (EMA). Adapting a skeletal animation approach, the articulatory motion data is applied to a three-dimensional (3D) model of the vocal tract, creating a portable resource that can be integrated in an audiovisual (AV) speech synthesis platform to provide realistic animation of the tongue and teeth for a virtual character. The framework also provides an interface to articulatory animation synthesis, as well as an example application to illustrate its use with a 3D game engine. We rely on cross-platform, open-source software and open standards to provide a lightweight, accessible, and portable workflow.

  11. Gaze-direction-based MEG averaging during audiovisual speech perception

    Directory of Open Access Journals (Sweden)

    Satu Lamminmäki

    2010-03-01

    Full Text Available To take a step towards real-life-like experimental setups, we simultaneously recorded magnetoencephalographic (MEG signals and subject’s gaze direction during audiovisual speech perception. The stimuli were utterances of /apa/ dubbed onto two side-by-side female faces articulating /apa/ (congruent and /aka/ (incongruent in synchrony, repeated once every 3 s. Subjects (N = 10 were free to decide which face they viewed, and responses were averaged to two categories according to the gaze direction. The right-hemisphere 100-ms response to the onset of the second vowel (N100m’ was a fifth smaller to incongruent than congruent stimuli. The results demonstrate the feasibility of realistic viewing conditions with gaze-based averaging of MEG signals.

  12. Increasing observer objectivity with audio-visual technology: the Sphygmocorder.

    Science.gov (United States)

    Atkins; O'Brien; Wesseling; Guelen

    1997-10-01

    The most fallible component of blood pressure measurement is the human observer. The traditional technique of measuring blood pressure does not allow the result of the measurement to be checked by independent observers, thereby leaving the method open to bias. In the Sphygmocorder, several components used to measure blood pressure have been combined innovatively with audio-visual recording technology to produce a system consisting of a mercury sphygmomanometer, an occluding cuff, an automatic inflation-deflation source, a stethoscope, a microphone capable of detecting Korotkoff sounds, a camcorder and a display screen. The accuracy of the Sphygmocorder against the trained human observer has been confirmed previously using the protocol of the British Hypertension Society and in this article the updated system incorporating a number of innovations is described. PMID:10234128

  13. A Joint Audio-Visual Approach to Audio Localization

    DEFF Research Database (Denmark)

    Jensen, Jesper Rindom; Christensen, Mads Græsbøll

    2015-01-01

    Localization of audio sources is an important research problem, e.g., to facilitate noise reduction. In the recent years, the problem has been tackled using distributed microphone arrays (DMA). A common approach is to apply direction-of-arrival (DOA) estimation on each array (denoted as nodes), and...... then map the DOA estimates to a location. In practice, however, the individual nodes contain few microphones, limiting the DOA estimation accuracy and, thereby, also the localization performance. We investigate a new approach, where range estimates are also obtained and utilized from each node, e.......g., using time-of-flight cameras. Moreover, we propose an optimal method for weighting such DOA and range information for audio localization. Our experiments on both synthetic and real data show that there is a clear, potential advantage of using the joint audiovisual localization framework....

  14. Audiovisual Webjournalism: An analysis of news on UOL News and on TV UERJ Online

    Directory of Open Access Journals (Sweden)

    Leila Nogueira

    2008-06-01

    Full Text Available This work shows the development of audiovisual webjournalism on the Brazilian Internet. This paper, based on the analysis of UOL News on UOL TV – pioneer format on commercial web television - and of UERJ Online TV – first on-line university television in Brazil - investigates the changes in the gathering, production and dissemination processes of audiovisual news when it starts to be transmitted through the web. Reflections of authors such as Herreros (2003, Manovich (2001 and Gosciola (2003 are used to discuss the construction of audiovisual narrative on the web. To comprehend the current changes in today’s webjournalism, we draw on the concepts developed by Fidler (1997; Bolter and Grusin (1998; Machado (2000; Mattos (2002 and Palacios (2003. We may conclude that the organization of narrative elements in cyberspace makes for the efficiency of journalistic messages, while establishing the basis of a particular language for audiovisual news on the Internet.

  15. Speech-specific audiovisual perception affects identification but not detection of speech

    DEFF Research Database (Denmark)

    Eskelund, Kasper; Andersen, Tobias

    Speech perception is audiovisual as evidenced by the McGurk effect in which watching incongruent articulatory mouth movements can change the phonetic auditory speech percept. This type of audiovisual integration may be specific to speech or be applied to all stimuli in general. To investigate this...... audiovisual integration specific to speech perception. However, the results of Tuomainen et al. might have been influenced by another effect. When observers were naïve, they had little motivation to look at the face. When informed, they knew that the face was relevant for the task and this could increase...... noise were measured for naïve and informed participants. We found that the threshold for detecting speech in audiovisual stimuli was lower than for auditory-only stimuli. But there was no detection advantage for observers informed of the speech nature of the auditory signal. This may indicate that...

  16. Strategies for media literacy: Audiovisual skills and the citizenship in Andalusia

    Directory of Open Access Journals (Sweden)

    Ignacio Aguaded-Gómez

    2012-07-01

    Full Text Available Media consumption is an undeniable fact in present-day society. The hours that members of all social segments spend in front of a screen take up a large part of their leisure time worldwide. Audiovisual communication becomes especially important within the context of today’s digital society (society-network, where information and communication technologies pervade all corners of everyday life. However, people do not own enough audiovisual media skills to cope with this mass media omnipresence. Neither the education system nor civic associations, or the media themselves, have promoted audiovisual skills to make people critically competent when viewing media. This study aims to provide an updated conceptualization of the “audiovisual skill” in this digital environment and transpose it onto a specific interventional environment, seeking to detect needs and shortcomings, plan global strategies to be adopted by governments and devise training programmes for the various sectors involved.

  17. Audiovisual quality assessment in communications applications: Current status, trends and challenges

    DEFF Research Database (Denmark)

    Korhonen, Jari

    2010-01-01

    Audiovisual quality assessment is one of the major challenges in multimedia communications. Traditionally, algorithm-based (objective) assessment methods have focused primarily on the compression artifacts. However, compression is only one of the numerous factors influencing the perception. In co...

  18. On the Role of Crossmodal Prediction in Audiovisual Emotion Perception

    Directory of Open Access Journals (Sweden)

    Sarah eJessen

    2013-07-01

    Full Text Available Humans rely on multiple sensory modalities to determine the emotional state of others. In fact, such multisensory perception may be one of the mechanisms explaining the ease and efficiency by which others’ emotions are recognized. But how and when exactly do the different modalities interact? One aspect in multisensory perception that has received increasing interest in recent years is the concept of crossmodal prediction. In emotion perception, as in most other settings, visual information precedes the auditory one. Thereby, leading in visual information can facilitate subsequent auditory processing. While this mechanism has often been described in audiovisual speech perception, it has not been addressed so far in audiovisual emotion perception. Based on the current state of the art in (a crossmodal prediction and (b multisensory emotion perception research, we propose that it is essential to consider the former in order to fully understand the latter. Focusing on electroencephalographic (EEG and magnetoencephalographic (MEG studies, we provide a brief overview of the current research in both fields. In discussing these findings, we suggest that emotional visual information may allow for a more reliable prediction of auditory information compared to non-emotional visual information. In support of this hypothesis, we present a re-analysis of a previous data set that shows an inverse correlation between the N1 response in the EEG and the duration of visual emotional but not non-emotional information. If the assumption that emotional content allows for more reliable predictions can be corroborated in future studies, crossmodal prediction is a crucial factor in our understanding of multisensory emotion perception.

  19. Putative mechanisms mediating tolerance for audiovisual stimulus onset asynchrony.

    Science.gov (United States)

    Bhat, Jyoti; Miller, Lee M; Pitt, Mark A; Shahin, Antoine J

    2015-03-01

    Audiovisual (AV) speech perception is robust to temporal asynchronies between visual and auditory stimuli. We investigated the neural mechanisms that facilitate tolerance for audiovisual stimulus onset asynchrony (AVOA) with EEG. Individuals were presented with AV words that were asynchronous in onsets of voice and mouth movement and judged whether they were synchronous or not. Behaviorally, individuals tolerated (perceived as synchronous) longer AVOAs when mouth movement preceded the speech (V-A) stimuli than when the speech preceded mouth movement (A-V). Neurophysiologically, the P1-N1-P2 auditory evoked potentials (AEPs), time-locked to sound onsets and known to arise in and surrounding the primary auditory cortex (PAC), were smaller for the in-sync than the out-of-sync percepts. Spectral power of oscillatory activity in the beta band (14-30 Hz) following the AEPs was larger during the in-sync than out-of-sync perception for both A-V and V-A conditions. However, alpha power (8-14 Hz), also following AEPs, was larger for the in-sync than out-of-sync percepts only in the V-A condition. These results demonstrate that AVOA tolerance is enhanced by inhibiting low-level auditory activity (e.g., AEPs representing generators in and surrounding PAC) that code for acoustic onsets. By reducing sensitivity to acoustic onsets, visual-to-auditory onset mapping is weakened, allowing for greater AVOA tolerance. In contrast, beta and alpha results suggest the involvement of higher-level neural processes that may code for language cues (phonetic, lexical), selective attention, and binding of AV percepts, allowing for wider neural windows of temporal integration, i.e., greater AVOA tolerance. PMID:25505102

  20. Audiovisual emotional processing and neurocognitive functioning in patients with depression

    Directory of Open Access Journals (Sweden)

    Sophie eDoose-Grünefeld

    2015-01-01

    Full Text Available Alterations in the processing of emotional stimuli (e.g. facial expressions, prosody, music have repeatedly been reported in patients with major depression. Such impairments may result from the likewise prevalent executive deficits in these patients. However, studies investigating this relationship are rare. Moreover, most studies to date have only assessed impairments in unimodal emotional processing, whereas in real life, emotions are primarily conveyed through more than just one sensory channel. The current study therefore aimed at investigating multi-modal emotional processing in patients with depression and to assess the relationship between emotional and neurocognitive impairments. 41 patients suffering from major depression and 41 never-depressed healthy controls participated in an audiovisual (faces-sounds emotional integration paradigm as well as a neurocognitive test battery. Our results showed that depressed patients were specifically impaired in the processing of positive auditory stimuli as they rated faces significantly more fearful when presented with happy than with neutral sounds. Such an effect was absent in controls. Findings in emotional processing in patients did not correlate with BDI-scores. Furthermore, neurocognitive findings revealed significant group differences for two of the tests. The effects found in audiovisual emotional processing, however, did not correlate with performance in the neurocognitive tests.In summary, our results underline the diversity of impairments going along with depression and indicate that deficits found for unimodal emotional processing cannot trivially be generalized to deficits in a multi-modal setting. The mechanisms of impairments therefore might be far more complex than previously thought. Our findings furthermore contradict the assumption that emotional processing deficits in major depression are associated with impaired attention or inhibitory functioning.

  1. Behavioural evidence for separate mechanisms of audiovisual temporal binding as a function of leading sensory modality.

    Science.gov (United States)

    Cecere, Roberto; Gross, Joachim; Thut, Gregor

    2016-06-01

    The ability to integrate auditory and visual information is critical for effective perception and interaction with the environment, and is thought to be abnormal in some clinical populations. Several studies have investigated the time window over which audiovisual events are integrated, also called the temporal binding window, and revealed asymmetries depending on the order of audiovisual input (i.e. the leading sense). When judging audiovisual simultaneity, the binding window appears narrower and non-malleable for auditory-leading stimulus pairs and wider and trainable for visual-leading pairs. Here we specifically examined the level of independence of binding mechanisms when auditory-before-visual vs. visual-before-auditory input is bound. Three groups of healthy participants practiced audiovisual simultaneity detection with feedback, selectively training on auditory-leading stimulus pairs (group 1), visual-leading stimulus pairs (group 2) or both (group 3). Subsequently, we tested for learning transfer (crossover) from trained stimulus pairs to non-trained pairs with opposite audiovisual input. Our data confirmed the known asymmetry in size and trainability for auditory-visual vs. visual-auditory binding windows. More importantly, practicing one type of audiovisual integration (e.g. auditory-visual) did not affect the other type (e.g. visual-auditory), even if trainable by within-condition practice. Together, these results provide crucial evidence that audiovisual temporal binding for auditory-leading vs. visual-leading stimulus pairs are independent, possibly tapping into different circuits for audiovisual integration due to engagement of different multisensory sampling mechanisms depending on leading sense. Our results have implications for informing the study of multisensory interactions in healthy participants and clinical populations with dysfunctional multisensory integration. PMID:27003546

  2. Audio/visual analysis for high-speed TV advertisement detection from MPEG bitstream

    OpenAIRE

    Sadlier, David A.

    2002-01-01

    Advertisement breaks dunng or between television programmes are typically flagged by senes of black-and-silent video frames, which recurrendy occur in order to audio-visually separate individual advertisement spots from one another. It is the regular prevalence of these flags that enables automatic differentiauon between what is programme content and what is advertisement break. Detection of these audio-visual depressions within broadcast television content provides a basis on which advertise...

  3. CONCEPTUAL ASPECTS REGARDING THE SPECIFICS OF MARKETING STRATEGIES IN THE AUDIOVISUAL FIELD

    OpenAIRE

    BUDACIA, Andreea

    2011-01-01

    The global market is a challenge which requires a certain attitude from its economic agents, a proactive behavior meant to ensure advantageous positions in certain domains of activity. In the audiovisual domain, major enterprises have a precise and competitive strategy. Marketing strategies represent “the path chosen by the enterprise in order to achieve certain goals†which are of two types: market strategies and mix strategies. Market strategies typical of audiovisual services have the f...

  4. Audiovisual classification of vocal outbursts in human conversation using long-short-term memory networks

    OpenAIRE

    F. Eyben; Petridis, S.; Schuller, Björn; Tzimiropoulos, Georgios; Zafeiriou, Stefanos; Pantic, Maja

    2011-01-01

    We investigate classification of non-linguistic vocalisations with a novel audiovisual approach and Long Short-Term Memory (LSTM) Recurrent Neural Networks as highly successful dynamic sequence classifiers. As database of evaluation serves this year's Paralinguistic Challenge's Audiovisual Interest Corpus of human-to-human natural conversation. For video-based analysis we compare shape and appearance based features. These are fused in an early manner with typical audio descriptors. The result...

  5. El documentalista audiovisual als serveis de documentació de les televisions locals

    OpenAIRE

    Martínez, Virginia

    2008-01-01

    The irruption of digital systems into the televisions has opened a new front for those audiovisual documentalists working on a television documentation centre. To the traditional tasks as cataloguing and storage, news tasks common to digital contents management have been added, such as metadata generation and management, or information flow control of servers and archives. This poster is based on the audiovisual documentalist figure on the local television, and it shows the environment wher...

  6. Psychophysical Responses Comparison in Spatial Visual, Audiovisual, and Auditory BCI-Spelling Paradigms

    OpenAIRE

    Chang, Moonjeong; Nishikawa, Nozomu; Cai, Zhenyu; Makino, Shoji; Rutkowski, Tomasz M.

    2012-01-01

    The paper presents a pilot study conducted with spatial visual, audiovisual and auditory brain-computer-interface (BCI) based speller paradigms. The psychophysical experiments are conducted with healthy subjects in order to evaluate a difficulty and a possible response accuracy variability. We also present preliminary EEG results in offline BCI mode. The obtained results validate a thesis, that spatial auditory only paradigm performs as good as the traditional visual and audiovisual speller B...

  7. Teacher's uses of educational audiovisual at the digital age : lesite.tv case study

    OpenAIRE

    Marty, Frédéric

    2015-01-01

    This research focuses on the uses of educational audiovisual by teachers. It falls within the theoretical framework of the sociology of uses, however, the research object at the heart of this work is at the intersection of audiovisual and educational issues. Therefore, it aims to develop a communicationnal approach of educational tools and media, as defined by Pierre Moeglin (2005). The first stage of this work tries to highlight the elements that configure the use, regarding the side of acto...

  8. Superior temporal activation in response to dynamic audio-visual emotional cues

    OpenAIRE

    Robins, Diana L.; Hunyadi, Elinora; Schultz, Robert T.

    2008-01-01

    Perception of emotion is critical for successful social interaction, yet the neural mechanisms underlying the perception of dynamic, audiovisual emotional cues are poorly understood. Evidence from language and sensory paradigms suggests that the superior temporal sulcus and gyrus (STS/STG) play a key role in the integration of auditory and visual cues. Emotion perception research has focused on static facial cues; however, dynamic audiovisual (AV) cues mimic real-world social cues more accura...

  9. PRESTOPRIME: Deliverable D3.1: Design and specification of the audiovisual preservation toolkit

    OpenAIRE

    Phillips, Stephen

    2010-01-01

    This deliverable is a specification and design document for an audiovisual content preservation environment. It contains a review of current digital preservation support for AV files, a survey of File-Corruption Detection methods and technologies, a review of threats to data integrity from use of large-scale data management environments; SLA schemas and QoS parameters for using online storage services in audiovisual preservation, the design of a system for preservation using both migration an...

  10. Film Studies in Motion : From Audiovisual Essay to Academic Research Video

    NARCIS (Netherlands)

    Kiss, Miklós; van den Berg, Thomas

    2016-01-01

    Our (co-written with Thomas van den Berg) ‪media rich,‬ ‪‎open access‬ ‪‎Scalar‬ ‪e-book‬ on the ‪‎Audiovisual Essay‬ practice is available online: http://scalar.usc.edu/works/film-studies-in-motion Audiovisual essaying should be more than an appropriation of traditional video artistry, or a mere au

  11. Children with a history of SLI show reduced sensitivity to audiovisual temporal asynchrony: An ERP Study

    Science.gov (United States)

    Kaganovich, Natalya; Schumaker, Jennifer; Leonard, Laurence B.; Gustafson, Dana; Macias, Danielle

    2014-01-01

    Purpose We examined whether school-age children with a history of SLI (H-SLI), their typically developing (TD) peers, and adults differ in sensitivity to audiovisual temporal asynchrony and whether such difference stems from the sensory encoding of audiovisual information. Method 15 H-SLI children, 15 TD children, and 15 adults judged whether a flashed explosion-shaped figure and a 2 kHz pure tone occurred simultaneously. The stimuli were presented at 0, 100, 200, 300, 400, and 500 ms temporal offsets. This task was combined with EEG recordings. Results H-SLI children were profoundly less sensitive to temporal separations between auditory and visual modalities compared to their TD peers. Those H-SLI children who performed better at simultaneity judgment also had higher language aptitude. TD children were less accurate than adults, revealing a remarkably prolonged developmental course of the audiovisual temporal discrimination. Analysis of early ERP components suggested that poor sensory encoding was not a key factor in H-SLI children’s reduced sensitivity to audiovisual asynchrony. Conclusions Audiovisual temporal discrimination is impaired in H-SLI children and is still immature during mid-childhood in TD children. The present findings highlight the need for further evaluation of the role of atypical audiovisual processing in the development of SLI. PMID:24686922

  12. The development and use of audio-visual technology in terms of economy and socio-economic trends in society

    OpenAIRE

    Mikšík, Jan

    2014-01-01

    The aim of this work is to describe history of audio-visual technology and to analyse the influence of digitalization. The text describes the history of cinematography, television and also the introduction of audio-visual technology to people's homes. It contains information on present situation as well as new trends and the influence of the Internet on audio-visual making. There is a comparison of past and present technologies. The new technologies are accessible even for amateur creators wh...

  13. The spatial reliability of task-irrelevant sounds modulates bimodal audiovisual integration: An event-related potential study.

    Science.gov (United States)

    Li, Qi; Yu, Hongtao; Wu, Yan; Gao, Ning

    2016-08-26

    The integration of multiple sensory inputs is essential for perception of the external world. The spatial factor is a fundamental property of multisensory audiovisual integration. Previous studies of the spatial constraints on bimodal audiovisual integration have mainly focused on the spatial congruity of audiovisual information. However, the effect of spatial reliability within audiovisual information on bimodal audiovisual integration remains unclear. In this study, we used event-related potentials (ERPs) to examine the effect of spatial reliability of task-irrelevant sounds on audiovisual integration. Three relevant ERP components emerged: the first at 140-200ms over a wide central area, the second at 280-320ms over the fronto-central area, and a third at 380-440ms over the parieto-occipital area. Our results demonstrate that ERP amplitudes elicited by audiovisual stimuli with reliable spatial relationships are larger than those elicited by stimuli with inconsistent spatial relationships. In addition, we hypothesized that spatial reliability within an audiovisual stimulus enhances feedback projections to the primary visual cortex from multisensory integration regions. Overall, our findings suggest that the spatial linking of visual and auditory information depends on spatial reliability within an audiovisual stimulus and occurs at a relatively late stage of processing. PMID:27392755

  14. Can personality traits predict pathological responses to audiovisual stimulation?

    Science.gov (United States)

    Yambe, Tomoyuki; Yoshizawa, Makoto; Fukudo, Shin; Fukuda, Hiroshi; Kawashima, Ryuta; Shizuka, Kazuhiko; Nanka, Shunsuke; Tanaka, Akira; Abe, Ken-ichi; Shouji, Tomonori; Hongo, Michio; Tabayashi, Kouichi; Nitta, Shin-ichi

    2003-10-01

    pathophysiological reaction to the audiovisual stimulations. As for the photo sensitive epilepsy, it was reported to be only 5-10% for all patients. Therefore, 90% or more of the cause could not be determined in patients who started a morbid response. The results in this study suggest that the autonomic function was connected to the mental tendency of the objects. By examining such directivity, it is expected that subjects, which show morbid reaction to an audiovisual stimulation, can be screened beforehand. PMID:14572681

  15. Audio-Visual Perception System for a Humanoid Robotic Head

    Directory of Open Access Journals (Sweden)

    Raquel Viciana-Abad

    2014-05-01

    Full Text Available One of the main issues within the field of social robotics is to endow robots with the ability to direct attention to people with whom they are interacting. Different approaches follow bio-inspired mechanisms, merging audio and visual cues to localize a person using multiple sensors. However, most of these fusion mechanisms have been used in fixed systems, such as those used in video-conference rooms, and thus, they may incur difficulties when constrained to the sensors with which a robot can be equipped. Besides, within the scope of interactive autonomous robots, there is a lack in terms of evaluating the benefits of audio-visual attention mechanisms, compared to only audio or visual approaches, in real scenarios. Most of the tests conducted have been within controlled environments, at short distances and/or with off-line performance measurements. With the goal of demonstrating the benefit of fusing sensory information with a Bayes inference for interactive robotics, this paper presents a system for localizing a person by processing visual and audio data. Moreover, the performance of this system is evaluated and compared via considering the technical limitations of unimodal systems. The experiments show the promise of the proposed approach for the proactive detection and tracking of speakers in a human-robot interactive framework.

  16. Audio-visual assistance in co-creating transition knowledge

    Science.gov (United States)

    Hezel, Bernd; Broschkowski, Ephraim; Kropp, Jürgen P.

    2013-04-01

    Earth system and climate impact research results point to the tremendous ecologic, economic and societal implications of climate change. Specifically people will have to adopt lifestyles that are very different from those they currently strive for in order to mitigate severe changes of our known environment. It will most likely not suffice to transfer the scientific findings into international agreements and appropriate legislation. A transition is rather reliant on pioneers that define new role models, on change agents that mainstream the concept of sufficiency and on narratives that make different futures appealing. In order for the research community to be able to provide sustainable transition pathways that are viable, an integration of the physical constraints and the societal dynamics is needed. Hence the necessary transition knowledge is to be co-created by social and natural science and society. To this end, the Climate Media Factory - in itself a massively transdisciplinary venture - strives to provide an audio-visual connection between the different scientific cultures and a bi-directional link to stake holders and society. Since methodology, particular language and knowledge level of the involved is not the same, we develop new entertaining formats on the basis of a "complexity on demand" approach. They present scientific information in an integrated and entertaining way with different levels of detail that provide entry points to users with different requirements. Two examples shall illustrate the advantages and restrictions of the approach.

  17. Audiovisual education and breastfeeding practices: A preliminary report

    Directory of Open Access Journals (Sweden)

    V. C. Nikodem

    1993-05-01

    Full Text Available A randomized control trial was conducted at the Coronation Hospital, to evaluate the effect of audiovisual breastfeeding education. Within 72 hours after delivery, 340 women who agreed to participate were allocated randomly to view one of two video programmes, one of which dealt with breastfeeding. To determine the effect of the programme on infant feeding a structured questionnaire was administered to 108 women who attended the six week postnatal check-up. Alternative methods, such as telephonic interviews (24 and home visits (30 were used to obtain information from subjects who did not attend the postnatal clinic. Comparisons of mother-infant relationships and postpartum depression showed no significant differences. Similar proportions of each group reported that their baby was easy to manage, and that they felt close to and could communicate well with it. While the overall number of mothers who breast-fed was not significantly different between the two groups, there was a trend towards fewer mothers in the study group supplementing with bottle feeding. It was concluded that the effectiveness of aidiovisual education alone is limited, and attention should be directed towards personal follow-up and support for breastfeeding mothers.

  18. Audio-visual perception system for a humanoid robotic head.

    Science.gov (United States)

    Viciana-Abad, Raquel; Marfil, Rebeca; Perez-Lorenzo, Jose M; Bandera, Juan P; Romero-Garces, Adrian; Reche-Lopez, Pedro

    2014-01-01

    One of the main issues within the field of social robotics is to endow robots with the ability to direct attention to people with whom they are interacting. Different approaches follow bio-inspired mechanisms, merging audio and visual cues to localize a person using multiple sensors. However, most of these fusion mechanisms have been used in fixed systems, such as those used in video-conference rooms, and thus, they may incur difficulties when constrained to the sensors with which a robot can be equipped. Besides, within the scope of interactive autonomous robots, there is a lack in terms of evaluating the benefits of audio-visual attention mechanisms, compared to only audio or visual approaches, in real scenarios. Most of the tests conducted have been within controlled environments, at short distances and/or with off-line performance measurements. With the goal of demonstrating the benefit of fusing sensory information with a Bayes inference for interactive robotics, this paper presents a system for localizing a person by processing visual and audio data. Moreover, the performance of this system is evaluated and compared via considering the technical limitations of unimodal systems. The experiments show the promise of the proposed approach for the proactive detection and tracking of speakers in a human-robot interactive framework. PMID:24878593

  19. The influence of task on gaze during audiovisual speech perception

    Science.gov (United States)

    Buchan, Julie; Paré, Martin; Yurick, Micheal; Munhall, Kevin

    2001-05-01

    In natural conversation, visual and auditory information about speech not only provide linguistic information but also provide information about the identity and the emotional state of the speaker. Thus, listeners must process a wide range of information in parallel to understand the full meaning in a message. In this series of studies, we examined how different types of visual information conveyed by a speaker's face are processed by measuring the gaze patterns exhibited by subjects watching audiovisual recordings of spoken sentences. In three experiments, subjects were asked to judge the emotion and the identity of the speaker, and to report the words that they heard under different auditory conditions. As in previous studies, eye and mouth regions dominated the distribution of the gaze fixations. It was hypothesized that the eyes would attract more fixations for more social judgment tasks, rather than tasks which rely more on verbal comprehension. Our results support this hypothesis. In addition, the location of gaze on the face did not influence the accuracy of the perception of speech in noise.

  20. Linguagem Audiovisual no Ensino de Química

    Directory of Open Access Journals (Sweden)

    T. A. Almeida

    2014-11-01

    Full Text Available As fortes mudanças no cenário educacional relacionadas às tecnologias colocam em pauta a forma como o ensino é ministrado, ou ainda, como prender a atenção dos alunos nessa era digital. Nesse contexto as mídias audiovisuais tornaram-se uma grande contribuinte para o ensino de ciências. A ideia base do projeto foi usar da linguagem audiovisual (vídeos como metodologia alternativa no ensino e aprendizagem de Química. Para isso, com observações, criação e apresentação de um vídeo e formulação de questionários (antes e depois da exposição do vídeo, foi possível visualizar e explorar o que os alunos sabem sobre a teoria atômica e sua historicidade, além de buscar corrigir e modificar a visão que os estudantes possuem do átomo. As respostas dos questionários aplicados mostram que os estudantes possuem uma visão fragmentada dos modelos atômicos, porém, com o vídeo e as discussões foi possível sanar alguns dos erros conceituais identificados.

  1. Neurofunctional underpinnings of audiovisual emotion processing in teens with Autism Spectrum Disorders

    Directory of Open Access Journals (Sweden)

    Krissy A.R. Doyle-Thomas

    2013-05-01

    Full Text Available Despite successful performance on some audiovisual emotion tasks, hypoactivity has been observed in frontal and temporal integration cortices in individuals with autism spectrum disorders (ASD. Little is understood about the neurofunctional network underlying this ability in individuals with ASD. Research suggests that there may be processing biases in individuals with ASD, based on their ability to obtain meaningful information from the face and/or the voice. This functional magnetic resonance imaging study examined brain activity in teens with ASD (n=18 and typically developing controls (n=16 during audiovisual and unimodal emotion processing . Teens with ASD had a significantly lower accuracy when matching an emotional face to an emotion label. However, no differences in accuracy were observed between groups when matching an emotional voice or face-voice pair to an emotion label. In both groups brain activity during audiovisual emotion matching differed significantly from activity during unimodal emotion matching. Between-group analyses of audiovisual processing revealed significantly greater activation in teens with ASD in a parietofrontal network believed to be implicated in attention, goal-directed behaviours, and semantic processing. In contrast, controls showed greater activity in frontal and temporal association cortices during this task. These results suggest that during audiovisual emotion matching individuals with ASD may rely on a parietofrontal network to compensate for atypical brain activity elsewhere.

  2. Keeping time in the brain: Autism spectrum disorder and audiovisual temporal processing.

    Science.gov (United States)

    Stevenson, Ryan A; Segers, Magali; Ferber, Susanne; Barense, Morgan D; Camarata, Stephen; Wallace, Mark T

    2016-07-01

    A growing area of interest and relevance in the study of autism spectrum disorder (ASD) focuses on the relationship between multisensory temporal function and the behavioral, perceptual, and cognitive impairments observed in ASD. Atypical sensory processing is becoming increasingly recognized as a core component of autism, with evidence of atypical processing across a number of sensory modalities. These deviations from typical processing underscore the value of interpreting ASD within a multisensory framework. Furthermore, converging evidence illustrates that these differences in audiovisual processing may be specifically related to temporal processing. This review seeks to bridge the connection between temporal processing and audiovisual perception, and to elaborate on emerging data showing differences in audiovisual temporal function in autism. We also discuss the consequence of such changes, the specific impact on the processing of different classes of audiovisual stimuli (e.g. speech vs. nonspeech, etc.), and the presumptive brain processes and networks underlying audiovisual temporal integration. Finally, possible downstream behavioral implications, and possible remediation strategies are outlined. Autism Res 2016, 9: 720-738. © 2015 International Society for Autism Research, Wiley Periodicals, Inc. PMID:26402725

  3. Electrophysiological correlates of predictive coding of auditory location in the perception of natural audiovisual events

    Directory of Open Access Journals (Sweden)

    Jeroen eStekelenburg

    2012-05-01

    Full Text Available In many natural audiovisual events (e.g., a clap of the two hands, the visual signal precedes the sound and thus allows observers to predict when, where, and which sound will occur. Previous studies have already reported that there are distinct neural correlates of temporal (when versus phonetic/semantic (which content on audiovisual integration. Here we examined the effect of visual prediction of auditory location (where in audiovisual biological motion stimuli by varying the spatial congruency between the auditory and visual part of the audiovisual stimulus. Visual stimuli were presented centrally, whereas auditory stimuli were presented either centrally or at 90° azimuth. Typical subadditive amplitude reductions (AV – V < A were found for the auditory N1 and P2 for spatially congruent and incongruent conditions. The new finding is that the N1 suppression was larger for spatially congruent stimuli. A very early audiovisual interaction was also found at 30-50 ms in the spatially congruent condition, while no effect of congruency was found on the suppression of the P2. This indicates that visual prediction of auditory location can be coded very early in auditory processing.

  4. A Novel Audiovisual Brain-Computer Interface and Its Application in Awareness Detection.

    Science.gov (United States)

    Wang, Fei; He, Yanbin; Pan, Jiahui; Xie, Qiuyou; Yu, Ronghao; Zhang, Rui; Li, Yuanqing

    2015-01-01

    Currently, detecting awareness in patients with disorders of consciousness (DOC) is a challenging task, which is commonly addressed through behavioral observation scales such as the JFK Coma Recovery Scale-Revised. Brain-computer interfaces (BCIs) provide an alternative approach to detect awareness in patients with DOC. However, these patients have a much lower capability of using BCIs compared to healthy individuals. This study proposed a novel BCI using temporally, spatially, and semantically congruent audiovisual stimuli involving numbers (i.e., visual and spoken numbers). Subjects were instructed to selectively attend to the target stimuli cued by instruction. Ten healthy subjects first participated in the experiment to evaluate the system. The results indicated that the audiovisual BCI system outperformed auditory-only and visual-only systems. Through event-related potential analysis, we observed audiovisual integration effects for target stimuli, which enhanced the discriminability between brain responses for target and nontarget stimuli and thus improved the performance of the audiovisual BCI. This system was then applied to detect the awareness of seven DOC patients, five of whom exhibited command following as well as number recognition. Thus, this audiovisual BCI system may be used as a supportive bedside tool for awareness detection in patients with DOC. PMID:26123281

  5. Developing an Audiovisual Notebook as a Self-Learning Tool in Histology: Perceptions of Teachers and Students

    Science.gov (United States)

    Campos-Sánchez, Antonio; López-Núñez, Juan-Antonio; Scionti, Giuseppe; Garzón, Ingrid; González-Andrades, Miguel; Alaminos, Miguel; Sola, Tomás

    2014-01-01

    Videos can be used as didactic tools for self-learning under several circumstances, including those cases in which students are responsible for the development of this resource as an audiovisual notebook. We compared students' and teachers' perceptions regarding the main features that an audiovisual notebook should include. Four…

  6. Do gender differences in audio-visual benefit and visual influence in audio-visual speech perception emerge with age?

    Directory of Open Access Journals (Sweden)

    Magnus eAlm

    2015-07-01

    Full Text Available Gender and age have been found to affect adults’ audio-visual (AV speech perception. However, research on adult aging focuses on adults over 60 years, who have an increasing likelihood for cognitive and sensory decline, which may confound positive effects of age-related AV-experience and its interaction with gender. Observed age and gender differences in AV speech perception may also depend on measurement sensitivity and AV task difficulty. Consequently both AV benefit and visual influence were used to measure visual contribution for gender-balanced groups of young (20-30 years and middle-aged adults (50-60 years with task difficulty varied using AV syllables from different talkers in alternative auditory backgrounds. Females had better speech-reading performance than males. Whereas no gender differences in AV benefit or visual influence were observed for young adults, visually influenced responses were significantly greater for middle-aged females than middle-aged males. That speech-reading performance did not influence AV benefit may be explained by visual speech extraction and AV integration constituting independent abilities. Contrastingly, the gender difference in visually influenced responses in middle adulthood may reflect an experience-related shift in females’ general AV perceptual strategy. Although young females’ speech-reading proficiency may not readily contribute to greater visual influence, between young and middle-adulthood recurrent confirmation of the contribution of visual cues induced by speech-reading proficiency may gradually shift females AV perceptual strategy towards more visually dominated responses.

  7. Omnidirectional Audio-Visual Talker Localization Based on Dynamic Fusion of Audio-Visual Features Using Validity and Reliability Criteria

    Science.gov (United States)

    Denda, Yuki; Nishiura, Takanobu; Yamashita, Yoichi

    This paper proposes a robust omnidirectional audio-visual (AV) talker localizer for AV applications. The proposed localizer consists of two innovations. One of them is robust omnidirectional audio and visual features. The direction of arrival (DOA) estimation using an equilateral triangular microphone array, and human position estimation using an omnidirectional video camera extract the AV features. The other is a dynamic fusion of the AV features. The validity criterion, called the audioor visual-localization counter, validates each audio- or visual-feature. The reliability criterion, called the speech arriving evaluator, acts as a dynamic weight to eliminate any prior statistical properties from its fusion procedure. The proposed localizer can compatibly achieve talker localization in a speech activity and user localization in a non-speech activity under the identical fusion rule. Talker localization experiments were conducted in an actual room to evaluate the effectiveness of the proposed localizer. The results confirmed that the talker localization performance of the proposed AV localizer using the validity and reliability criteria is superior to that of conventional localizers.

  8. Causation model of autism: Audiovisual brain specialization in infancy competes with social brain networks.

    Science.gov (United States)

    Heffler, Karen Frankel; Oestreicher, Leonard M

    2016-06-01

    Earliest identifiable findings in autism indicate that the autistic brain develops differently from the typical brain in the first year of life, after a period of typical development. Twin studies suggest that autism has an environmental component contributing to causation. Increased availability of audiovisual (AV) materials and viewing practices of infants parallel the time frame of the rise in prevalence of autism spectrum disorder (ASD). Studies have shown an association between ASD and increased TV/cable screen exposure in infancy, suggesting AV exposure in infancy as a possible contributing cause of ASD. Infants are attracted to the saliency of AV materials, yet do not have the experience to recognize these stimuli as socially relevant. The authors present a developmental model of autism in which exposure to screen-based AV input in genetically susceptible infants stimulates specialization of non-social sensory processing in the brain. Through a process of neuroplasticity, the autistic infant develops the skills that are driven by the AV viewing. The AV developed neuronal pathways compete with preference for social processing, negatively affecting development of social brain pathways and causing global developmental delay. This model explains atypical face and speech processing, as well as preference for AV synchrony over biological motion in ASD. Neural hyper-connectivity, enlarged brain size and special abilities in visual, auditory and motion processing in ASD are also explained by the model. Positive effects of early intervention are predicted by the model. Researchers studying causation of autism have largely overlooked AV exposure in infancy as a potential contributing factor. The authors call for increased public awareness of the association between early screen viewing and ASD, and a concerted research effort to determine the extent of causal relationship. PMID:26146132

  9. A Similarity-Based Approach for Audiovisual Document Classification Using Temporal Relation Analysis

    Directory of Open Access Journals (Sweden)

    Ferrane Isabelle

    2011-01-01

    Full Text Available Abstract We propose a novel approach for video classification that bases on the analysis of the temporal relationships between the basic events in audiovisual documents. Starting from basic segmentation results, we define a new representation method that is called Temporal Relation Matrix (TRM. Each document is then described by a set of TRMs, the analysis of which makes events of a higher level stand out. This representation has been first designed to analyze any audiovisual document in order to find events that may well characterize its content and its structure. The aim of this work is to use this representation to compute a similarity measure between two documents. Approaches for audiovisual documents classification are presented and discussed. Experimentations are done on a set of 242 video documents and the results show the efficiency of our proposals.

  10. Indexing method of digital audiovisual medical resources with semantic Web integration.

    Science.gov (United States)

    Cuggia, Marc; Mougin, Fleur; Le Beux, Pierre

    2005-03-01

    Digitalization of audiovisual resources and network capability offer many possibilities which are the subject of intensive work in scientific and industrial sectors. Indexing such resources is a major challenge. Recently, the Motion Pictures Expert Group (MPEG) has developed MPEG-7, a standard for describing multimedia content. The goal of this standard is to develop a rich set of standardized tools to enable efficient retrieval from digital archives or the filtering of audiovisual broadcasts on the Internet. How could this kind of technology be used in the medical context? In this paper, we propose a simpler indexing system, based on the Dublin Core standard and compliant to MPEG-7. We use MeSH and the UMLS to introduce conceptual navigation. We also present a video-platform which enables encoding and gives access to audiovisual resources in streaming mode. PMID:15694622

  11. Media and journalism as forms of knowledge: a methodology for critical reading of journalistic audiovisual narratives

    Directory of Open Access Journals (Sweden)

    Beatriz Becker

    2012-06-01

    Full Text Available The work presents a methodology for the analysis of journalistic audiovisual narratives, and instrument of critical reading of news contents and formats which utilize audiovisual language and multimedia resources on TV and on the web. It is assumed that the comprehension of the dynamic combinations of the elements which constitute the audiovisual text contributes to a better perception of the meanings of the news, and that uses of the digital tools in a critical and creative way can collaborate in the practice of citizenship and in the perfection of current journalistic practice, highlighting the importance of the training of future professionals. The methodology proposed here is supported by technical references established in the possible dialogues of the research works in the journalism field itself with the contributions of Media Literacy, of Televisual Analysis, of Cultural Studies and of Discourse Analysis.

  12. Influence of auditory and audiovisual stimuli on the right-left prevalence effect

    DEFF Research Database (Denmark)

    Vu, Kim-Phuong L; Minakata, Katsumi; Ngo, Mary Kim

    2014-01-01

    vertical coding through use of the spatial-musical association of response codes (SMARC) effect, where pitch is coded in terms of height in space. In Experiment 1, we found a larger right-left prevalence effect for unimodal auditory than visual stimuli. Neutral, non-pitch coded, audiovisual stimuli did not...... result in cross-modal facilitation, but did show evidence of visual dominance. The right-left prevalence effect was eliminated in the presence of SMARC audiovisual stimuli, but the effect influenced horizontal rather than vertical coding. Experiment 2 showed that the influence of the pitch dimension was...... not in terms of influencing response selection on a trial-to-trial basis, but in terms of altering the salience of the task environment. Taken together, these findings indicate that in the absence of salient vertical cues, auditory and audiovisual stimuli tend to be coded along the horizontal...

  13. Reproducibility and discriminability of brain patterns of semantic categories enhanced by congruent audiovisual stimuli.

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    Yuanqing Li

    Full Text Available One of the central questions in cognitive neuroscience is the precise neural representation, or brain pattern, associated with a semantic category. In this study, we explored the influence of audiovisual stimuli on the brain patterns of concepts or semantic categories through a functional magnetic resonance imaging (fMRI experiment. We used a pattern search method to extract brain patterns corresponding to two semantic categories: "old people" and "young people." These brain patterns were elicited by semantically congruent audiovisual, semantically incongruent audiovisual, unimodal visual, and unimodal auditory stimuli belonging to the two semantic categories. We calculated the reproducibility index, which measures the similarity of the patterns within the same category. We also decoded the semantic categories from these brain patterns. The decoding accuracy reflects the discriminability of the brain patterns between two categories. The results showed that both the reproducibility index of brain patterns and the decoding accuracy were significantly higher for semantically congruent audiovisual stimuli than for unimodal visual and unimodal auditory stimuli, while the semantically incongruent stimuli did not elicit brain patterns with significantly higher reproducibility index or decoding accuracy. Thus, the semantically congruent audiovisual stimuli enhanced the within-class reproducibility of brain patterns and the between-class discriminability of brain patterns, and facilitate neural representations of semantic categories or concepts. Furthermore, we analyzed the brain activity in superior temporal sulcus and middle temporal gyrus (STS/MTG. The strength of the fMRI signal and the reproducibility index were enhanced by the semantically congruent audiovisual stimuli. Our results support the use of the reproducibility index as a potential tool to supplement the fMRI signal amplitude for evaluating multimodal integration.

  14. Effect of Anti-Tobacco Audiovisual Messages on Knowledge and Attitude towards Tobacco Use in North India

    Directory of Open Access Journals (Sweden)

    Jagdish Kaur

    2012-01-01

    Full Text Available Context: Tobacco use is one of the leading preventable causes of death globally. Mass media plays a significant role in initiation as well as in control of tobacco use. Aims: To assess the effect of viewing anti-tobacco audiovisual messages on knowledge and attitudinal change towards tobacco use. Settings and Design: Interventional community-based study. Materials and Methods: A total of 1999 cinema attendees (age 10 years and above, irrespective of their smoking or tobacco using status, were selected from four cinema halls (two urban, one semi-urban, and one rural site. In pre-exposure phase 1000 subjects and in post-exposure phase 999 subjects were interviewed using a pre-tested questionnaire. After collecting baseline information, the other days were chosen for screening the audiovisual spots that were shown twice per show. After the show, subjects were interviewed to assess its effect. Statistical Analysis Used: Proportions of two independent groups were compared and statistically significance using chi-square test was accepted if error was less than 0.05%. Results: Overall 784 (39.2% subjects were tobacco users, 52.6% were non-tobacco users and 8.2% were former tobacco users. Important factors for initiation of tobacco use were peer pressure (62%, imitating elders (53.4% and imitating celebrity (63.5%. Tobacco users were significantly less likely than non-tobacco users to recall watching the spots during movie (72.1% vs. 79.1%. Anti-tobacco advertisement gave inspiration to 37% of subjects not to use tobacco. The celebrity in advertisement influenced the people′s attention. There was significant improvement in knowledge and attitudes towards anti-tobacco legal and public health measures in post exposure group. Conclusions: The anti-tobacco advertisements have been found to be effective in enhancing knowledge as well as in transforming to positive attitude of the people about tobacco use.

  15. Automatic Identification used in Audio-Visual indexing and Analysis

    Directory of Open Access Journals (Sweden)

    A. Satish Chowdary

    2011-09-01

    Full Text Available To locate a video clip in large collections is very important for retrieval applications, especially for digital rights management. We attempt to provide a comprehensive and high-level review of audiovisual features that can be extracted from the standard compressed domains, such as MPEG-1 and MPEG-2. This paper presents a graph transformation and matching approach to identify the occurrence of potentially different ordering or length due to content editing. With a novel batch query algorithm to retrieve similar frames, the mapping relationship between the query and database video is first represented by a bipartite graph. The densely matched parts along the long sequence are then extracted, followed by a filter-and-refine search strategy to prune some irrelevant subsequences. During the filtering stage, Maximum Size Matching is deployed for each sub graph constructed by the query and candidate subsequence to obtain a smaller set of candidates. During the refinement stage, Sub-Maximum Similarity Matching is devised to identify the subsequence with the highest aggregate score from all candidates, according to a robust video similarity model that incorporates visual content, temporal order, and frame alignment information. This new algorithm is based on dynamic programming that fully uses the temporal dimension to measure the similarity between two video sequences. A normalized chromaticity histogram is used as a feature which is illumination invariant. Dynamic programming is applied on shot level to find the optimal nonlinear mapping between video sequences. Two new normalized distance measures are presented for video sequence matching. One measure is based on the normalization of the optimal path found by dynamic programming. The other measure combines both the visual features and the temporal information. The proposed distance measures are suitable for variable-length comparisons.

  16. Audiovisual correspondence between musical timbre and visual shapes.

    Directory of Open Access Journals (Sweden)

    Mohammad eAdeli

    2014-05-01

    Full Text Available This article investigates the cross-modal correspondences between musical timbre and shapes. Previously, such features as pitch, loudness, light intensity, visual size, and color characteristics have mostly been used in studies of audio-visual correspondences. Moreover, in most studies, simple stimuli e.g. simple tones have been utilized. In this experiment, 23 musical sounds varying in fundamental frequency and timbre but fixed in loudness were used. Each sound was presented once against colored shapes and once against grayscale shapes. Subjects had to select the visual equivalent of a given sound i.e. its shape, color (or grayscale and vertical position. This scenario permitted studying the associations between normalized timbre and visual shapes as well as some of the previous findings for more complex stimuli. 119 subjects (31 females and 88 males participated in the online experiment. Subjects included 36 claimed professional musicians, 47 claimed amateur musicians and 36 claimed non-musicians. 31 subjects have also claimed to have synesthesia-like experiences. A strong association between timbre of envelope normalized sounds and visual shapes was observed. Subjects have strongly associated soft timbres with blue, green or light gray rounded shapes, harsh timbres with red, yellow or dark gray sharp angular shapes and timbres having elements of softness and harshness together with a mixture of the two previous shapes. Color or grayscale had no effect on timbre-shape associations. Fundamental frequency was not associated with height, grayscale or color. The significant correspondence between timbre and shape revealed by the present work allows designing substitution systems which might help the blind to perceive shapes through timbre.

  17. El lenguaje WOW de las 6W. Tratamiento audiovisual de la información televisada

    OpenAIRE

    Santiago Martínez, Pablo

    2016-01-01

    El escenario televisivo actual está caracterizado por una hibridación de géneros y funciones provocada por el auge del infoentretenimiento, un macrogénero imparable que combina la función informativa clásica con la búsqueda de la emotividad. Para combinar ambas funciones, el uso del lenguaje audiovisual adquiere una nueva relevancia. Esta disertación tiene como objetivo principal determinar y analizar la función de aquellos elementos del lenguaje audiovisual que influyan en la calidad y compr...

  18. Cross-Modal Matching of Audio-Visual German and French Fluent Speech in Infancy

    OpenAIRE

    Kubicek, Claudia; Hillairet de Boisferon, Anne; Dupierrix, Eve; Pascalis, Olivier; Lœvenbruck, Hélène; Gervain, Judit; Schwarzer, Gudrun

    2014-01-01

    The present study examined when and how the ability to cross-modally match audio-visual fluent speech develops in 4.5-, 6- and 12-month-old German-learning infants. In Experiment 1, 4.5- and 6-month-old infants' audio-visual matching ability of native (German) and non-native (French) fluent speech was assessed by presenting auditory and visual speech information sequentially, that is, in the absence of temporal synchrony cues. The results showed that 4.5-month-old infants were capable of matc...

  19. Els estudis universitaris de comunicació audiovisual als Països Catalans

    OpenAIRE

    Martí, Josep Maria, 1950-; Bonet Bonet Bagant, Montse; Montagut Calvo, Marta; Pérez-Portabella Lopez, Antoni

    2006-01-01

    El sector audiovisual als Països Catalans ha experimentat en els darrers anys un important creixement, alhora que una diversificació remarcable com a conseqüència de l’aparició de nous suports i de noves tecnologies. En aquest mateix període s’ha incrementat el nombre de facultats i de centres de formació que inclouen entre les seves llicenciatures les que fan referència a la comunicació audiovisual. Existeixen dificultats objectives per aconseguir que els plans d’estudis reflecteixin aquest ...

  20. Los nuevos modelos de producción audiovisual aplicados a contenidos deportivos

    OpenAIRE

    Marín Montín, Joaquín

    2009-01-01

    En la actualidad el sector audiovisual se encuentra inmerso en pleno proceso de transformación marcado por las implicaciones de la tecnología digital. Asistimos al surgimiento de nuevos soportes multimedia para la distribución de contenidos audiovisuales destacando especialmente Internet y diferentes dispositivos móviles. Como consecuencia la producción audiovisual se ha ido reestructurando adaptándose a un nuevo tipo de mercado ya no sólo exclusivo de la televisión. Además la digitalización ...

  1. Grafismo audiovisual: el lenguaje efímero. Recursos y estrategias.

    OpenAIRE

    Herráiz Zornoza, Beatriz

    2009-01-01

    La presente tesis doctoral tiene como objeto de estudio el grafismo audiovisual. El grafismo audiovisual se presenta como un elemento indivisible de los actuales sistemas audiovisuales, tanto en los medios convencionales, cinematográfico o televisivo, como en muchos otros sistemas multiplataforma, como los grandes eventos o los dispositivos periféricos, puesto que forma parte de la comunicación y supone el vehículo idóneo de transmisión de determinadas partes del mensaje. El grafismo audi...

  2. Comunicación audiovisual, una experiencia basada en el blended learning en la universidad

    Directory of Open Access Journals (Sweden)

    Mariona Grané Oró

    2004-01-01

    Full Text Available En los estudios de Comunicación Audiovisual de la Universidad de Barcelona, y bajo una perspectiva de blended learning, diferentes medios y diferentes recursos se disponen para el trabajo de alumnos y profesores. Pero el hecho de poder acceder a diferentes medios no garantiza la calidad en los procesos de enseñanza y aprendizaje. Conocer los recursos de que se dispone, saber planificar el proceso y organizar el uso de los mismos, es la clave para la formación de los alumnos de Comunicación Audiovisual.

  3. El audiovisual español como factor coadyuvante de la marca España

    OpenAIRE

    Tribaldos Macia, Enrique

    2013-01-01

    El objetivo de este trabajo es determinar el impacto que tiene el Sector Audiovisual Español entendido desde tres perspectivas distintas. Primero como alfabeto universal base del ecosistema mediático digital multimedia. Segundo, como contenido creativo de valor artístico. Y tercero como industria destacada, competitiva y próspera con un enorme potencial en el mercado internacional. Por lo tanto, trataremos de investigar sobre si el Sector Audiovisual reúne los requisitos suficientes en la...

  4. La estacíon de trabajo del traductor audiovisual: Herramientas y Recursos.

    OpenAIRE

    Anna Matamala

    2005-01-01

    En este artículo abordamos la relación entre traducción audiovisual y nuevas tecnologías y describimos las características que tiene la estación de trabajo del traductor audiovisual, especialmente en el caso del doblaje y del voice- over. Después de presentar las herramientas que necesita el traductor para llevar a cabo satisfactoriamente su tarea y apuntar vías de futuro, presentamos una relación de recursos que suele consultar para resolver los problemas de traducción, haciendo hincapié en ...

  5. Videojuegos y Televisión. Influencias en el tratamiento audiovisual de contenidos deportivos

    OpenAIRE

    Marín Montín, Joaquín

    2014-01-01

    Muchos videojuegos tratan de emular de forma lúdica mundos reales mediante experiencias virtuales parecidas. En los de temática deportiva, es habitual que algunos de ellos reproduzcan narrativamente un modelo audiovisual como si se tratara de una retransmisión televisiva en directo. Además, desde los videojuegos se han ido experimentado nuevos puntos de vista y otros elementos que posteriormente adoptará el lenguaje televisivo en la realización audiovisual de muchos deportes. Del mismo modo, ...

  6. La estación de trabajo del traductor audiovisual : herramientas y recursos

    OpenAIRE

    Matamala, Anna

    2005-01-01

    En este artículo abordamos la relación entre traducción audiovisual y nuevas tecnologías y describimos las características que tiene la estación de trabajo del traductor audiovisual, especialmente en el caso del doblaje y del voice-over. Después de presentar las herramientas que necesita el traductor para llevar a cabo satisfactoriamente su tarea y apuntar vías de futuro, presentamos una relación de recursos que suele consultar para resolver los problemas de traducción, haciendo hincapié en l...

  7. La m??sica en la narrativa publicitaria audiovisual. El caso de Coca-Cola

    OpenAIRE

    S??nchez Porras, Mar??a Jos??

    2015-01-01

    En esta investigaci??n se ha realizado un estudio profundo de la m??sica en la publicidad audiovisual y su relaci??n con otros aspectos sonoros y visuales de la publicidad. Para llevarlo a cabo se ha seleccionado una marca concreta, Coca-Cola, debido a su globalizaci??n y reconocimiento. Se ha abordado una nueva perspectiva de an??lisis musical en la publicidad audiovisual, abordando los diferentes elementos de la estructura musical a trav??s de la proyecci??n de los anuncios. Se ha rea...

  8. Músicas para persuadir: apropiaciones musicales e hibridaciones genéricas en la publicidad audiovisual

    OpenAIRE

    Fraile Prieto, Teresa

    2012-01-01

    La publicidad audiovisual aglutina las últimas corrientes creativas y tendencias sociales que circulan en los medios. Por eso los spots contemporáneos son un magnífico ejemplo de la actual disolución de fronteras entre unos formatos audiovisuales y otros. Aunque la música es una presencia constante en el medio publicitario gracias a su eficacia emocional, en nuestros días asistimos a una apropiación por parte de la publicidad de los usos de la música en el audiovisual contemporáneo. Este t...

  9. Audiovisual heritage preservation in Earth and Space Science Informatics: Videos from Free and Open Source Software for Geospatial (FOSS4G) conferences in the TIB|AV-Portal.

    Science.gov (United States)

    Löwe, Peter; Marín Arraiza, Paloma; Plank, Margret

    2016-04-01

    continues to grow - and so does the number of topics to be addressed at conferences. Up to now, commercial Web 2.0 platforms like Youtube and Vimeo were used. However, these platforms lack capabilities for long-term archiving and scientific citation, such as persistent identifiers that permit the citation of specific intervals of the overall content. To address these issues, the scientific library community has started to implement improved multimedia archiving and retrieval services for scientific audiovisual content which fulfil these requirements. Using the reference case of the OSGeo conference video recordings, this paper gives an overview over the new and growing collection activities by the German National Library of Science and Technology for audiovisual content in Geoinformatics/ESSI in the TIB|AV Portal for audiovisual content. Following a successful start in 2014 and positive response from the OSGeo Community, the TIB acquisition strategy for OSGeo video material was extended to include German, European, North-American and global conference content. The collection grows steadily by new conference content and also by harvesting of past conference videos from commercial Web 2.0 platforms like Youtube and Vimeo. This positions the TIB|AV-Portal as a reliable and concise long-term resource for innovation mining, education and scholarly research within the ESSI context both within Academia and Industry.

  10. UN REPTE DE LA (SOCIOLINGÜÍSTICA APLICADA: EL MODEL DE LLENGUA COL·LOQUIAL PER A LA COMUNICACIÓ AUDIOVISUAL UN REPTE DE LA (SOCIOLINGÜÍSTICA APLICADA: EL MODEL DE LLENGUA COL·LOQUIAL PER A LA COMUNICACIÓ AUDIOVISUAL UN REPTE DE LA (SOCIOLINGÜÍSTICA APLICADA: EL MODEL DE LLENGUA COL·LOQUIAL PER A LA COMUNICACIÓ AUDIOVISUAL

    Directory of Open Access Journals (Sweden)

    Josep Angel Mas i Castells

    2007-05-01

    Full Text Available La diversitat de situacions en què s’utilitza la llengua en la comunicació audiovisual fa insuficient la divisió entre re g i s t re formal i informal a què solen limitar-se els materials d’orientació lingüística. Aquesta insuficiència es fa palesa especialment en les situacions informals, les quals abracen un llarg continuum que va, per exemple, des de l’entrevista a un famós al disseny de la parla d’un personatge illetrat en el guió d’una sèrie de ficció. Les aportacions de la sociolingüística, incloent-hi tant el variacionisme com l’anàlisi de les actituds lingüístiques, són fonanentals a l’hora de dissenyar propostes de model lingüístic. Cal subratllar que la importància d’aquests materials és cabdal en contextos de conflicte lingüístic com el de la comunitat lingüística de llengua catalana. Més encara en l’espai comunicatiu valencià, al qual es re f e reix especialment aquest article, on les connotacions ideològiques que assoleixen determinades variants poden entrebancar qualsevol proposta.The variety of situations where language is used in audiovisual communications renders the separation between formal and informal register, which normally employ the language orientation materials, inadequate. This inadequacy is highly evident particularly in informal situations, which embrace a long continuum ranging, for example, from the interview of a celebrity to the speech design for an illiterate character in a fiction series script. The sociolinguistic contributions, which include variationism as the analysis of linguistic attitudes, are crucial when formulating proposals for a language model. It should be stressed that the importance of these materials is crucial in contexts where linguistic conflict is pre s e n t , as in the Catalan language community. This applies to a greater extent to the Valencian communicative space, which is the central focus of the present.The variety of situations where

  11. Strategies for Media Literacy: Audiovisual Skills and the Citizenship in Andalusia

    Science.gov (United States)

    Aguaded-Gomez, Ignacio; Perez-Rodriguez, M. Amor

    2012-01-01

    Media consumption is an undeniable fact in present-day society. The hours that members of all social segments spend in front of a screen take up a large part of their leisure time worldwide. Audiovisual communication becomes especially important within the context of today's digital society (society-network), where information and communication…

  12. Audiovisual semantic interference and attention : Evidence from the attentional blink paradigm

    NARCIS (Netherlands)

    Van der Burg, Erik; Brederoo, Sanne G.; Nieuwenstein, Mark R.; Theeuwes, Jan; Olivers, Christian N. L.

    2010-01-01

    In the present study we investigate the role of attention in audiovisual semantic interference, by using an attentional blink paradigm. Participants were asked to make an unspeeded response to the identity of a visual target letter. This target letter was preceded at various SOAs by a synchronized a

  13. The Efficacy of an Audiovisual Aid in Teaching the Neo-Classical Screenplay Paradigm

    Science.gov (United States)

    Uys, P. G.

    2009-01-01

    This study interrogated the central theoretical statement that understanding and learning to apply the abstract concept of classical dramatic narrative structure can be addressed effectively through a useful audiovisual teaching method. The purpose of the study was to design an effective DVD teaching and learning aid, to justify the design through…

  14. Evaluation of an audiovisual-FM system: speechreading performance as a function of distance.

    Science.gov (United States)

    Gagné, Jean-Pierre; Charest, Monique; Le Monday, K; Desbiens, C

    2006-05-01

    A research program was undertaken to evaluate the efficacy of an audiovisual-FM system as a speechreading aid. The present study investigated the effects of the distance between the talker and the speechreader on a visual-speech perception task. Sentences were recorded simultaneously with a conventional Hi8 mm video camera, and with the microcamera of an audiovisual-FM system. The recordings were obtained from two talkers at three different distances: 1.83 m, 3.66 m, and 7.32 m. Sixteen subjects completed a visual-keyword recognition task. The main results of the investigation were as follows: For the recordings obtained with the conventional video camera, there was a significant decrease in speechreading performance as the distance between the talker and the camera increased. For the recordings obtained with the microcamera of the audiovisual-FM system, there were no differences in speechreading as a function of the test distances. The findings of the investigation confirm that in a classroom setting the use of an audiovisual-FM system may constitute an effective way of overcoming the deleterious effects of distance on speechreading performance. PMID:16717020

  15. Automated Apprenticeship Training (AAT). A Systematized Audio-Visual Approach to Self-Paced Job Training.

    Science.gov (United States)

    Pieper, William J.; And Others

    Two Automated Apprenticeship Training (AAT) courses were developed for Air Force Security Police Law Enforcement and Security specialists. The AAT was a systematized audio-visual approach to self-paced job training employing an easily operated teaching device. AAT courses were job specific and based on a behavioral task analysis of the two…

  16. A comparative study on automatic audio-visual fusion for aggression detection using meta-information

    NARCIS (Netherlands)

    Lefter, I.; Rothkrantz, L.J.M.; Burghouts, G.J.

    2013-01-01

    Multimodal fusion is a complex topic. For surveillance applications audio-visual fusion is very promising given the complementary nature of the two streams. However, drawing the correct conclusion from multi-sensor data is not straightforward. In previous work we have analysed a database with audio-

  17. Automatic audio-visual fusion for aggression detection using meta-information

    NARCIS (Netherlands)

    Lefter, I.; Burghouts, G.J.; Rothkrantz, L.J.M.

    2012-01-01

    We propose a new method for audio-visual sensor fusion and apply it to automatic aggression detection. While a variety of definitions of aggression exist, in this paper we see it as any kind of behavior that has a disturbing effect on others. We have collected multi- and unimodal assessments by huma

  18. Brief Report: Arrested Development of Audiovisual Speech Perception in Autism Spectrum Disorders

    Science.gov (United States)

    Stevenson, Ryan A.; Siemann, Justin K.; Woynaroski, Tiffany G.; Schneider, Brittany C.; Eberly, Haley E.; Camarata, Stephen M.; Wallace, Mark T.

    2014-01-01

    Atypical communicative abilities are a core marker of Autism Spectrum Disorders (ASD). A number of studies have shown that, in addition to auditory comprehension differences, individuals with autism frequently show atypical responses to audiovisual speech, suggesting a multisensory contribution to these communicative differences from their…

  19. Audiovisual Speech Perception in Children with Developmental Language Disorder in Degraded Listening Conditions

    Science.gov (United States)

    Meronen, Auli; Tiippana, Kaisa; Westerholm, Jari; Ahonen, Timo

    2013-01-01

    Purpose: The effect of the signal-to-noise ratio (SNR) on the perception of audiovisual speech in children with and without developmental language disorder (DLD) was investigated by varying the noise level and the sound intensity of acoustic speech. The main hypotheses were that the McGurk effect (in which incongruent visual speech alters the…

  20. The audiovisual communication policy of the socialist Government (2004-2009: A neoliberal turn

    Directory of Open Access Journals (Sweden)

    Ramón Zallo, Ph. D.

    2010-01-01

    Full Text Available The first legislature of Jose Luis Rodriguez Zapatero’s government (2004-08 generated important initiatives for some progressive changes in the public communicative system. However, all of these initiatives have been dissolving in the second legislature to give way to a non-regulated and privatizing model that is detrimental to the public service. Three phases can be distinguished, even temporarily: the first one is characterized by interesting reforms; followed by contradictory reforms and, in the second legislature, an accumulation of counter reforms, that lead the system towards a communicative system model completely different from the one devised in the first legislature. This indicates that there has been not one but two different audiovisual policies running the cyclical route of the audiovisual policy from one end to the other. The emphasis has changed from the public service to private concentration; from decentralization to centralization; from the diffusion of knowledge to the accumulation and appropriation of the cognitive capital; from the Keynesian model - combined with the Schumpeterian model and a preference for social access - to a delayed return to the neoliberal model, after having distorted the market through public decisions in the benefit of the most important audiovisual services providers. All this seems to crystallize the impressive process of concentration occurring between audiovisual services providers in two large groups that would be integrated by Mediaset and Sogecable and - in negotiations - between Antena 3 and Imagina. A combination of neo-statist restructuring of the market and neo-liberalism.

  1. Multimodal indexing of digital audio-visual documents: A case study for cultural heritage data

    NARCIS (Netherlands)

    J. Carmichael; M. Larson; J. Marlow; E. Newman; P. Clough; J. Oomen; S. Sav

    2008-01-01

    This paper describes a multimedia multimodal information access sub-system (MIAS) for digital audio-visual documents, typically presented in streaming media format. The system is designed to provide both professional and general users with entry points into video documents that are relevant to their

  2. Joint evaluation of communication quality and user experience in an audio-visual virtual reality meeting

    DEFF Research Database (Denmark)

    Møller, Anders Kalsgaard; Hoffmann, Pablo F.; Carrozzino, Marcello;

    2013-01-01

    The state-of-the-art speech intelligibility tests are created with the purpose of evaluating acoustic communication devices and not for evaluating audio-visual virtual reality systems. This paper present a novel method to evaluate a communication situation based on both the speech intelligibility...

  3. Technical Considerations in the Delivery of Audio-Visual Course Content.

    Science.gov (United States)

    Lightfoot, Jay M.

    2002-01-01

    In an attempt to provide students with the benefit of the latest technology, some instructors include multimedia content on their class Web sites. This article introduces the basic terms and concepts needed to understand the multimedia domain. Provides a brief tutorial designed to help instructors create good, consistent audio-visual content. (AEF)

  4. Audio-visual synchrony and feature-selective attention co-amplify early visual processing.

    Science.gov (United States)

    Keitel, Christian; Müller, Matthias M

    2016-05-01

    Our brain relies on neural mechanisms of selective attention and converging sensory processing to efficiently cope with rich and unceasing multisensory inputs. One prominent assumption holds that audio-visual synchrony can act as a strong attractor for spatial attention. Here, we tested for a similar effect of audio-visual synchrony on feature-selective attention. We presented two superimposed Gabor patches that differed in colour and orientation. On each trial, participants were cued to selectively attend to one of the two patches. Over time, spatial frequencies of both patches varied sinusoidally at distinct rates (3.14 and 3.63 Hz), giving rise to pulse-like percepts. A simultaneously presented pure tone carried a frequency modulation at the pulse rate of one of the two visual stimuli to introduce audio-visual synchrony. Pulsed stimulation elicited distinct time-locked oscillatory electrophysiological brain responses. These steady-state responses were quantified in the spectral domain to examine individual stimulus processing under conditions of synchronous versus asynchronous tone presentation and when respective stimuli were attended versus unattended. We found that both, attending to the colour of a stimulus and its synchrony with the tone, enhanced its processing. Moreover, both gain effects combined linearly for attended in-sync stimuli. Our results suggest that audio-visual synchrony can attract attention to specific stimulus features when stimuli overlap in space. PMID:26226930

  5. Music expertise shapes audiovisual temporal integration windows for speech, sinewave speech and music

    Directory of Open Access Journals (Sweden)

    Hwee Ling eLee

    2014-08-01

    Full Text Available This psychophysics study used musicians as a model to investigate whether musical expertise shapes the temporal integration window for audiovisual speech, sinewave speech or music. Musicians and non-musicians judged the audiovisual synchrony of speech, sinewave analogues of speech, and music stimuli at 13 audiovisual stimulus onset asynchronies (±360, ±300 ±240, ±180, ±120, ±60, and 0 ms. Further, we manipulated the duration of the stimuli by presenting sentences/melodies or syllables/tones. Critically, musicians relative to non-musicians exhibited significantly narrower temporal integration windows for both music and sinewave speech. Further, the temporal integration window for music decreased with the amount of music practice, but not with age of acquisition. In other words, the more musicians practiced piano in the past three years, the more sensitive they became to the temporal misalignment of visual and auditory signals. Collectively, our findings demonstrate that music practicing fine-tunes the audiovisual temporal integration window to various extents depending on the stimulus class. While the effect of piano practicing was most pronounced for music, it also generalized to other stimulus classes such as sinewave speech and to a marginally significant degree to natural speech.

  6. Audiovisual Translation and Assistive Technology: Towards a Universal Design Approach for Online Education

    Science.gov (United States)

    Patiniotaki, Emmanouela

    2016-01-01

    Audiovisual Translation (AVT) and Assistive Technology (AST) are two fields that share common grounds within accessibility-related research, yet they are rarely studied in combination. The reason most often lies in the fact that they have emerged from different disciplines, i.e. Translation Studies and Computer Science, making a possible combined…

  7. Infant Attention to Dynamic Audiovisual Stimuli: Look Duration from 3 to 9 Months of Age

    Science.gov (United States)

    Reynolds, Greg D.; Zhang, Dantong; Guy, Maggie W.

    2013-01-01

    The goal of this study was to examine developmental change in visual attention to dynamic visual and audiovisual stimuli in 3-, 6-, and 9-month-old infants. Infant look duration was measured during exposure to dynamic geometric patterns and Sesame Street video clips under three different stimulus modality conditions: unimodal visual, synchronous…

  8. Effects of Audio-Visual Information on the Intelligibility of Alaryngeal Speech

    Science.gov (United States)

    Evitts, Paul M.; Portugal, Lindsay; Van Dine, Ami; Holler, Aline

    2010-01-01

    Background: There is minimal research on the contribution of visual information on speech intelligibility for individuals with a laryngectomy (IWL). Aims: The purpose of this project was to determine the effects of mode of presentation (audio-only, audio-visual) on alaryngeal speech intelligibility. Method: Twenty-three naive listeners were…

  9. 16 CFR 307.8 - Requirements for disclosure in audiovisual and audio advertising.

    Science.gov (United States)

    2010-01-01

    ... and audio advertising. 307.8 Section 307.8 Commercial Practices FEDERAL TRADE COMMISSION REGULATIONS... ACT OF 1986 Advertising Disclosures § 307.8 Requirements for disclosure in audiovisual and audio... and in graphics so that it is easily legible. If the advertisement has an audio component, the...

  10. Primary School Pupils' Response to Audio-Visual Learning Process in Port-Harcourt

    Science.gov (United States)

    Olube, Friday K.

    2015-01-01

    The purpose of this study is to examine primary school children's response on the use of audio-visual learning processes--a case study of Chokhmah International Academy, Port-Harcourt (owned by Salvation Ministries). It looked at the elements that enhance pupils' response to educational television programmes and their hindrances to these…

  11. Rehabilitation of balance-impaired stroke patients through audio-visual biofeedback

    DEFF Research Database (Denmark)

    Gheorghe, Cristina; Nissen, Thomas; Juul Rosengreen Christensen, Daniel;

    2015-01-01

    This study explored how audio-visual biofeedback influences physical balance of seven balance-impaired stroke patients, between 33–70 years-of-age. The setup included a bespoke balance board and a music rhythm game. The procedure was designed as follows: (1) a control group who performed a balance...

  12. Seminario latinoamericano de didactica de los medios audiovisuales (Latin American Seminar on Teaching with Audiovisual Aids).

    Science.gov (United States)

    Eduplan Informa, 1971

    1971-01-01

    This seminar on the use of audiovisual aids reached several conclusions on the need for and the use of such aids in Latin America. The need for educational innovation in the face of a new society, a new type of communication, and a new vision of man is stressed. A new definition of teaching and learning as a fundamental process of communication is…

  13. Audiovisual training is better than auditory-only training for auditory-only speech-in-noise identification

    OpenAIRE

    Lidestam, Björn; Moradi, Shahram; Pettersson, Rasmus; Ricklefs, Theodor

    2014-01-01

    The effects of audiovisual versus auditory training for speech-in-noise identification were examined in 60 young participants. The training conditions were audiovisual training, auditory-only training, and no training (n = 20 each). In the training groups, gated consonants and words were presented at 0 dB signal-to-noise ratio; stimuli were either audiovisual or auditory-only. The no-training group watched a movie clip without performing a speech identification task. Speech-in-noise identific...

  14. Plan de Empresa de una productora audiovisual de nueva creación en la ciudad de Valencia

    OpenAIRE

    BARBA MUÑOZ, SARA

    2013-01-01

    El presente trabajo ha sido un recorrido acerca de la realización de un plan de empresa audiovisual situada en Valencia. Hemos ideado una empresa audiovisual especialmente dirigida a ofrecer sus productos a las medianas empresas. Hemos analizado el sector audiovisual como un ente en constante crecimiento dado su relación con las nuevas tecnologías; lo que le da categoría de un sector generador de empleo directo; especialmente en los jóvenes que en la actualidad es uno de ...

  15. Energy consumption of audiovisual devices in the residential sector: Economic impact of harmonic losses

    International Nuclear Information System (INIS)

    In this work, energy losses and the economic consequences of the use of small appliances containing power electronics (PE) in the Spanish residential sector were estimated. Audiovisual devices emit harmonics, originating in the distribution system an increment in wiring losses and a greater demand in the total apparent power. Time Use Surveys (2009–10) conducted by the National Statistical Institute in Spain were used to obtain information about the activities occurring in Spanish homes regarding the use of audiovisual equipment. Moreover, measurements of different types of household appliances available in the PANDA database were also utilized, and the active and non-active annual power demand of these residential-sector devices were determined. Although a single audiovisual device has an almost negligible contribution, the aggregated actions of this type of appliances, whose total annual energy demand is greater than 4000 GWh, can be significant enough to be taken into account in any energy efficiency program. It was proven that a reduction in the total harmonic distortion in the distribution systems ranging from 50% to 5% can reduce energy losses significantly, with economic savings of around several million Euros. - Highlights: • Time Use Survey provides information about Spanish household electricity consumption. • The annual aggregated energy demand of audiovisual appliances is very significant. • TV use accounts for more than 80% of household audiovisual electricity consumption. • A reduction from 50% to 5% in the total harmonic distortion would have economic savings of around several million Euros. • Stricter regulations regarding harmonic emissions must be demanded

  16. Audio-visual stimulation improves oculomotor patterns in patients with hemianopia.

    Science.gov (United States)

    Passamonti, Claudia; Bertini, Caterina; Làdavas, Elisabetta

    2009-01-01

    Patients with visual field disorders often exhibit impairments in visual exploration and a typical defective oculomotor scanning behaviour. Recent evidence [Bolognini, N., Rasi, F., Coccia, M., & Làdavas, E. (2005b). Visual search improvement in hemianopic patients after audio-visual stimulation. Brain, 128, 2830-2842] suggests that systematic audio-visual stimulation of the blind hemifield can improve accuracy and search times in visual exploration, probably due to the stimulation of Superior Colliculus (SC), an important multisensory structure involved in both the initiation and execution of saccades. The aim of the present study is to verify this hypothesis by studying the effects of multisensory training on oculomotor scanning behaviour. Oculomotor responses during a visual search task and a reading task were studied before and after visual (control) or audio-visual (experimental) training, in a group of 12 patients with chronic visual field defects and 12 controls subjects. Eye movements were recorded using an infra-red technique which measured a range of spatial and temporal variables. Prior to treatment, patients' performance was significantly different from that of controls in relation to fixations and saccade parameters; after Audio-Visual Training, all patients reported an improvement in ocular exploration characterized by fewer fixations and refixations, quicker and larger saccades, and reduced scanpath length. Overall, these improvements led to a reduction of total exploration time. Similarly, reading parameters were significantly affected by the training, with respect to specific impairments observed in both left- and right-hemianopia readers. Our findings provide evidence that Audio-Visual Training, by stimulating the SC, may induce a more organized pattern of visual exploration due to an implementation of efficient oculomotor strategies. Interestingly, the improvement was found to be stable at a 1 year follow-up control session, indicating a long

  17. Enhanced audio-visual interactions in the auditory cortex of elderly cochlear-implant users.

    Science.gov (United States)

    Schierholz, Irina; Finke, Mareike; Schulte, Svenja; Hauthal, Nadine; Kantzke, Christoph; Rach, Stefan; Büchner, Andreas; Dengler, Reinhard; Sandmann, Pascale

    2015-10-01

    Auditory deprivation and the restoration of hearing via a cochlear implant (CI) can induce functional plasticity in auditory cortical areas. How these plastic changes affect the ability to integrate combined auditory (A) and visual (V) information is not yet well understood. In the present study, we used electroencephalography (EEG) to examine whether age, temporary deafness and altered sensory experience with a CI can affect audio-visual (AV) interactions in post-lingually deafened CI users. Young and elderly CI users and age-matched NH listeners performed a speeded response task on basic auditory, visual and audio-visual stimuli. Regarding the behavioral results, a redundant signals effect, that is, faster response times to cross-modal (AV) than to both of the two modality-specific stimuli (A, V), was revealed for all groups of participants. Moreover, in all four groups, we found evidence for audio-visual integration. Regarding event-related responses (ERPs), we observed a more pronounced visual modulation of the cortical auditory response at N1 latency (approximately 100 ms after stimulus onset) in the elderly CI users when compared with young CI users and elderly NH listeners. Thus, elderly CI users showed enhanced audio-visual binding which may be a consequence of compensatory strategies developed due to temporary deafness and/or degraded sensory input after implantation. These results indicate that the combination of aging, sensory deprivation and CI facilitates the coupling between the auditory and the visual modality. We suggest that this enhancement in multisensory interactions could be used to optimize auditory rehabilitation, especially in elderly CI users, by the application of strong audio-visually based rehabilitation strategies after implant switch-on. PMID:26302946

  18. Suggested Basic Materials for Educable Mentally Retarded Children.

    Science.gov (United States)

    Venturi, Martha J.; And Others

    Printed materials, classroom equipment and audio-visual resources are listed for language arts, arithmetic, social studies, and science for the primary, intermediate, junior high, and senior high levels. Publishers' addresses and descriptions of the materials are given; also included are lists of professional books, bulletins, and curriculum…

  19. 音像制品出版数量变化对图书馆音像资源建设的影响%The influence of publication quantifies of audio-visual products on the consstruction of library audio-visual resources

    Institute of Scientific and Technical Information of China (English)

    宾锋

    2012-01-01

    According to the statistics and analyses of audio-visual products publications from 2005 to 2010, the publication number and annual newly publication number of sound recordings and video products decreased obviously. The amount of CD, VCD and other media carriers reduced, but DVD-A, DVD-V and other new carriers increased. The publication quantities of education, language and other subjects of DVD-A and social sciences, education, comprehensive, music and dance and other subjects raised. Those changes have effects on the construction of library audio-visual resources. On the basis of demand changes, libraries should revise the proettrement rules of au- dio-visual materials in time, they should increase procurement efforts, form emphases and characteristics of collections, optimize the construction of collections, strengthen audio-visual database constructions, expand procurement channels and methods, try to establish a system of audio-visual materials purchase librarian.%对2005年-2010年音像制品出版数量统计分析表明:录音制品和录像制品年出版数量和年新出版数量已呈现明显下降;CD、VCD等载体出版数量下降,DVD-A、DVD-V等新载体出版数量上升;DVD-A中教育、语言等学科以及DVD-V中社会科学、教育、综合、音乐舞蹈等学科的出版量都在增加。这些变化对图书馆音像资源建设产生了影响,建议图书馆应根据需求变化及时修改音像资料采购细则,加大采购力度,形成重点及特色馆藏,优化馆藏建设,加强音像资料数据库建设,拓展采购渠道和采购方式,尝试建立音像资料采访馆员等。

  20. Developing an audiovisual notebook as a self-learning tool in histology: Perceptions of teachers and students

    OpenAIRE

    Campos Sanchez, Antonio; López Núñez, Juan-Antonio; Scionti, Giuseppe; Garzón, Ingrid; González Andrades, Miguel; Alaminos, Miguel; Sola, Tomás

    2013-01-01

    Videos can be used as didactic tools for self-learning under several circumstances, including those cases in which students are responsible for the development of this resource as an audiovisual notebook. We compared students' and teachers' perceptions regarding the main features that an audiovisual notebook should include. Four questionnaires with items about information, images, text and music, and filmmaking were used to investigate students' (n¿=¿115) and teachers' perceptions (n¿=¿28) re...

  1. THE IMPROVEMENT OF AUDIO-VISUAL BASED DANCE APPRECIATION LEARNING AMONG PRIMARY TEACHER EDUCATION STUDENTS OF MAKASSAR STATE UNIVERSITY

    OpenAIRE

    Wahira

    2014-01-01

    This research aimed to improve the skill in appreciating dances owned by the students of Primary Teacher Education of Makassar State University, to improve the perception towards audio-visual based art appreciation, to increase the students’ interest in audio-visual based art education subject, and to increase the students’ responses to the subject. This research was classroom action research using the research design created by Kemmis & MC. Taggart, which was conducted to 42 students of Prim...

  2. Impairment-Factor-Based Audiovisual Quality Model for IPTV: Influence of Video Resolution, Degradation Type, and Content Type

    OpenAIRE

    Garcia MN; Schleicher R; Raake A

    2011-01-01

    This paper presents an audiovisual quality model for IPTV services. The model estimates the audiovisual quality of standard and high definition video as perceived by the user. The model is developed for applications such as network planning and packet-layer quality monitoring. It mainly covers audio and video compression artifacts and impairments due to packet loss. The quality tests conducted for model development demonstrate a mutual influence of the perceived audio and video quality, and ...

  3. A preliminary study of audiovisual integration of roundedness in front vowels : limitation due to discrepancy in jaw depression

    OpenAIRE

    Öhrström, Niklas

    2010-01-01

    Audiovisual integration of vowel roundedness was investigated, as the discrepancy in jaw depression increased. The results show that the relative visual impact on perceived roundedness decreases at larger discrepancies. The results may suggest that this tendency would be stronger among acoustically presented [i] than [y]. To verify this, more research with talking heads may be required. The results confirm earlier findings that audiovisual integration doesn’t require unconsciousness among sub...

  4. "I am, I am nothing, I am a story ever told": Performing personas - erotic expression in audiovisual performances Ney Matogrosso the authorization context of a dictatorship

    Directory of Open Access Journals (Sweden)

    Robson Pereira da Silva

    2016-01-01

    Full Text Available There is, in this article, the research into the performing transgressions of Ney Matogrosso in the context of the Brazilian dictatorship civil military. Thus, we understand the marginal personas (types / archetypes displayed procedurally in performative procedures artist Ney Matogrosso (phonogram, cover, brochure, spectacles, meaning his work over the years 1970 and 1980. The artist, in his works, reverses the concepts governed by affluent culture, this practice, consisting of audiovisual materials, widespread in the cultural industry, which ensures historically the performer of the production of the materiality of Music Popular Brazilian (MPB - recording performance. This study highlights the historicity of aesthetic subversion in Ney Matogrosso, as a front political attitude to the producer authoritarian regime prohibitions the erotic potential.

  5. El relato audiovisual publicitario del siglo XXI. Del medio televisión al medio internet. ¿Nuevos medios o nuevas formas de consumo audiovisual?

    OpenAIRE

    Martín Casado, Teresa Gema; Echazarreta Soler, Carmen; Vinyals i Corney, Manel

    2012-01-01

    Estudiar la comunicación publicitaria del siglo XXI nos permite entender la importancia del desarrollo actual de este tipo de comunicación. Sin duda un desarrollo que afecta enormemente en el modo en que las marcas llevan a cabo sus estrategias de publicidad con su público. Pero sin duda el formato audiovisual sigue siendo el formato más utilizado por anunciantes y agencias para contactar con su público. El siglo XX estuvo definido por el desarrollo del medio televisión, el ...

  6. Stream Weight Training Based on MCE for Audio-Visual LVCSR

    Institute of Scientific and Technical Information of China (English)

    LIU Peng; WANG Zuoying

    2005-01-01

    In this paper we address the problem of audio-visual speech recognition in the framework of the multi-stream hidden Markov model. Stream weight training based on minimum classification error criterion is discussed for use in large vocabulary continuous speech recognition (LVCSR). We present the lattice re-scoring and Viterbi approaches for calculating the loss function of continuous speech. The experimental results show that in the case of clean audio, the system performance can be improved by 36.1% in relative word error rate reduction when using state-based stream weights trained by a Viterbi approach, compared to an audio only speech recognition system. Further experimental results demonstrate that our audio-visual LVCSR system provides significant enhancement of robustness in noisy environments.

  7. Bimodal bilingualism as multisensory training?: Evidence for improved audiovisual speech perception after sign language exposure.

    Science.gov (United States)

    Williams, Joshua T; Darcy, Isabelle; Newman, Sharlene D

    2016-02-15

    The aim of the present study was to characterize effects of learning a sign language on the processing of a spoken language. Specifically, audiovisual phoneme comprehension was assessed before and after 13 weeks of sign language exposure. L2 ASL learners performed this task in the fMRI scanner. Results indicated that L2 American Sign Language (ASL) learners' behavioral classification of the speech sounds improved with time compared to hearing nonsigners. Results indicated increased activation in the supramarginal gyrus (SMG) after sign language exposure, which suggests concomitant increased phonological processing of speech. A multiple regression analysis indicated that learner's rating on co-sign speech use and lipreading ability was correlated with SMG activation. This pattern of results indicates that the increased use of mouthing and possibly lipreading during sign language acquisition may concurrently improve audiovisual speech processing in budding hearing bimodal bilinguals. PMID:26740404

  8. The temporal binding window for audiovisual speech: Children are like little adults.

    Science.gov (United States)

    Hillock-Dunn, Andrea; Grantham, D Wesley; Wallace, Mark T

    2016-07-29

    During a typical communication exchange, both auditory and visual cues contribute to speech comprehension. The influence of vision on speech perception can be measured behaviorally using a task where incongruent auditory and visual speech stimuli are paired to induce perception of a novel token reflective of multisensory integration (i.e., the McGurk effect). This effect is temporally constrained in adults, with illusion perception decreasing as the temporal offset between the auditory and visual stimuli increases. Here, we used the McGurk effect to investigate the development of the temporal characteristics of audiovisual speech binding in 7-24 year-olds. Surprisingly, results indicated that although older participants perceived the McGurk illusion more frequently, no age-dependent change in the temporal boundaries of audiovisual speech binding was observed. PMID:26920938

  9. The early maximum likelihood estimation model of audiovisual integration in speech perception

    DEFF Research Database (Denmark)

    Andersen, Tobias

    2015-01-01

    Speech perception is facilitated by seeing the articulatory mouth movements of the talker. This is due to perceptual audiovisual integration, which also causes the McGurk−MacDonald illusion, and for which a comprehensive computational account is still lacking. Decades of research have largely...... focused on the fuzzy logical model of perception (FLMP), which provides excellent fits to experimental observations but also has been criticized for being too flexible, post hoc and difficult to interpret. The current study introduces the early maximum likelihood estimation (MLE) model of audiovisual...... integration to speech perception along with three model variations. In early MLE, integration is based on a continuous internal representation before categorization, which can make the model more parsimonious by imposing constraints that reflect experimental designs. The study also shows that cross...

  10. La estacíon de trabajo del traductor audiovisual: Herramientas y Recursos.

    Directory of Open Access Journals (Sweden)

    Anna Matamala

    2005-01-01

    Full Text Available En este artículo abordamos la relación entre traducción audiovisual y nuevas tecnologías y describimos las características que tiene la estación de trabajo del traductor audiovisual, especialmente en el caso del doblaje y del voice- over. Después de presentar las herramientas que necesita el traductor para llevar a cabo satisfactoriamente su tarea y apuntar vías de futuro, presentamos una relación de recursos que suele consultar para resolver los problemas de traducción, haciendo hincapié en los que están disponibles en Internet.

  11. Alfasecuencialización : la enseñanza del cine en la era audiovisual

    OpenAIRE

    Palao Errando, José Antonio

    2007-01-01

    En la llamada «sociedad de la información» los estudios sobre cine se han visto diluidos en el abordaje pragmático y tecnológico del discurso audiovisual, así como la propia fruición del cine se ha visto atrapada en la red del DVD y del hipertexto. El propio cine reacciona ante ello a través de estructuras narrativas complejas que lo alejan del discurso audiovisual estándar. La función de los estudios sobre cine y de su enseñanza universitaria debe ser la reintroducción del sujeto rechazado d...

  12. Prioritized MPEG-4 Audio-Visual Objects Streaming over the DiffServ

    Institute of Scientific and Technical Information of China (English)

    HUANG Tian-yun; ZHENG Chan

    2005-01-01

    The object-based scalable coding in MPEG-4 is investigated, and a prioritized transmission scheme of MPEG-4 audio-visual objects (AVOs) over the DiffServ network with the QoS guarantee is proposed. MPEG-4 AVOs are extracted and classified into different groups according to their priority values and scalable layers (visual importance). These priority values are mapped to the IP DiffServ per hop behaviors (PHB). This scheme can selectively discard packets with low importance, in order to avoid the network congestion. Simulation results show that the quality of received video can gracefully adapt to network state, as compared with the 'best-effort' manner. Also, by allowing the content provider to define prioritization of each audio-visual object, the adaptive transmission of object-based scalable video can be customized based on the content.

  13. Modulations of 'late' event-related brain potentials in humans by dynamic audiovisual speech stimuli.

    Science.gov (United States)

    Lebib, Riadh; Papo, David; Douiri, Abdel; de Bode, Stella; Gillon Dowens, Margaret; Baudonnière, Pierre-Marie

    2004-11-30

    Lipreading reliably improve speech perception during face-to-face conversation. Within the range of good dubbing, however, adults tolerate some audiovisual (AV) discrepancies and lipreading, then, can give rise to confusion. We used event-related brain potentials (ERPs) to study the perceptual strategies governing the intermodal processing of dynamic and bimodal speech stimuli, either congruently dubbed or not. Electrophysiological analyses revealed that non-coherent audiovisual dubbings modulated in amplitude an endogenous ERP component, the N300, we compared to a 'N400-like effect' reflecting the difficulty to integrate these conflicting pieces of information. This result adds further support for the existence of a cerebral system underlying 'integrative processes' lato sensu. Further studies should take advantage of this 'N400-like effect' with AV speech stimuli to open new perspectives in the domain of psycholinguistics. PMID:15531091

  14. User requirements for multimedia indexing and retrieval of unedited audio-visual footage - RUSHES

    OpenAIRE

    Schreer, O; Fuentes Ardeo, L; Sotiriou, D.; Sadka, A.H.; Izquierdo, E

    2008-01-01

    Multimedia analysis and reuse of raw un-edited audio visual content known as rushes is gaining acceptance by a large number of research labs and companies. A set of research projects are considering multimedia indexing, annotation, search and retrieval in the context of European funded research, but only the FP6 project RUSHES is focusing on automatic semantic annotation, indexing and retrieval of raw and un-edited audio-visual content. Even professional content creators and providers as well...

  15. Composition and role of convergent technological repertoires in audiovisual media consumption

    OpenAIRE

    Courtois, Cédric; de Marez, Lieven; Verdegem, Pieter

    2014-01-01

    This mixed-method research focuses on the growing appropriation of multiple screen devices for audiovisual media consumption. Based on survey measures, we distinguish thee patterns: (a) maintaining the status quo, by mainly drawing upon television, (b) broadening up the repertoire, by extending television with computers and mobile devices, or (c) even replacing television by a computer. Next, we draw upon insights form niche theory, rationalizing media choices in terms of competing gratificat...

  16. Towards Audio-Visual On-line Diarization Of Participants In Group Meetings

    OpenAIRE

    Hung, Hayley; FRIEDLAND, Gerald

    2008-01-01

    We propose a fully automated, unsupervised, and non-int\\-rusive method of identifying the current speaker audio-vis\\-ually in a group conversation. This is achieved without specialized hardware, user interaction, or prior assignment of microphones to participants. Speakers are identified acoustically using a novel on-line speaker diarization approach. The output is then used to find the corresponding person in a four-camera video stream by approximating individual activity with computationall...

  17. Commissioning and quality assurance for a respiratory training system based on audiovisual biofeedback

    OpenAIRE

    Cui, Guoqiang; Gopalan, Siddharth; Yamamoto, Tokihiro; Berger, Jonathan; Maxim, Peter G.; Keall, Paul J.

    2010-01-01

    A respiratory training system based on audiovisual biofeedback has been implemented at our institution. It is intended to improve patients’ respiratory regularity during four-dimensional (4D) computed tomography (CT) image acquisition. The purpose is to help eliminate the artifacts in 4D-CT images caused by irregular breathing, as well as improve delivery efficiency during treatment, where respiratory irregularity is a concern. This article describes the commissioning and quality assurance (Q...

  18. Desarrollo de la materia Proyectos. Grado de Comunicación Audiovisual. Universitat de Barcelona

    OpenAIRE

    Romeo Delgado, Marina; Yepes i Baldó, Montserrat; Burset Burillo, Sílvia; García Asensio, Ma. Ángeles; González Argüello, Ma. Vicenta (María Vicenta); Sánchez, Lydia; Berger, Rita

    2012-01-01

    El objetivo del presente trabajo es presentar la propuesta de desarrollo de la materia Proyectos del Grado de Comunicación Audiovisual de la Universidad de Barcelona, que incluye las asignaturas Proyectos I y Proyectos II. Ambas asignaturas son especialmente idóneas para trabajar las competencias transversales del grado, dado que el objetivo de la materia a la que pertenecen es integrar las competencias adquiridas en el conjunto de asignaturas cursadas por los alumnos hasta este momento, poni...

  19. Audiovisual associations alter the perception of low-level visual motion

    OpenAIRE

    Hulusi Kafaligonul; Can Oluk

    2015-01-01

    Motion perception is a pervasive nature of vision and is affected by both immediate pattern of sensory inputs and prior experiences acquired through associations. Recently, several studies reported that an association can be established quickly between directions of visual motion and static sounds of distinct frequencies. After the association is formed, sounds are able to change the perceived direction of visual motion. To determine whether such rapidly acquired audiovisual associations and ...

  20. Audiovisual benefit for recognition of speech presented with single-talker noise in older listeners

    OpenAIRE

    Jesse, A.; Janse, E.

    2012-01-01

    Older listeners are more affected than younger listeners in their recognition of speech in adverse conditions, such as when they also hear a single-competing speaker. In the present study, we investigated with a speeded response task whether older listeners with various degrees of hearing loss benefit under such conditions from also seeing the speaker they intend to listen to. We also tested, at the same time, whether older adults need postperceptual processing to obtain an audiovisual benefi...

  1. Speech Enhancement and Recognition in Meetings with an Audio-Visual Sensor Array

    OpenAIRE

    Maganti, Hari Krishna; Gatica-Perez, Daniel; McCowan, Iain A.

    2006-01-01

    We address the problem of distant speech acquisition in multi-party meetings, using multiple microphones and cameras. Microphone array beamforming techniques present a potential alternative to close-talking microphones by providing speech enhancement through spatial filtering and directional discrimination. Beamforming techniques rely on the knowledge of a speaker location. In this paper, we present an integrated approach, in which an audio-visual multi-person tracker is used to track active ...

  2. Multisensory Perceptual Learning of Temporal Order: Audiovisual Learning Transfers to Vision but Not Audition

    OpenAIRE

    David Alais; John Cass

    2010-01-01

    BACKGROUND: An outstanding question in sensory neuroscience is whether the perceived timing of events is mediated by a central supra-modal timing mechanism, or multiple modality-specific systems. We use a perceptual learning paradigm to address this question. METHODOLOGY/PRINCIPAL FINDINGS: Three groups were trained daily for 10 sessions on an auditory, a visual or a combined audiovisual temporal order judgment (TOJ). Groups were pre-tested on a range TOJ tasks within and between their group ...

  3. Auditory Perceptual Learning for Speech Perception Can Be Enhanced by Audiovisual Training

    Directory of Open Access Journals (Sweden)

    LynneEBernstein

    2013-03-01

    Full Text Available Speech perception under audiovisual conditions is well known to confer benefits to perception such as increased speed and accuracy. Here, we investigated how audiovisual training might benefit or impede auditory perceptual learning speech degraded by vocoding. In Experiments 1 and 3, participants learned paired associations between vocoded spoken nonsense words and nonsense pictures in a protocol with a fixed number of trials. In Experiment 1, paired-associates (PA audiovisual (AV training of one group of participants was compared with audio-only (AO training of another group. When tested under AO conditions, the AV-trained group was significantly more accurate than the AO-trained group. In addition, pre- and post-training AO forced-choice consonant identification with untrained nonsense words showed that AV-trained participants had learned significantly more than AO participants. The pattern of results pointed to their having learned at the level of the auditory phonetic features of the vocoded stimuli. Experiment 2, a no-training control with testing and re-testing on the AO consonant identification, showed that the controls were as accurate as the AO-trained participants in Experiment 1 but less accurate than the AV-trained participants. In Experiment 3, PA training alternated AV and AO conditions on a list-by-list basis within participants, and training was to criterion (92% correct. PA training with AO stimuli was reliably more effective than training with AV stimuli. We explain these discrepant results in terms of the so-called "reverse hierarchy theory" of perceptual learning and in terms of the diverse multisensory and unisensory processing resources available to speech perception. We propose that early audiovisual speech integration can potentially impede auditory perceptual learning; but visual top-down access to relevant auditory features can promote auditory perceptual learning.

  4. Audiovisual integration in near and far space: effects of changes in distance and stimulus effectiveness.

    Science.gov (United States)

    Van der Stoep, N; Van der Stigchel, S; Nijboer, T C W; Van der Smagt, M J

    2016-05-01

    A factor that is often not considered in multisensory research is the distance from which information is presented. Interestingly, various studies have shown that the distance at which information is presented can modulate the strength of multisensory interactions. In addition, our everyday multisensory experience in near and far space is rather asymmetrical in terms of retinal image size and stimulus intensity. This asymmetry is the result of the relation between the stimulus-observer distance and its retinal image size and intensity: an object that is further away is generally smaller on the retina as compared to the same object when it is presented nearer. Similarly, auditory intensity decreases as the distance from the observer increases. We investigated how each of these factors alone, and their combination, affected audiovisual integration. Unimodal and bimodal stimuli were presented in near and far space, with and without controlling for distance-dependent changes in retinal image size and intensity. Audiovisual integration was enhanced for stimuli that were presented in far space as compared to near space, but only when the stimuli were not corrected for visual angle and intensity. The same decrease in intensity and retinal size in near space did not enhance audiovisual integration, indicating that these results cannot be explained by changes in stimulus efficacy or an increase in distance alone, but rather by an interaction between these factors. The results are discussed in the context of multisensory experience and spatial uncertainty, and underline the importance of studying multisensory integration in the depth space. PMID:25788009

  5. Creación colectiva audiovisual y cultura colaborativa online. Proyectos y estrategias

    Directory of Open Access Journals (Sweden)

    Jordi Alberich Pascual

    2012-04-01

    Full Text Available El presente artículo analiza el desarrollo creciente de proyectos audiovisuales de creación colectiva en y a través de Internet. Para ello, se exploran en primer lugar las implicaciones para la redefinición de la función-autor tradicional que posibilitan los sistemas interactivos multimedia, así como su vinculación con estrategias de trabajo colaborativo en red. A continuación, centramos nuestra atención en el uso y desarrollo de recursos de software libre audiovisual, como ejemplo paradigmático de la vitalidad de una creciente cultura colaborativa en el ámbito audiovisual contemporáneo. Finalmente, el artículo concluye estableciendo las claves identificativas básicas de tres aproximaciones diferenciadas a las tareas y estrategias de trabajo implicadas en los proyectos de creación colectiva audiovisual analizados en el curso de nuestra investigación.

  6. Electrophysiological correlates of individual differences in perception of audiovisual temporal asynchrony.

    Science.gov (United States)

    Kaganovich, Natalya; Schumaker, Jennifer

    2016-06-01

    Sensitivity to the temporal relationship between auditory and visual stimuli is key to efficient audiovisual integration. However, even adults vary greatly in their ability to detect audiovisual temporal asynchrony. What underlies this variability is currently unknown. We recorded event-related potentials (ERPs) while participants performed a simultaneity judgment task on a range of audiovisual (AV) and visual-auditory (VA) stimulus onset asynchronies (SOAs) and compared ERP responses in good and poor performers to the 200ms SOA, which showed the largest individual variability in the number of synchronous perceptions. Analysis of ERPs to the VA200 stimulus yielded no significant results. However, those individuals who were more sensitive to the AV200 SOA had significantly more positive voltage between 210 and 270ms following the sound onset. In a follow-up analysis, we showed that the mean voltage within this window predicted approximately 36% of variability in sensitivity to AV temporal asynchrony in a larger group of participants. The relationship between the ERP measure in the 210-270ms window and accuracy on the simultaneity judgment task also held for two other AV SOAs with significant individual variability -100 and 300ms. Because the identified window was time-locked to the onset of sound in the AV stimulus, we conclude that sensitivity to AV temporal asynchrony is shaped to a large extent by the efficiency in the neural encoding of sound onsets. PMID:27094850

  7. The cortical representation of the speech envelope is earlier for audiovisual speech than audio speech.

    Science.gov (United States)

    Crosse, Michael J; Lalor, Edmund C

    2014-04-01

    Visual speech can greatly enhance a listener's comprehension of auditory speech when they are presented simultaneously. Efforts to determine the neural underpinnings of this phenomenon have been hampered by the limited temporal resolution of hemodynamic imaging and the fact that EEG and magnetoencephalographic data are usually analyzed in response to simple, discrete stimuli. Recent research has shown that neuronal activity in human auditory cortex tracks the envelope of natural speech. Here, we exploit this finding by estimating a linear forward-mapping between the speech envelope and EEG data and show that the latency at which the envelope of natural speech is represented in cortex is shortened by >10 ms when continuous audiovisual speech is presented compared with audio-only speech. In addition, we use a reverse-mapping approach to reconstruct an estimate of the speech stimulus from the EEG data and, by comparing the bimodal estimate with the sum of the unimodal estimates, find no evidence of any nonlinear additive effects in the audiovisual speech condition. These findings point to an underlying mechanism that could account for enhanced comprehension during audiovisual speech. Specifically, we hypothesize that low-level acoustic features that are temporally coherent with the preceding visual stream may be synthesized into a speech object at an earlier latency, which may provide an extended period of low-level processing before extraction of semantic information. PMID:24401714

  8. Audiovisual associations alter the perception of low-level visual motion

    Directory of Open Access Journals (Sweden)

    Hulusi Kafaligonul

    2015-03-01

    Full Text Available Motion perception is a pervasive nature of vision and is affected by both immediate pattern of sensory inputs and prior experiences acquired through associations. Recently, several studies reported that an association can be established quickly between directions of visual motion and static sounds of distinct frequencies. After the association is formed, sounds are able to change the perceived direction of visual motion. To determine whether such rapidly acquired audiovisual associations and their subsequent influences on visual motion perception are dependent on the involvement of higher-order attentive tracking mechanisms, we designed psychophysical experiments using regular and reverse-phi random dot motions isolating low-level pre-attentive motion processing. Our results show that an association between the directions of low-level visual motion and static sounds can be formed and this audiovisual association alters the subsequent perception of low-level visual motion. These findings support the view that audiovisual associations are not restricted to high-level attention based motion system and early-level visual motion processing has some potential role.

  9. On the Importance of Audiovisual Coherence for the Perceived Quality of Synthesized Visual Speech

    Directory of Open Access Journals (Sweden)

    Wesley Mattheyses

    2009-01-01

    Full Text Available Audiovisual text-to-speech systems convert a written text into an audiovisual speech signal. Typically, the visual mode of the synthetic speech is synthesized separately from the audio, the latter being either natural or synthesized speech. However, the perception of mismatches between these two information streams requires experimental exploration since it could degrade the quality of the output. In order to increase the intermodal coherence in synthetic 2D photorealistic speech, we extended the well-known unit selection audio synthesis technique to work with multimodal segments containing original combinations of audio and video. Subjective experiments confirm that the audiovisual signals created by our multimodal synthesis strategy are indeed perceived as being more synchronous than those of systems in which both modes are not intrinsically coherent. Furthermore, it is shown that the degree of coherence between the auditory mode and the visual mode has an influence on the perceived quality of the synthetic visual speech fragment. In addition, the audio quality was found to have only a minor influence on the perceived visual signal's quality.

  10. Brain mechanisms that underlie the effects of motivational audiovisual stimuli on psychophysiological responses during exercise.

    Science.gov (United States)

    Bigliassi, Marcelo; Silva, Vinícius B; Karageorghis, Costas I; Bird, Jonathan M; Santos, Priscila C; Altimari, Leandro R

    2016-05-01

    Motivational audiovisual stimuli such as music and video have been widely used in the realm of exercise and sport as a means by which to increase situational motivation and enhance performance. The present study addressed the mechanisms that underlie the effects of motivational stimuli on psychophysiological responses and exercise performance. Twenty-two participants completed fatiguing isometric handgrip-squeezing tasks under two experimental conditions (motivational audiovisual condition and neutral audiovisual condition) and a control condition. Electrical activity in the brain and working muscles was analyzed by use of electroencephalography and electromyography, respectively. Participants were asked to squeeze the dynamometer maximally for 30s. A single-item motivation scale was administered after each squeeze. Results indicated that task performance and situational motivational were superior under the influence of motivational stimuli when compared to the other two conditions (~20% and ~25%, respectively). The motivational stimulus downregulated the predominance of low-frequency waves (theta) in the right frontal regions of the cortex (F8), and upregulated high-frequency waves (beta) in the central areas (C3 and C4). It is suggested that motivational sensory cues serve to readjust electrical activity in the brain; a mechanism by which the detrimental effects of fatigue on the efferent control of working muscles is ameliorated. PMID:26948160

  11. Audiovisual Integration of Speech in a Patient with Broca’s Aphasia

    Directory of Open Access Journals (Sweden)

    Tobias Søren Andersen

    2015-04-01

    Full Text Available Lesions to Broca’s area cause aphasia characterised by a severe impairment of the ability to speak, with comparatively intact speech perception. However, some studies have found effects on speech perception under adverse listening conditions, indicating that Broca’s area is also involved in speech perception. While these studies have focused on auditory speech perception other studies have shown that Broca’s area is activated by visual speech perception. Furthermore, one preliminary report found that a patient with Broca’s aphasia did not experience the McGurk illusion suggesting that an intact Broca’s area is necessary for audiovisual integration of speech. Here we describe a patient with Broca’s aphasia who experienced the McGurk illusion. This indicates that an intact Broca’s area is not necessary for audiovisual integration of speech. The McGurk illusions this patient experienced were atypical, which could be due to Broca’s area having a more subtle role in audiovisual integration of speech. The McGurk illusions of a control subject with Wernicke’s aphasia were, however, also atypical. This indicates that the atypical McGurk illusions were due to deficits in speech processing that are not specific to Broca’s aphasia.

  12. Bibliography of Multi-Ethnic and Sex-Fair Resource Materials.

    Science.gov (United States)

    Massachusetts State Dept. of Education, Boston. Bureau of Equal Educational Opportunities.

    This annotated bibliography lists both nondiscriminatory instructional materials (largely audio-visual) for classroom use and works for teachers' use that promote multi-ethnic and sex fair education. The materials listed include films, filmstrips, slide presentations and video tapes, bibliographies of curriculum materials, books, handbooks and…

  13. Materials on Creative Arts (Arts, Crafts, Dance, Drama, Music, Bibliotherapy) for Persons with Handicapping Conditions. Revised.

    Science.gov (United States)

    American Alliance for Health, Physical Education, and Recreation, Washington, DC. Information and Research Utilization Center.

    Intended as a resource guide for persons who include such subjects as arts, crafts, dance, and music in programs for the handicapped, resources are listed for printed materials, audiovisual materials, resource persons and organizations, and material and equipment suppliers. Brief literature reviews sum up the state of the art in the specific art…

  14. Theoretical and methodological notes on visual and audiovisual sources in researches on Life Stories and Self-referential Memorials

    Directory of Open Access Journals (Sweden)

    Maria Helena Menna Barreto Abrahão

    2014-01-01

    Full Text Available The text explicits the reflection that bases the use of pictures, films and videofilms as sources in research on Life Stories and Self-re- ferential Memorials in Teachers’ Education. After refering to the researches in which we use this support since 1988, we work with two complementary pairs of theoretical dimensions of narratives in visual and audiovisual sources and their use in such empirical rese- arch: subjectivity/truth and space/time. These dimensions are worked grounded in Barthes (1984 to propose an interpretative effort of these sources to understand the essence of photography according to the photographer and the essence of photography according to the photographed person concocted to the essence of photography according to the researcher. The Barthesian constructs studium and punctum are applied to reading the narratives of the filmic and pho- tographic material, reaching the more radical expression of the Bar- thesian puctum: real or representational death of the referent that serves the photos and movies. The discussion of these dimensions for the analysis of (audio visual sources is complemented with the support of several other authors.

  15. Investigating the impact of audio instruction and audio-visual biofeedback for lung cancer radiation therapy

    Science.gov (United States)

    George, Rohini

    Lung cancer accounts for 13% of all cancers in the Unites States and is the leading cause of deaths among both men and women. The five-year survival for lung cancer patients is approximately 15%.(ACS facts & figures) Respiratory motion decreases accuracy of thoracic radiotherapy during imaging and delivery. To account for respiration, generally margins are added during radiation treatment planning, which may cause a substantial dose delivery to normal tissues and increase the normal tissue toxicity. To alleviate the above-mentioned effects of respiratory motion, several motion management techniques are available which can reduce the doses to normal tissues, thereby reducing treatment toxicity and allowing dose escalation to the tumor. This may increase the survival probability of patients who have lung cancer and are receiving radiation therapy. However the accuracy of these motion management techniques are inhibited by respiration irregularity. The rationale of this thesis was to study the improvement in regularity of respiratory motion by breathing coaching for lung cancer patients using audio instructions and audio-visual biofeedback. A total of 331 patient respiratory motion traces, each four minutes in length, were collected from 24 lung cancer patients enrolled in an IRB-approved breathing-training protocol. It was determined that audio-visual biofeedback significantly improved the regularity of respiratory motion compared to free breathing and audio instruction, thus improving the accuracy of respiratory gated radiotherapy. It was also observed that duty cycles below 30% showed insignificant reduction in residual motion while above 50% there was a sharp increase in residual motion. The reproducibility of exhale based gating was higher than that of inhale base gating. Modeling the respiratory cycles it was found that cosine and cosine 4 models had the best correlation with individual respiratory cycles. The overall respiratory motion probability distribution

  16. Propuestas para la investigavción en comunicación audiovisual: publicidad social y creación colectiva en Internet / Research proposals for audiovisual communication: social advertising and collective creation on the internet

    Directory of Open Access Journals (Sweden)

    Teresa Fraile Prieto

    2011-09-01

    Full Text Available Resumen: La sociedad de la información digital plantea nuevos retos a los investigadores. A mediada que la comunicación audiovisual se ha consolidado como disciplina, los estudios culturales se muestran como una perspectiva de análisis ventajosa para acercarse a las nuevas prácticas creativas y de consumo del medio audiovisual. Este artículo defiende el estudio de los productos culturales audiovisuales que esta sociedad digital produce por cuanto son un testimonio de los cambios sociales que se operan en ella. En concreto se propone el acercamiento a la publicidad social y a los objetos de creación colectiva en Internet como medio para conocer las circunstancias de nuestra sociedad. Abstract: The information society poses new challenges to researchers. While audiovisual communication has been consolidated as a discipline, cultural studies is an advantageous analytical perspective to approach the new creative practices and consumption of audiovisual media. This article defends the study of audiovisual cultural products produced by the digital society because they are a testimony of the social changes taking place in it. Specifically, it proposes an approach to social advertising and objects of collective creation on the Internet as a means to know the circumstances of our society.

  17. 36 CFR 1237.26 - What materials and processes must agencies use to create audiovisual records?

    Science.gov (United States)

    2010-07-01

    ...) If using reversal type processing, require full photographic reversal; i.e., develop, bleach, expose... stock and blank optical media (e.g., DVD and CD), for original copies of permanent, long-term temporary... audio recordings on optical media from major manufacturers. Avoid using cassettes as originals...

  18. Modelado de sistemas multimedia para personalización y recomendación híbrida a partir del consumo audiovisual de los usuarios

    OpenAIRE

    Sánchez García, Faustino Ángel

    2012-01-01

    This doctoral thesis focuses on the modeling of multimedia systems to create personalized recommendation services based on the analysis of users’ audiovisual consumption. Research is focused on the characterization of both users’ audiovisual consumption and content, specifically images and video. This double characterization converges into a hybrid recommendation algorithm, adapted to different application scenarios covering different specificities and constraints. Hybrid recommendation syste...

  19. Audiovisual Speech Perception in Infancy: The Influence of Vowel Identity and Infants' Productive Abilities on Sensitivity to (Mis)Matches between Auditory and Visual Speech Cues

    Science.gov (United States)

    Altvater-Mackensen, Nicole; Mani, Nivedita; Grossmann, Tobias

    2016-01-01

    Recent studies suggest that infants' audiovisual speech perception is influenced by articulatory experience (Mugitani et al., 2008; Yeung & Werker, 2013). The current study extends these findings by testing if infants' emerging ability to produce native sounds in babbling impacts their audiovisual speech perception. We tested 44 6-month-olds…

  20. REPORT ON MEETING OF DIRECTORS OF NATIONAL AUDIO-VISUAL SERVICES AND DOCUMENTARY FILM UNITS IN SOUTH AND EAST ASIA, KUALA LUMPUR, 31 JULY - AUGUST 1961.

    Science.gov (United States)

    United Nations Educational, Scientific, and Cultural Organization, Paris (France).

    THE PURPOSE OF THIS MEETING WAS TO DEVELOP COOPERATIVE ACTION IN ASIA IN THE FIELD OF AUDIOVISUAL AIDS IN EDUCATION, BASED ON THE WORK OF EXISTING NATIONAL AUDIOVISUAL SERVICES AND DOCUMENTARY FILM UNITS AND TO CONSIDER COOPERATION BETWEEN THESE SERVICES AND UNITS AND THE INTERNATIONAL COUNCIL FOR EDUCATIONAL FILMS. THE FOLLOWING AGENDA WAS…

  1. Classificació dels gèneres audiovisuals a la xarxa i estudi dels seus formats

    OpenAIRE

    Frigola i Reig, Joan

    2012-01-01

    Aquesta tesi doctoral té com a objecte d’estudi els gèneres audiovisuals que es troben a la xarxa. A partir de l’anàlisi de les produccions de clips de vídeo originals que s’exhibeixen i distribueixen per Internet, és a dir, els continguts audiovisuals creats pels usuaris (UGC), es pretén arribar a una primera proposta de classificació per gèneres i/o formats. Els canvis tecnològics i socials han propiciat que les eines per a la producció audiovisual no estiguin només a l’abast dels profe...

  2. Timing in audiovisual speech perception: A mini review and new psychophysical data.

    Science.gov (United States)

    Venezia, Jonathan H; Thurman, Steven M; Matchin, William; George, Sahara E; Hickok, Gregory

    2016-02-01

    Recent influential models of audiovisual speech perception suggest that visual speech aids perception by generating predictions about the identity of upcoming speech sounds. These models place stock in the assumption that visual speech leads auditory speech in time. However, it is unclear whether and to what extent temporally-leading visual speech information contributes to perception. Previous studies exploring audiovisual-speech timing have relied upon psychophysical procedures that require artificial manipulation of cross-modal alignment or stimulus duration. We introduce a classification procedure that tracks perceptually relevant visual speech information in time without requiring such manipulations. Participants were shown videos of a McGurk syllable (auditory /apa/ + visual /aka/ = perceptual /ata/) and asked to perform phoneme identification (/apa/ yes-no). The mouth region of the visual stimulus was overlaid with a dynamic transparency mask that obscured visual speech in some frames but not others randomly across trials. Variability in participants' responses (~35 % identification of /apa/ compared to ~5 % in the absence of the masker) served as the basis for classification analysis. The outcome was a high resolution spatiotemporal map of perceptually relevant visual features. We produced these maps for McGurk stimuli at different audiovisual temporal offsets (natural timing, 50-ms visual lead, and 100-ms visual lead). Briefly, temporally-leading (~130 ms) visual information did influence auditory perception. Moreover, several visual features influenced perception of a single speech sound, with the relative influence of each feature depending on both its temporal relation to the auditory signal and its informational content. PMID:26669309

  3. Multisensory perceptual learning of temporal order: audiovisual learning transfers to vision but not audition.

    Directory of Open Access Journals (Sweden)

    David Alais

    Full Text Available BACKGROUND: An outstanding question in sensory neuroscience is whether the perceived timing of events is mediated by a central supra-modal timing mechanism, or multiple modality-specific systems. We use a perceptual learning paradigm to address this question. METHODOLOGY/PRINCIPAL FINDINGS: Three groups were trained daily for 10 sessions on an auditory, a visual or a combined audiovisual temporal order judgment (TOJ. Groups were pre-tested on a range TOJ tasks within and between their group modality prior to learning so that transfer of any learning from the trained task could be measured by post-testing other tasks. Robust TOJ learning (reduced temporal order discrimination thresholds occurred for all groups, although auditory learning (dichotic 500/2000 Hz tones was slightly weaker than visual learning (lateralised grating patches. Crossmodal TOJs also displayed robust learning. Post-testing revealed that improvements in temporal resolution acquired during visual learning transferred within modality to other retinotopic locations and orientations, but not to auditory or crossmodal tasks. Auditory learning did not transfer to visual or crossmodal tasks, and neither did it transfer within audition to another frequency pair. In an interesting asymmetry, crossmodal learning transferred to all visual tasks but not to auditory tasks. Finally, in all conditions, learning to make TOJs for stimulus onsets did not transfer at all to discriminating temporal offsets. These data present a complex picture of timing processes. CONCLUSIONS/SIGNIFICANCE: The lack of transfer between unimodal groups indicates no central supramodal timing process for this task; however, the audiovisual-to-visual transfer cannot be explained without some form of sensory interaction. We propose that auditory learning occurred in frequency-tuned processes in the periphery, precluding interactions with more central visual and audiovisual timing processes. Functionally the patterns

  4. SU-E-J-29: Audiovisual Biofeedback Improves Tumor Motion Consistency for Lung Cancer Patients

    International Nuclear Information System (INIS)

    Purpose: To investigate whether the breathing-guidance system: audiovisual (AV) biofeedback improves tumor motion consistency for lung cancer patients. This will minimize respiratory-induced tumor motion variations across cancer imaging and radiotherapy procedues. This is the first study to investigate the impact of respiratory guidance on tumor motion. Methods: Tumor motion consistency was investigated with five lung cancer patients (age: 55 to 64), who underwent a training session to get familiarized with AV biofeedback, followed by two MRI sessions across different dates (pre and mid treatment). During the training session in a CT room, two patient specific breathing patterns were obtained before (Breathing-Pattern-1) and after (Breathing-Pattern-2) training with AV biofeedback. In each MRI session, four MRI scans were performed to obtain 2D coronal and sagittal image datasets in free breathing (FB), and with AV biofeedback utilizing Breathing-Pattern-2. Image pixel values of 2D images after the normalization of 2D images per dataset and Gaussian filter per image were used to extract tumor motion using image pixel values. The tumor motion consistency of the superior-inferior (SI) direction was evaluated in terms of an average tumor motion range and period. Results: Audiovisual biofeedback improved tumor motion consistency by 60% (p value = 0.019) from 1.0±0.6 mm (FB) to 0.4±0.4 mm (AV) in SI motion range, and by 86% (p value < 0.001) from 0.7±0.6 s (FB) to 0.1 0.2 s (AV) in period. Conclusion: This study demonstrated that audiovisual biofeedback improves both breathing pattern and tumor motion consistency for lung cancer patients. These results suggest that AV biofeedback has the potential for facilitating reproducible tumor motion towards achieving more accurate medical imaging and radiation therapy procedures

  5. SU-E-J-29: Audiovisual Biofeedback Improves Tumor Motion Consistency for Lung Cancer Patients

    Energy Technology Data Exchange (ETDEWEB)

    Lee, D; Pollock, S; Makhija, K; Keall, P [The University of Sydney, Camperdown, NSW (Australia); Greer, P [The University of Newcastle, Newcastle, NSW (Australia); Calvary Mater Newcastle Hospital, Newcastle, NSW (Australia); Arm, J; Hunter, P [Calvary Mater Newcastle Hospital, Newcastle, NSW (Australia); Kim, T [The University of Sydney, Camperdown, NSW (Australia); University of Virginia Health System, Charlottesville, VA (United States)

    2014-06-01

    Purpose: To investigate whether the breathing-guidance system: audiovisual (AV) biofeedback improves tumor motion consistency for lung cancer patients. This will minimize respiratory-induced tumor motion variations across cancer imaging and radiotherapy procedues. This is the first study to investigate the impact of respiratory guidance on tumor motion. Methods: Tumor motion consistency was investigated with five lung cancer patients (age: 55 to 64), who underwent a training session to get familiarized with AV biofeedback, followed by two MRI sessions across different dates (pre and mid treatment). During the training session in a CT room, two patient specific breathing patterns were obtained before (Breathing-Pattern-1) and after (Breathing-Pattern-2) training with AV biofeedback. In each MRI session, four MRI scans were performed to obtain 2D coronal and sagittal image datasets in free breathing (FB), and with AV biofeedback utilizing Breathing-Pattern-2. Image pixel values of 2D images after the normalization of 2D images per dataset and Gaussian filter per image were used to extract tumor motion using image pixel values. The tumor motion consistency of the superior-inferior (SI) direction was evaluated in terms of an average tumor motion range and period. Results: Audiovisual biofeedback improved tumor motion consistency by 60% (p value = 0.019) from 1.0±0.6 mm (FB) to 0.4±0.4 mm (AV) in SI motion range, and by 86% (p value < 0.001) from 0.7±0.6 s (FB) to 0.1±0.2 s (AV) in period. Conclusion: This study demonstrated that audiovisual biofeedback improves both breathing pattern and tumor motion consistency for lung cancer patients. These results suggest that AV biofeedback has the potential for facilitating reproducible tumor motion towards achieving more accurate medical imaging and radiation therapy procedures.

  6. THE IMPROVEMENT OF AUDIO-VISUAL BASED DANCE APPRECIATION LEARNING AMONG PRIMARY TEACHER EDUCATION STUDENTS OF MAKASSAR STATE UNIVERSITY

    Directory of Open Access Journals (Sweden)

    Wahira

    2014-06-01

    Full Text Available This research aimed to improve the skill in appreciating dances owned by the students of Primary Teacher Education of Makassar State University, to improve the perception towards audio-visual based art appreciation, to increase the students’ interest in audio-visual based art education subject, and to increase the students’ responses to the subject. This research was classroom action research using the research design created by Kemmis & MC. Taggart, which was conducted to 42 students of Primary Teacher Education of Makassar State University. The data collection was conducted using observation, questionnaire, and interview. The techniques of data analysis applied in this research were descriptive qualitative and quantitative. The results of this research were: (1 the students’ achievement in audio-visual based dance appreciation improved: precycle 33,33%, cycle I 42,85% and cycle II 83,33%, (2 the students’ perception towards the audio-visual based dance appreciation improved: cycle I 59,52%, and cycle II 71,42%. The students’ perception towards the subject obtained through structured interview in cycle I and II was 69,83% in a high category, (3 the interest of the students in the art education subject, especially audio-visual based dance appreciation, increased: cycle I 52,38% and cycle II 64,28%, and the students’ interest in the subject obtained through structured interview was 69,50 % in a high category. (3 the students’ response to audio-visual based dance appreciation increased: cycle I 54,76% and cycle II 69,04% in a good category.

  7. Audio-Visual Biofeedback Does Not Improve the Reliability of Target Delineation Using Maximum Intensity Projection in 4-Dimensional Computed Tomography Radiation Therapy Planning

    International Nuclear Information System (INIS)

    Purpose: To investigate whether coaching patients' breathing would improve the match between ITVMIP (internal target volume generated by contouring in the maximum intensity projection scan) and ITV10 (generated by combining the gross tumor volumes contoured in 10 phases of a 4-dimensional CT [4DCT] scan). Methods and Materials: Eight patients with a thoracic tumor and 5 patients with an abdominal tumor were included in an institutional review board-approved prospective study. Patients underwent 3 4DCT scans with: (1) free breathing (FB); (2) coaching using audio-visual (AV) biofeedback via the Real-Time Position Management system; and (3) coaching via a spirometer system (Active Breathing Coordinator or ABC). One physician contoured all scans to generate the ITV10 and ITVMIP. The match between ITVMIP and ITV10 was quantitatively assessed with volume ratio, centroid distance, root mean squared distance, and overlap/Dice coefficient. We investigated whether coaching (AV or ABC) or uniform expansions (1, 2, 3, or 5 mm) of ITVMIP improved the match. Results: Although both AV and ABC coaching techniques improved frequency reproducibility and ABC improved displacement regularity, neither improved the match between ITVMIP and ITV10 over FB. On average, ITVMIP underestimated ITV10 by 19%, 19%, and 21%, with centroid distance of 1.9, 2.3, and 1.7 mm and Dice coefficient of 0.87, 0.86, and 0.88 for FB, AV, and ABC, respectively. Separate analyses indicated a better match for lung cancers or tumors not adjacent to high-intensity tissues. Uniform expansions of ITVMIP did not correct for the mismatch between ITVMIP and ITV10. Conclusions: In this pilot study, audio-visual biofeedback did not improve the match between ITVMIP and ITV10. In general, ITVMIP should be limited to lung cancers, and modification of ITVMIP in each phase of the 4DCT data set is recommended

  8. Collecting National and International Data on the Production of Audio, Visual, and Microform Materials.

    Science.gov (United States)

    Frase, Robert W.

    This paper reviews UNESCO activities for the collection of national production data of audiovisual materials and microforms and presents possible approaches to the task. UNESCO has for some years collected data on the production of printed materials, but while recognizing the need for collecting similar statistics on nonprint media, it has not yet…

  9. Adult Nutrition Education Materials. January 1982-October 1988. Quick Bibliography Series.

    Science.gov (United States)

    Irving, Holly Berry

    This annotated bibliography of materials available from the National Agricultural Library through interlibrary loan to local libraries focuses on nutrition and dietetics as they relate to physical health and special health problems. The bibliography was derived from online searches of the AGRICOLA database, and materials include audiovisuals,…

  10. Non-Print Instructional Materials for the Air Conditioning and Refrigeration Maintenance Field.

    Science.gov (United States)

    Golitko, Raymond L., Ed.; And Others

    This catalog contains a listing of air conditioning/refrigeration maintenance audiovisual training materials from the Houston Community College System library media collection. The material is organized by subject heading. The media titles are listed in alphabetical order by title under each subject heading in the catalog. The citation for each…

  11. Maternal and Infant Nutrition Education Materials. January 1981-October 1988. Quick Bibliography Series.

    Science.gov (United States)

    Irving, Holly Berry

    The materials cited in this annotated bibliography focus on maternal and infant health and the critical importance of good nutrition. Audiovisuals and books are listed in 152 citations derived from online searches of the AGRICOLA database. Materials are available from the National Agricultural Library or through interlibrary loan to a local…

  12. Source Book of Educational Materials for Diagnostic Medical Ultrasound. Radiological Health Series.

    Science.gov (United States)

    Pijar, Mary Lou, Comp; And Others

    This report is a compilation of educational materials that are available in the field of diagnostic medical ultrasound. Materials, which include publications, audiovisual aids, and teaching aids, are listed under the following categories: abdominal imaging; anatomy and physiology; anatomy and embryology; bioeffects; cardiology and vasculature;…

  13. PHYSIOLOGICAL MONITORING OPERATORS ACS IN AUDIO-VISUAL SIMULATION OF AN EMERGENCY

    Directory of Open Access Journals (Sweden)

    S. S. Aleksanin

    2016-01-01

    Full Text Available In terms of ship simulator automated control systems we have investigated the information content of physiological monitoring cardiac rhythm to assess the reliability and noise immunity of operators of various specializations with audio-visual simulation of an emergency. In parallel, studied the effectiveness of protection against the adverse effects of electromagnetic fields. Monitoring of cardiac rhythm in a virtual crash it is possible to differentiate the degree of voltage regulation systems of body functions of operators on specialization and note the positive effect of the use of means of protection from exposure of electromagnetic fields.

  14. Constructing a survey over time: Audio-visual feedback and theatre sketches in rural Mali

    Directory of Open Access Journals (Sweden)

    Véronique Hertrich

    2011-10-01

    Full Text Available Knowledge dissemination is an emerging issue in population studies, both in terms of ethics and data quality. The challenge is especially important in long term follow-up surveys and it requires methodological imagination when the population is illiterate. The paper presents the dissemination project developed in a demographic surveillance system implemented in rural Mali over the last 20 years. After basic experience of document transfer, the feedback strategy was developed through audiovisual shows and theatre sketches. The advantages and drawbacks of these media are discussed, in terms of scientific communication and the construction of dialogue with the target population.

  15. Simulating Synesthesia In Spatially-Based Real-Time Audio-Visual Performance

    OpenAIRE

    Gibson, Stephen

    2013-01-01

    In this paper I will describe and present examples of my live audio-visual work for 3D spatial environments. These projects use motion-tracking technology to enable users to interact with sound, light and video using their body movements in 3D space. Specific video examples of one past project (Virtual DJ) and one current project (Virtual VJ) will be shown to illustrate how flexible user interaction is enabled through a complex and precise mapping of 3D space to media control. In these projec...

  16. Audio-Visual Speech Intelligibility Benefits with Bilateral Cochlear Implants when Talker Location Varies

    OpenAIRE

    van Hoesel, Richard J. M.

    2015-01-01

    One of the key benefits of using cochlear implants (CIs) in both ears rather than just one is improved localization. It is likely that in complex listening scenes, improved localization allows bilateral CI users to orient toward talkers to improve signal-to-noise ratios and gain access to visual cues, but to date, that conjecture has not been tested. To obtain an objective measure of that benefit, seven bilateral CI users were assessed for both auditory-only and audio-visual speech intelligib...

  17. Cómo medir la violencia audiovisual: principales métodos y estudios realizados

    OpenAIRE

    María Marcos Ramos

    2012-01-01

    El presente artículo, de carácter descriptivo, analiza los principales métodos científicos utilizados en las Ciencias Sociales para analizar la violencia audiovisual. Así, los experimentos de laboratorio, o investigación experimental., estudios de campo, estudios correlacionales, estudios de panel longitudinal, experimentos naturales, estudios de intervención y revisión de meta-análisis han sido los principales métodos empleados por los investigadores más destacados en el campo de las Cien...

  18. A comparison between audio and audiovisual distraction techniques in managing anxious pediatric dental patients

    OpenAIRE

    Prabhakar A; Marwah N; Raju O

    2007-01-01

    Pain is not the sole reason for fear of dentistry. Anxiety or the fear of unknown during dental treatment is a major factor and it has been the major concern for dentists for a long time. Therefore, the main aim of this study was to evaluate and compare the two distraction techniques, viz, audio distraction and audiovisual distraction, in management of anxious pediatric dental patients. Sixty children aged between 4-8 years were divided into three groups. Each child had four dental visits - s...

  19. El text audiovisual: anàlisi des d'una perspectiva mediològica

    OpenAIRE

    Tous, Anna

    2008-01-01

    Consultable des del TDX Títol obtingut de la portada digitalitzada El text audiovisual: anàlisi des d'una perspectiva mediològica és una investigació sobre cinc sèries estatunidenques: El ala oeste de la Casa Blanca (The West Wing, NBC: 1999-2006), Perdidos (Lost, ABC: 2004-), Mujeres desesperadas (Desperate Housewives, ABC: 2004-), House (House, Fox: 2004-) i CSI: Las Vegas (CSI: Crime Scene Investigation, CBS: 2000-). De cadascuna de les sèries del corpus se n'analitza la primera temp...

  20. La influencia del doblaje audiovisual en la percepción de los personajes

    OpenAIRE

    Palencia Villa, Rosa María

    2002-01-01

    La investigación tiene como objetivo principal identificar la influencia del doblaje de la ficción audiovisual en la percepción de los personajes. Esta percepción está referida a la coherencia entre la verosimilitud de los personajes doblados al español y la de esos mismos personajes en la obra original inglesa. También consigue identificar el grado de coherencia entre el carácter de los personajes doblados y esos mismos personajes en la obra original.Entendiendo la audiovisión como un fenóme...

  1. Fundamentos curriculares para una maestría en producción audiovisual

    OpenAIRE

    Maria Alvarado, Nerio Vílchez

    2008-01-01

    El estudio de los fundamentos curriculares para una maestría en producción audiovisual se apoya en Vílchez (2005), Postner (2001), Maldonado (2001), Boluda (2005), Tünnermann (2005), Miranda (2003), Morles (2005), Vaughan (2000), entre otros. La investigación es aplicada, descriptiva, con un diseño no experimental, ransaccional descriptivo, de campo. A la población constituida por diez (10) directivos de las universidades de Maracaibo, que ofrecen Carreras de Comunicación Social en pregrado, ...

  2. Identity, culture and development through participatory audiovisual: The Youth Path Project case from Costa Rica’s UNESCO

    Directory of Open Access Journals (Sweden)

    Ángel V. Rabadán

    2015-06-01

    Full Text Available In this article we present the use of audiovisuals media as a strategic element capable of integrating the concepts of culture and development, promoting intercultural dialogue and participation. The concept of cultural identity is present through coexistence and creativity of young people participating in the “Youth Path” program proposed by UNESCO and developed in Central America, in order to promote development strategies and inclusion. The ethnographic audiovisual, as a fundamental tool to generate knowledge processes and communication links and interaction.

  3. Arch of Neo – Audiovisual Performance and Video Work Exploring the Convergence Between Abstract Visual Music and Dance

    OpenAIRE

    Ruikka, Petri

    2011-01-01

    Arch of Neo (AoN) is an audiovisual performance and video work exploring the convergence between abstract visual music and the movement of dance. The practical part of the thesis consists of the documentation of the live audiovisual performance and two video works. The production part can be found on the accompanying DVD as movie files. The main objective of the thesis is to explore methods of creating visual counterpoints and analogies to the music of AoN. The other main objective is to ...

  4. Tècniques de traducció de la informació no verbal en els textos audiovisuals

    OpenAIRE

    Chaume Varela, Frederic

    1998-01-01

    Aquest article pretén analitzar diferents exemples de la interacció entre la comunicació verbal i la comunicació no verbal en la practica de la traducció audiovisual, i mostra el grau de flexibilitat que té el traductor per tal de resoldre les restriccions comunicatives, pragmàtiques i semiòtiques que origina l'esmentada interacció. L'article se centra finalment en les tècniques de que disposa el traductor de textos audiovisuals per a resoldre aquest tipus de problemes. This paper analyses...

  5. Salvaguardia y conservación del patrimonio audiovisual en las instituciones públicas en Brasil

    OpenAIRE

    Silva, Rubens Ribeiro Gonçalves da; Andrade, Ricardo Sodré; Santos, João Ricardo Chagas dos; Pavezi, Neiva; Hollós, Adriana Cox

    2015-01-01

    Presenta resultados parciales de investigación titulada "Desafíos y Alternativas Digitales para la Salvaguardia y Difusión del Patrimonio Documental Archivístico Audiovisual Público", segunda fase de la investigación (2013-2016). La primera fase de la investigación se llevó a cabo en 2005-2007. Los datos de documentación archivística audiovisual en instituciones públicas de distintas ciudades Brasileñas son compartidos en www.cridi.ufba.ici.br, sitio del Grupo CRIDI de estudio e investigación...

  6. Documentary Realism, Sampling Theory and Peircean Semiotics: electronic audiovisual signs (analog or digital as indexes of reality

    Directory of Open Access Journals (Sweden)

    Hélio Godoy

    2007-07-01

    Full Text Available This paper addresses Documentary Realism, focusing on thephysical phenomena of transduction that take place in analog and digital audiovisual systems, herein analyzed in the light of the Sampling Theory, within the framework of Shannon and Weaver’s Information Theory. Transduction is a process by which one type of energy is transformed into another, or by which information is transcodified. Within the scope of Documentary Realism, it cannotbe claimed that electronic audiovisual signs, because of their technical digital features lead to a rupture with reality. Rather, the digital documentary, based on electronic digital cinematography, is still an index of reality.

  7. A produção audiovisual na virtualização do ensino superior: subsídios para a formação docente/Audiovisual production in the virtualization of higher education: a contribution for teacher education

    Directory of Open Access Journals (Sweden)

    Dulce Márcia da Cruz

    2007-01-01

    Full Text Available O Brasil vive nos últimos dez anos uma crescente expansão da educação a distância (EAD e da virtualização da sala de aula no ensino superior. Se antes de 1995 a produção da EAD era uma tarefa dos profissionais de rádio e TV, com as mídias digitais esse processo também passa pelas mãos de docentes que podem produzir, transmitir e gerenciar cursos e disciplinas na internet, tornando-se autores da produção audiovisual e hipertextual de suas aulas. Visando contribuir para que os docentes tenham noções básicas sobre como produzir para a EAD e para disciplinas semi-presenciais usando meios audiovisuais e hipertextuais, este artigo descreve os elementos básicos que compõem a linguagem cinematográfica e as narrativas digitais que incorporam a interatividade. Finalmente, apresenta alguns fundamentos da produção para as mídias mais comuns na EAD brasileira: material impresso, teleconferência, videoconferência, multimídia/hipermídia e ambientes virtuais de aprendizagem. The past ten years had seen a significant expansion of the distance and hybrid education in Higher Education – HE in Brazil. Before 1995 the production of distance education (DE was a task of radio and TV professionals, with the adoption of digital media this process started to be a task of the teachers too, who can now produce, transmit and manage courses and disciplines in the Internet, becoming authors of the audiovisual and hypertextual production of its lessons. The objective of this article is to offer basic notions to the teachers about how to create DE and hybrid education incorporating audiovisual and hypertextual media, describing the main elements that compose the cinematographic language and the digital narratives that incorporate the interactivity. Finally, it presents some principles of the production for the most common media used for DE in Brazil: printed material, teleconference, videoconference, hypermedia/multimedia and Virtual Learning

  8. Big Data between audiovisual displays, artifacts, and aesthetic experience

    DEFF Research Database (Denmark)

    Bjørnsten, Thomas

    2016-01-01

    of large data sets – or Big Data – into the sphere of art and the aesthetic. Central to the discussion here is the analysis of how different structuring principles of data and the discourses that surround these principles shape our perception of data. This discussion involves considerations on......This article discusses artistic practices and artifacts that are occupied with exploring data through visualization and sonification strategies as well as with translating data into materially solid formats and embodied processes. By means of these examples the overall aim of the article is to...... critically question how and whether such artistic practices can eventually lead to the experience and production of knowledge that could not otherwise be obtained via more traditional ways of data representation. The article, thus, addresses both the problems and possibilities entailed in extending the use...

  9. Alianza Efectiva Familia-Escuela: Un Programa Audiovisual Para Padres Effective Family-School Alliance: An Audiovisual Program for Parents

    OpenAIRE

    Lidia Alcalay; Neva Milicic; Alejandra Torretti

    2005-01-01

    El objetivo del presente artículo es identificar y describir algunas de las variables consideradas como fundamentales para promover una alianza efectiva entre la familia y la escuela. Estas variables se consideraron al desarrollar un material educativo consistente en un video y un manual de actividades, para ser usado con los padres y apoderados en el contexto escolar. El tratamiento de las temáticas estuvo orientado a ampliar la perspectiva de los padres en relación a su rol en la educación ...

  10. Alfasecuencialización: la enseñanza del cine en la era del audiovisual Sequential literacy: the teaching of cinema in the age of audio-visual speech

    Directory of Open Access Journals (Sweden)

    José Antonio Palao Errando

    2007-10-01

    Full Text Available En la llamada «sociedad de la información» los estudios sobre cine se han visto diluidos en el abordaje pragmático y tecnológico del discurso audiovisual, así como la propia fruición del cine se ha visto atrapada en la red del DVD y del hipertexto. El propio cine reacciona ante ello a través de estructuras narrativas complejas que lo alejan del discurso audiovisual estándar. La función de los estudios sobre cine y de su enseñanza universitaria debe ser la reintroducción del sujeto rechazado del saber informativo por medio de la interpretación del texto fílmico. In the so called «information society», film studies have been diluted in the pragmatic and technological approaching of the audiovisual speech, as well as the own fruition of the cinema has been caught in the net of DVD and hypertext. The cinema itself reacts in the face of it through complex narrative structures that take it away from the standard audio-visual speech. The function of film studies at the university education should be the reintroduction of the rejected subject of the informative knowledge by means of the interpretation of film text.

  11. The presentation of expert testimony via live audio-visual communication.

    Science.gov (United States)

    Miller, R D

    1991-01-01

    As part of a national effort to improve efficiency in court procedures, the American Bar Association has recommended, on the basis of a number of pilot studies, increased use of current audio-visual technology, such as telephone and live video communication, to eliminate delays caused by unavailability of participants in both civil and criminal procedures. Although these recommendations were made to facilitate court proceedings, and for the convenience of attorneys and judges, they also have the potential to save significant time for clinical expert witnesses as well. The author reviews the studies of telephone testimony that were done by the American Bar Association and other legal research groups, as well as the experience in one state forensic evaluation and treatment center. He also reviewed the case law on the issue of remote testimony. He then presents data from a national survey of state attorneys general concerning the admissibility of testimony via audio-visual means, including video depositions. Finally, he concludes that the option to testify by telephone provides a significant savings in precious clinical time for forensic clinicians in public facilities, and urges that such clinicians work actively to convince courts and/or legislatures in states that do not permit such testimony (currently the majority), to consider accepting it, to improve the effective use of scarce clinical resources in public facilities. PMID:2039847

  12. ANALYSIS OF MULTIMODAL FUSION TECHNIQUES FOR AUDIO-VISUAL SPEECH RECOGNITION

    Directory of Open Access Journals (Sweden)

    D.V. Ivanko

    2016-05-01

    Full Text Available The paper deals with analytical review, covering the latest achievements in the field of audio-visual (AV fusion (integration of multimodal information. We discuss the main challenges and report on approaches to address them. One of the most important tasks of the AV integration is to understand how the modalities interact and influence each other. The paper addresses this problem in the context of AV speech processing and speech recognition. In the first part of the review we set out the basic principles of AV speech recognition and give the classification of audio and visual features of speech. Special attention is paid to the systematization of the existing techniques and the AV data fusion methods. In the second part we provide a consolidated list of tasks and applications that use the AV fusion based on carried out analysis of research area. We also indicate used methods, techniques, audio and video features. We propose classification of the AV integration, and discuss the advantages and disadvantages of different approaches. We draw conclusions and offer our assessment of the future in the field of AV fusion. In the further research we plan to implement a system of audio-visual Russian continuous speech recognition using advanced methods of multimodal fusion.

  13. Pre-stimulus beta and gamma oscillatory power predicts perceived audiovisual simultaneity.

    Science.gov (United States)

    Yuan, Xiangyong; Li, Haijiang; Liu, Peiduo; Yuan, Hong; Huang, Xiting

    2016-09-01

    Pre-stimulus oscillation activity in the brain continuously fluctuates, but it is correlated with subsequent behavioral and perceptual performance. Here, using fast Fourier transformation of pre-stimulus electroencephalograms, we explored how oscillatory power modulates the subsequent discrimination of perceived simultaneity from non-simultaneity in the audiovisual domain. We found that the over-scalp high beta (20-28Hz), parieto-occipital low beta (14-20Hz), and high gamma oscillations (55-80Hz) were significantly stronger before audition-then-vision sequence when they were judged as simultaneous rather than non-simultaneous. In contrast, a broad range of oscillations, mainly the beta and gamma bands over a great part of the scalp were significantly weaker before vision-then-audition sequences when they were judged as simultaneous versus non-simultaneous. Moreover, for auditory-leading sequence, pre-stimulus beta and gamma oscillatory power successfully predicted subjects' reports of simultaneity on a trial-by-trial basis, with stronger activity resulting in more simultaneous judgments. These results indicate that ongoing fluctuations of beta and gamma oscillations can modulate subsequent perceived audiovisual simultaneity, but with an opposing pattern for auditory- and visual-leading sequences. PMID:27393081

  14. Audio-visual feedback improves the BCI performance in the navigational control of a humanoid robot.

    Science.gov (United States)

    Tidoni, Emmanuele; Gergondet, Pierre; Kheddar, Abderrahmane; Aglioti, Salvatore M

    2014-01-01

    Advancement in brain computer interfaces (BCI) technology allows people to actively interact in the world through surrogates. Controlling real humanoid robots using BCI as intuitively as we control our body represents a challenge for current research in robotics and neuroscience. In order to successfully interact with the environment the brain integrates multiple sensory cues to form a coherent representation of the world. Cognitive neuroscience studies demonstrate that multisensory integration may imply a gain with respect to a single modality and ultimately improve the overall sensorimotor performance. For example, reactivity to simultaneous visual and auditory stimuli may be higher than to the sum of the same stimuli delivered in isolation or in temporal sequence. Yet, knowledge about whether audio-visual integration may improve the control of a surrogate is meager. To explore this issue, we provided human footstep sounds as audio feedback to BCI users while controlling a humanoid robot. Participants were asked to steer their robot surrogate and perform a pick-and-place task through BCI-SSVEPs. We found that audio-visual synchrony between footsteps sound and actual humanoid's walk reduces the time required for steering the robot. Thus, auditory feedback congruent with the humanoid actions may improve motor decisions of the BCI's user and help in the feeling of control over it. Our results shed light on the possibility to increase robot's control through the combination of multisensory feedback to a BCI user. PMID:24987350

  15. A real-time detector system for precise timing of audiovisual stimuli.

    Science.gov (United States)

    Henelius, Andreas; Jagadeesan, Sharman; Huotilainen, Minna

    2012-01-01

    The successful recording of neurophysiologic signals, such as event-related potentials (ERPs) or event-related magnetic fields (ERFs), relies on precise information of stimulus presentation times. We have developed an accurate and flexible audiovisual sensor solution operating in real-time for on-line use in both auditory and visual ERP and ERF paradigms. The sensor functions independently of the used audio or video stimulus presentation tools or signal acquisition system. The sensor solution consists of two independent sensors; one for sound and one for light. The microcontroller-based audio sensor incorporates a novel approach to the detection of natural sounds such as multipart audio stimuli, using an adjustable dead time. This aids in producing exact markers for complex auditory stimuli and reduces the number of false detections. The analog photosensor circuit detects changes in light intensity on the screen and produces a marker for changes exceeding a threshold. The microcontroller software for the audio sensor is free and open source, allowing other researchers to customise the sensor for use in specific auditory ERP/ERF paradigms. The hardware schematics and software for the audiovisual sensor are freely available from the webpage of the authors' lab. PMID:23365952

  16. Orthographic dependency in the neural correlates of reading: evidence from audiovisual integration in English readers.

    Science.gov (United States)

    Holloway, Ian D; van Atteveldt, Nienke; Blomert, Leo; Ansari, Daniel

    2015-06-01

    Reading skills are indispensible in modern technological societies. In transparent alphabetic orthographies, such as Dutch, reading skills build on associations between letters and speech sounds (LS pairs). Previously, we showed that the superior temporal cortex (STC) of Dutch readers is sensitive to the congruency of LS pairs. Here, we used functional magnetic resonance imaging to investigate whether a similar congruency sensitivity exists in STC of readers of the more opaque English orthography, where the relation among LS pairs is less reliable. Eighteen subjects passively perceived congruent and incongruent audiovisual pairs of different levels of transparency in English: letters and speech sounds (LS; irregular), letters and letter names (LN; fairly transparent), and numerals and number names (NN; transparent). In STC, we found congruency effects for NN and LN, but no effects in the predicted direction (congruent > incongruent) for LS pairs. These findings contrast with previous results obtained from Dutch readers. These data indicate that, through education, the STC becomes tuned to the congruency of transparent audiovisual pairs, but suggests a different neural processing of irregular mappings. The orthographic dependency of LS integration underscores cross-linguistic differences in the neural basis of reading and potentially has important implications for dyslexia interventions across languages. PMID:24351976

  17. A comparison between audio and audiovisual distraction techniques in managing anxious pediatric dental patients

    Directory of Open Access Journals (Sweden)

    Prabhakar A

    2007-01-01

    Full Text Available Pain is not the sole reason for fear of dentistry. Anxiety or the fear of unknown during dental treatment is a major factor and it has been the major concern for dentists for a long time. Therefore, the main aim of this study was to evaluate and compare the two distraction techniques, viz, audio distraction and audiovisual distraction, in management of anxious pediatric dental patients. Sixty children aged between 4-8 years were divided into three groups. Each child had four dental visits - screening visit, prophylaxis visit, cavity preparation and restoration visit, and extraction visit. Child′s anxiety level in each visit was assessed using a combination of four measures: Venham′s picture test, Venham′s rating of clinical anxiety, pulse rate, and oxygen saturation. The values obtained were tabulated and subjected to statistical analysis. It was concluded that audiovisual distraction technique was more effective in managing anxious pediatric dental patient as compared to audio distraction technique.

  18. Psychophysics of the McGurk and Other Audiovisual Speech Integration Effects

    Science.gov (United States)

    Jiang, Jintao; Bernstein, Lynne E.

    2011-01-01

    When the auditory and visual components of spoken audiovisual nonsense syllables are mismatched, perceivers produce four different types of perceptual responses, auditory correct, visual correct, fusion (the so-called McGurk effect), and combination (i.e., two consonants are reported). Here, quantitative measures were developed to account for the distribution of types of perceptual responses to 384 different stimuli from four talkers. The measures included mutual information, the presented acoustic signal versus the acoustic signal recorded with the presented video, and the correlation between the presented acoustic and video stimuli. In Experiment 1, open-set perceptual responses were obtained for acoustic /bA/ or /lA/ dubbed to video /bA, dA, gA, vA, zA, lA, wA, ΔA/. The talker, the video syllable, and the acoustic syllable significantly influenced the type of response. In Experiment 2, the best predictors of response category proportions were a subset of the physical stimulus measures, with the variance accounted for in the perceptual response category proportions between 17% and 52%. That audiovisual stimulus relationships can account for response distributions supports the possibility that internal representations are based on modality-specific stimulus relationships. PMID:21574741

  19. The third language: A recurrent textual restriction that translators come across in audiovisual translation.

    Directory of Open Access Journals (Sweden)

    Montse Corrius Gimbert

    2005-01-01

    Full Text Available If the process of translating is not at all simple, the process of translating an audiovisual text is still more complex. Apart rom technical problems such as lip synchronisation, there are other factors to be considered such as the use of the language and textual structures deemed appropriate to the channel of communication. Bearing in mind that most of the films we are continually seeing on our screens were and are produced in the United States, there is an increasing need to translate them into the different languages of the world. But sometimes the source audiovisual text contains more than one language, and, thus, a new problem arises: the ranslators face additional difficulties in translating this “third language” (language or dialect into the corresponding target culture. There are many films containing two languages in the original version but in this paper we will focus mainly on three films: Butch Cassidy and the Sundance Kid (1969, Raid on Rommel (1999 and Blade Runner (1982. This paper aims at briefly illustrating different solutions which may be applied when we come across a “third language”.

  20. Audio-Visual Speech Recognition Using MPEG-4 Compliant Visual Features

    Directory of Open Access Journals (Sweden)

    Aleksic Petar S

    2002-01-01

    Full Text Available We describe an audio-visual automatic continuous speech recognition system, which significantly improves speech recognition performance over a wide range of acoustic noise levels, as well as under clean audio conditions. The system utilizes facial animation parameters (FAPs supported by the MPEG-4 standard for the visual representation of speech. We also describe a robust and automatic algorithm we have developed to extract FAPs from visual data, which does not require hand labeling or extensive training procedures. The principal component analysis (PCA was performed on the FAPs in order to decrease the dimensionality of the visual feature vectors, and the derived projection weights were used as visual features in the audio-visual automatic speech recognition (ASR experiments. Both single-stream and multistream hidden Markov models (HMMs were used to model the ASR system, integrate audio and visual information, and perform a relatively large vocabulary (approximately 1000 words speech recognition experiments. The experiments performed use clean audio data and audio data corrupted by stationary white Gaussian noise at various SNRs. The proposed system reduces the word error rate (WER by 20% to 23% relatively to audio-only speech recognition WERs, at various SNRs (0–30 dB with additive white Gaussian noise, and by 19% relatively to audio-only speech recognition WER under clean audio conditions.

  1. Alianza Efectiva Familia-Escuela: Un Programa Audiovisual Para Padres Effective Family-School Alliance: An Audiovisual Program for Parents

    Directory of Open Access Journals (Sweden)

    Lidia Alcalay

    2005-11-01

    Full Text Available El objetivo del presente artículo es identificar y describir algunas de las variables consideradas como fundamentales para promover una alianza efectiva entre la familia y la escuela. Estas variables se consideraron al desarrollar un material educativo consistente en un video y un manual de actividades, para ser usado con los padres y apoderados en el contexto escolar. El tratamiento de las temáticas estuvo orientado a ampliar la perspectiva de los padres en relación a su rol en la educación de sus hijos y a cuestionar y enriquecer su integración al sistema escolar. En este marco se plantea que el material puede aumentar las competencias parentales de manera de generar una alianza más efectiva con el sistema escolar en pro de un mejor desarrollo del niño en el ámbito social, emocional y cognitivo.The purpose of this article is to identify and describe some of the variables that are considered as essential in order to promote an effective alliance between family and school. These variables were considered in the development of an educational program that includes a video and a set of activities designed to be used with parents in the school context. The different contents of the program were elaborated in such a way so as to expand parents' perspective with respect to their rol in their children's education, as well as to question and enrich their integration to the school system. Within this context, the educational program is oriented to increase parental competences so as to establish a more effective alliance with the school system which in turn, will have a positive effect in social, emotional and cognitive development of the child.

  2. When Library and Archival Science Methods Converge and Diverge: KAUST’s Multi-Disciplinary Approach to the Management of its Audiovisual Heritage

    KAUST Repository

    Kenosi, Lekoko

    2015-07-16

    Libraries and Archives have long recognized the important role played by audiovisual records in the development of an informed global citizen and the King Abdullah University of Science and Technology (KAUST) is no exception. Lying on the banks of the Red Sea, KAUST has a state of the art library housing professional library and archives teams committed to the processing of digital audiovisual records created within and outside the University. This commitment, however, sometimes obscures the fundamental divergences unique to the two disciplines on the acquisition, cataloguing, access and long-term preservation of audiovisual records. This dichotomy is not isolated to KAUST but replicates itself in many settings that have employed Librarians and Archivists to manage their audiovisual collections. Using the KAUST audiovisual collections as a case study the authors of this paper will take the reader through the journey of managing KAUST’s digital audiovisual collection. Several theoretical and methodological areas of convergence and divergence will be highlighted as well as suggestions on the way forward for the IFLA and ICA working committees on the management of audiovisual records.

  3. Lenguaje audiovisual y lenguaje escolar: dos cosmovisiones en la estructuración lingüística del niño Audiovisual language and school language: two cosmo-visions in the structuring of children linguistics

    Directory of Open Access Journals (Sweden)

    Lirian Astrid Ciro

    2007-06-01

    Full Text Available En el presente texto se pretende analizar la compleja red relacional existente entre el lenguaje audiovisual (partiendo de la televisión como uno de sus soportes y el lenguaje escolar, para vislumbrar sus efectos en el lenguaje infantil. La idea es mostrar el lenguaje audiovisual como un mecanismo potencialmente educativo, por cuanto es una forma de resignificar el mundo y de socialización lingüística; tal característica hace necesario entablar una relación estratégica entre él y el lenguaje escolar. De este modo, el lenguaje infantil se instaura como un punto intermedio en donde confluyen esos distintos lenguajes, y permite al niño tener cosmovisiones abiertas y flexibles de diversas realidades. Todo esto llevará a la configuración de seres creativos, novedosos y atentos a escuchar opciones... a la estructuración de una nueva sociedad, en donde la multiplicidad de códigos (entendidos como sistemas de simbolización vayan haciendo más fácil la expresión de lo que se es y se quiere ser.This paper analyzes the complex relationship between audiovisual language (TV being one of its main supports and school language in order to observe their effects on child language. In this way, audiovisual language is a potentially educational mechanism because it is both a new way of resignifying the world and a mechanism of linguistic socialization. Hence, it is necessary to establish a strategic relationship between audiovisual language and school language. In this way, child language is an intermediate point between these two languages and it allows the child to have open and flexible views of different realities and to be willing to weigh options. In short, it is the structuring of a new society where multiplicity of codes will contribute to facilitating free expression.

  4. The effect of combined sensory and semantic components on audio-visual speech perception in older adults

    Directory of Open Access Journals (Sweden)

    Corrina Maguinness

    2011-12-01

    Full Text Available Previous studies have found that perception in older people benefits from multisensory over uni-sensory information. As normal speech recognition is affected by both the auditory input and the visual lip-movements of the speaker, we investigated the efficiency of audio and visual integration in an older population by manipulating the relative reliability of the auditory and visual information in speech. We also investigated the role of the semantic context of the sentence to assess whether audio-visual integration is affected by top-down semantic processing. We presented participants with audio-visual sentences in which the visual component was either blurred or not blurred. We found that there was a greater cost in recall performance for semantically meaningless speech in the audio-visual blur compared to audio-visual no blur condition and this effect was specific to the older group. Our findings have implications for understanding how aging affects efficient multisensory integration for the perception of speech and suggests that multisensory inputs may benefit speech perception in older adults when the semantic content of the speech is unpredictable.

  5. Theological Media Literacy Education and Hermeneutic Analysis of Soviet Audiovisual Anti-Religious Media Texts in Students' Classroom

    Science.gov (United States)

    Fedorov, Alexander

    2015-01-01

    This article realized the Russian way of theological media education literacy and hermeneutic analysis of specific examples of Soviet anti-religious audiovisual media texts: a study of the process of interpretation of these media texts, cultural and historical factors influencing the views of the media agency/authors. The hermeneutic analysis…

  6. Virtual Attendance: Analysis of an Audiovisual over IP System for Distance Learning in the Spanish Open University (UNED)

    Science.gov (United States)

    Vazquez-Cano, Esteban; Fombona, Javier; Fernandez, Alberto

    2013-01-01

    This article analyzes a system of virtual attendance, called "AVIP" (AudioVisual over Internet Protocol), at the Spanish Open University (UNED) in Spain. UNED, the largest open university in Europe, is the pioneer in distance education in Spain. It currently has more than 300,000 students, 1,300 teachers, and 6,000 tutors all over the…

  7. Audiovisual distraction as a useful adjunct to epidural anesthesia and sedation for prolonged lower limb microvascular orthoplastic surgery.

    Science.gov (United States)

    Athanassoglou, Vassilis; Wallis, Anna; Galitzine, Svetlana

    2015-11-01

    Lower limb orthopedic operations are frequently performed under regional anesthesia, which allows avoidance of potential side effects and complications of general anesthesia and sedation. Often though, patients feel anxious about being awake during operations. To decrease intraoperative anxiety, we use multimedia equipment consisting of a tablet device, noise-canceling headphones, and a makeshift frame, where patients can listen to music, watch movies, or occupy themselves in numerous ways. These techniques have been extensively studies in minimally invasive, short, or minor procedures but not in prolonged orthoplastic operations. We report 2 cases where audiovisual distraction was successfully applied to 9.5-hour procedures, proved to be a very useful adjunct to epidural anesthesia + sedation, and made an important contribution to positive patients' outcomes and overall patients' experience with regional anesthesia for complex limb reconstructive surgery. In the era when not only patients' safety and clinical outcomes but also patients' positive experiences are of paramount importance, audiovisual distraction may provide a simple tool to help improve experience of appropriately informed patients undergoing suitable procedures under regional anesthesia. The anesthetic technique received a very positive appraisal by both patients and encouraged us to study further the impact of modern audiovisual technology on anxiolysis for major surgery under regional anesthesia. The duration of surgery per se is not a contraindication to the use of audiovisual distraction. The absolute proviso of successful application of this technique to major surgery is effective regional anesthesia and good teamwork between the clinicians and the patients. PMID:26272621

  8. The impact of audio-visual biofeedback on 4D PET images: Results of a phantom study

    OpenAIRE

    Yang, Jaewon; Yamamoto, Tokihiro; Cho, ByungChul; Seo, Youngho; Keall, Paul J.

    2012-01-01

    Purpose: Irregular breathing causes motion blurring artifacts in 4D PET images. Audiovisual (AV) biofeedback has been demonstrated to improve breathing regularity. To investigate the hypothesis that, compared with free breathing, motion blurring artifacts are reduced with AV biofeedback, the authors performed the first experimental phantom-based quantification of the impact of AV biofeedback on 4D PET image quality.

  9. Impairment-Factor-Based Audiovisual Quality Model for IPTV: Influence of Video Resolution, Degradation Type, and Content Type

    Directory of Open Access Journals (Sweden)

    Garcia MN

    2011-01-01

    Full Text Available This paper presents an audiovisual quality model for IPTV services. The model estimates the audiovisual quality of standard and high definition video as perceived by the user. The model is developed for applications such as network planning and packet-layer quality monitoring. It mainly covers audio and video compression artifacts and impairments due to packet loss. The quality tests conducted for model development demonstrate a mutual influence of the perceived audio and video quality, and the predominance of the video quality for the overall audiovisual quality. The balance between audio quality and video quality, however, depends on the content, the video format, and the audio degradation type. The proposed model is based on impairment factors which quantify the quality-impact of the different degradations. The impairment factors are computed from parameters extracted from the bitstream or packet headers. For high definition video, the model predictions show a correlation with unknown subjective ratings of 95%. For comparison, we have developed a more classical audiovisual quality model which is based on the audio and video qualities and their interaction. Both quality- and impairment-factor-based models are further refined by taking the content-type into account. At last, the different model variants are compared with modeling approaches described in the literature.

  10. Changes in the Management of Information in Audio-Visual Archives following Digitization: Current and Future Outlook

    Science.gov (United States)

    Caldera-Serrano, Jorge

    2008-01-01

    This article attempts to offer an overview of the current changes that are being experienced in the management of audio-visual documentation and those that can be forecast in the future as a result of the migration from analogue to digital information. For this purpose the documentary chain will be used as a basis to analyse individually the tasks…

  11. The orphan works problem: the copyright conundrum of digitizing large-scale audiovisual archives, and how to solve it

    NARCIS (Netherlands)

    S. van Gompel; P.B. Hugenholtz

    2010-01-01

    This article examines the problem of "orphan works" against the background of various projects for mass-digitization of audiovisual content. Orphan works are works for which the copyright owners cannot be identified or located. The fact that a particular work is "orphaned" makes it impossible to cle

  12. [Aesthetics of the grotesque and audiovisual production for health education: segregation or empathy? The case of leishmaniasis in Brazil].

    Science.gov (United States)

    Pimenta, Denise Nacif; Leandro, Anita; Schall, Virgínia Torres

    2007-05-01

    In order to understand audiovisual production on health and disease and the pedagogical effects of health education mediated by educational videos, this article analyzes the audiovisual production on leishmaniasis in Brazil. Fourteen educational videos showed the hegemony of TV aesthetics, particularly a journalistic paradigm with constant use of voice-over, inducing the fixation of meanings. Rather than stimulating critical reflection on the social circumstances of leishmaniasis, the videos' discourse and images promote a banal, non-critical, stigmatized representation of the disease. Individuals with the disease are subjected to visual exposure rather than being involved critically and sensitively as protagonists in prevention and treatment. The article thus presents approaches based on studies of visual and health anthropology, arguing in favor of an innovative approach to the production and utilization of educational videos in health education, mediated through audiovisuals. Health education should respect and engage in dialogue with various cultures, subjectivity, and citizenship, developing an audiovisual aesthetics (in terms of narrative and image) that fosters an educational praxis in the field of collective health. PMID:17486238

  13. UN REPTE DE LA (SOCIOLINGÜÍSTICA APLICADA: EL MODEL DE LLENGUA COL·LOQUIAL PER A LA COMUNICACIÓ AUDIOVISUAL

    Directory of Open Access Journals (Sweden)

    Josep Angel Mas i Castells

    2007-05-01

    Full Text Available La diversitat de situacions en què s’utilitza la llengua en la comunicació audiovisual fa insuficient la divisió entre re g i s t re formal i informal a què solen limitar-se els materials d’orientació lingüística. Aquesta insuficiència es fa palesa especialment en les situacions informals, les quals abracen un llarg continuum que va, per exemple, des de l’entrevista a un famós al disseny de la parla d’un personatge illetrat en el guió d’una sèrie de ficció. Les aportacions de la sociolingüística, incloent-hi tant el variacionisme com l’anàlisi de les actituds lingüístiques, són fonanentals a l’hora de dissenyar propostes de model lingüístic. Cal subratllar que la importància d’aquests materials és cabdal en contextos de conflicte lingüístic com el de la comunitat lingüística de llengua catalana. Més encara en l’espai comunicatiu valencià, al qual es re f e reix especialment aquest article, on les connotacions ideològiques que assoleixen determinades variants poden entrebancar qualsevol proposta.The variety of situations where language is used in audiovisual communications renders the separation between formal and informal register, which normally employ the language orientation materials, inadequate. This inadequacy is highly evident particularly in informal situations, which embrace a long continuum ranging, for example, from the interview of a celebrity to the speech design for an illiterate character in a fiction series script. The sociolinguistic contributions, which include variationism as the analysis of linguistic attitudes, are crucial when formulating proposals for a language model. It should be stressed that the importance of these materials is crucial in contexts where linguistic conflict is pre s e n t , as in the Catalan language community. This applies to a greater extent to the Valencian communicative space, which is the central focus of the present.

  14. Audiovisual en línea en la universidad española: bibliotecas y servicios especializados (una panorámica

    Directory of Open Access Journals (Sweden)

    Alfonso López Yepes

    2014-08-01

    Full Text Available Situación que presenta la información audiovisual en línea en el ámbito de las bibliotecas y servicios audiovisuales universitarios españoles, con ejemplos de aplicaciones y desarrollos concretos. Se destaca la presencia del audiovisual fundamentalmente en blogs, canales IPTV, portales bibliotecarios propios y en actuaciones concretas como “La Universidad Responde”, a cargo de los servicios audiovisuales de las universidades españolas, que supone sin duda un marco de referencia y de difusión informativa muy destacado también para el ámbito bibliotecario; así como en redes sociales, mencionándose una propuesta de modelo de red social de biblioteca universitaria. Se remite a la participación de bibliotecas y servicios en proyectos colaborativos de investigación y desarrollo social, presencia ya efectiva en el marco del proyecto “Red iberoamericana de patrimonio sonoro y audiovisual”, que apuesta  por la construcción social del conocimiento audiovisual basado en la interacción entre distintos grupos multidisciplinarios de profesionales con diferentes comunidades de usuarios e instituciones.A situation presenting audiovisual information online in the field of libraries and audiovisual university spanish services, with examples of applications and specific developments. The presence of the audiovisual in blogs and IPTV channels librarians and specific actions as The University Respond, in charge of the audiovisual services of the spanish universities, a very important reference and information dissemination for the field librarian and in social networks, mentioning a model of social network of University Library. Participation of libraries and services in collaborative research and social development projects in the Ibero-American network of sound and audiovisual heritage project, for the social construction of the audiovisual knowledge based on the interaction between various multidisciplinary groups of professionals with

  15. Prácticas en las Redes Sociales Online. Ficción Audiovisual para la Construcción de Identidad

    OpenAIRE

    Castillo Hinojosa, Ana María

    2014-01-01

    Esta Tesis Doctoral busca responder a las siguientes interrogantes: ¿Qué tipos de prácticas con ficción audiovisual pueden observarse en las plataformas de redes sociales? ¿Cómo se usa la ficción audiovisual en las Redes Sociales Online? ¿Cómo se relacionan dichas prácticas con la construcción de identidad de los usuarios? ¿Consolidan las redes sociales online la migración entre pantallas para el consumo/uso de ficción audiovisual? ¿Cuáles son las diferencias y semejanzas de comportamiento de...

  16. Brain networks engaged in audiovisual integration during speech perception revealed by persistent homology-based network filtration.

    Science.gov (United States)

    Kim, Heejung; Hahm, Jarang; Lee, Hyekyoung; Kang, Eunjoo; Kang, Hyejin; Lee, Dong Soo

    2015-05-01

    The human brain naturally integrates audiovisual information to improve speech perception. However, in noisy environments, understanding speech is difficult and may require much effort. Although the brain network is supposed to be engaged in speech perception, it is unclear how speech-related brain regions are connected during natural bimodal audiovisual or unimodal speech perception with counterpart irrelevant noise. To investigate the topological changes of speech-related brain networks at all possible thresholds, we used a persistent homological framework through hierarchical clustering, such as single linkage distance, to analyze the connected component of the functional network during speech perception using functional magnetic resonance imaging. For speech perception, bimodal (audio-visual speech cue) or unimodal speech cues with counterpart irrelevant noise (auditory white-noise or visual gum-chewing) were delivered to 15 subjects. In terms of positive relationship, similar connected components were observed in bimodal and unimodal speech conditions during filtration. However, during speech perception by congruent audiovisual stimuli, the tighter couplings of left anterior temporal gyrus-anterior insula component and right premotor-visual components were observed than auditory or visual speech cue conditions, respectively. Interestingly, visual speech is perceived under white noise by tight negative coupling in the left inferior frontal region-right anterior cingulate, left anterior insula, and bilateral visual regions, including right middle temporal gyrus, right fusiform components. In conclusion, the speech brain network is tightly positively or negatively connected, and can reflect efficient or effortful processes during natural audiovisual integration or lip-reading, respectively, in speech perception. PMID:25495216

  17. Ús de mitjans audiovisuals per a la investigació de la realitat dels alumnes resistents Using of audiovisual media to research resistant students Uso de medios audiovisuales para la investigación de la realidad de los

    Directory of Open Access Journals (Sweden)

    Josep Jorba Vidal

    2009-01-01

    Full Text Available En aquest article s’exposa una experiència investigadora que proposa un apropament entre la sociologia de l’educació i el món audiovisual. Partint de les bases teòriques i metodològiques de les teories de la resistència escolar (aquelles que centren el seu interès en l’alumnat que no reconeix ni accepta les normes i valors escolars es proposa recollir, a través de tècniques etnogràfiques, el discurs, les experiències i els gustos dels alumnes amb material audiovisual (fotografies, música, vídeo, etc.; també pretén analitzar, editar i estructurar aquesta informació en forma de text i de vídeo, i finalment presentar els resultats dins l’estructura d’un fotolog (una de les eines de comunicació informàtica més esteses entre el jovent, tot i que molt desconegudes entre el professorat de secundària i els investigadors socials. __________________________________ Dans cet article, nous présentons une expérience de recherche qui propose un rapprochement entre la sociologie de l’éducation et le monde audiovisuel. En partant des bases théoriques et méthodologiques des théories de la résistance scolaire (celles qui centrent leur intérêt sur les élèves qui ne reconnaissent ni n’acceptent les normes ni les valeurs scolaires, nous proposons : de recueillir, au moyen des techniques ethnographiques, le discours, les expériences ainsi que les goûts des élèves grâce au matériel audiovisuel (photographie, musique, vidéo, etc. ; d’analyser, d’éditer et de structurer cette information sous forme de texte et de vidéo ; et, finalement, de présenter les résultats dans la structure d’un fotolog (un des outils de communication informatique parmi les plus répandus chez les jeunes, bien que très méconnu des professeurs du secondaire et des chercheurs en sciences sociales.This paper presents a research project that aims to bring the sociology of education and the audiovisual world closer together. Applying the

  18. Audiovisual Interaction

    DEFF Research Database (Denmark)

    Karandreas, Theodoros-Alexandros

    importance of each modality with respect to the overall quality evaluation. The results show that this was not due to specific interactions between stimuli but rather because the auditory modality dominated over the visual modality. Furthermore, for all experiments where less than optimal stimuli...

  19. One Country, Two Polarised Audiences: Estonia and the Deficiency of the Audiovisual Media Services Directive

    Directory of Open Access Journals (Sweden)

    Andres Jõesaar

    2015-12-01

    Full Text Available This article argues that until recent times, the Estonian media policy has mainly been interpreted as an economic issue and it did not account for the strategic need to build a comprehensive media field to serve all groups in society. This has happened despite the fact the Estonian media policy is in line with the European Union (EU media policy, which should ensure freedom of information, diversity of opinion and media pluralism. Findings of the Estonian case study show that despite these noble aims, Estonia has two radically different information fields: one for Estonian speaking audiences and one for Russian speakers. Events in Ukraine have added to the democratic media policy paradigm a question of national security. Now it is a challenge for the policy makers to unite polarised media fields and how to minimise the impact of Russian propaganda. On the EU level, one supportive measure could be a revision of the Audiovisual Media Service Directive.

  20. Active Drumming Experience Increases Infants' Sensitivity to Audiovisual Synchrony during Observed Drumming Actions.

    Directory of Open Access Journals (Sweden)

    Sarah A Gerson

    Full Text Available In the current study, we examined the role of active experience on sensitivity to multisensory synchrony in six-month-old infants in a musical context. In the first of two experiments, we trained infants to produce a novel multimodal effect (i.e., a drum beat and assessed the effects of this training, relative to no training, on their later perception of the synchrony between audio and visual presentation of the drumming action. In a second experiment, we then contrasted this active experience with the observation of drumming in order to test whether observation of the audiovisual effect was as effective for sensitivity to multimodal synchrony as active experience. Our results indicated that active experience provided a unique benefit above and beyond observational experience, providing insights on the embodied roots of (early music perception and cognition.

  1. Audio-Visual Speech Recognition Using Lip Information Extracted from Side-Face Images

    Directory of Open Access Journals (Sweden)

    Koji Iwano

    2007-03-01

    Full Text Available This paper proposes an audio-visual speech recognition method using lip information extracted from side-face images as an attempt to increase noise robustness in mobile environments. Our proposed method assumes that lip images can be captured using a small camera installed in a handset. Two different kinds of lip features, lip-contour geometric features and lip-motion velocity features, are used individually or jointly, in combination with audio features. Phoneme HMMs modeling the audio and visual features are built based on the multistream HMM technique. Experiments conducted using Japanese connected digit speech contaminated with white noise in various SNR conditions show effectiveness of the proposed method. Recognition accuracy is improved by using the visual information in all SNR conditions. These visual features were confirmed to be effective even when the audio HMM was adapted to noise by the MLLR method.

  2. Integrating Audio-Visual Features and Text Information for Story Segmentation of News Video

    Institute of Scientific and Technical Information of China (English)

    LiuHua-yong; ZhouDong-ru

    2003-01-01

    Video data are composed of multimodal information streams including visual, auditory and textual streams, an approach of story segmentation for news video using multimodal analysis is described in this paper. The proposed approach detects the topic-caption frames, and integrates them with silence clips detection results, as well as shot segmentation results to locate the news story boundaries. The integration of audio-visual features and text information overcomes the weakness of the approach using only image analysis techniques. On test data with 135 400 frames, when the boundaries between news stories are detected, the accuracy rate 85.8% and the recall rate 97.5% are obtained. The experimental results show the approach is valid and robust.

  3. Integrating Audio-Visual Features and Text Information for Story Segmentation of News Video

    Institute of Scientific and Technical Information of China (English)

    Liu Hua-yong; Zhou Dong-ru

    2003-01-01

    Video data are composed of multimodal information streams including visual, auditory and textual streams, so an approach of story segmentation for news video using multimodal analysis is described in this paper. The proposed approach detects the topic-caption frames, and integrates them with silence clips detection results, as well as shot segmentation results to locate the news story boundaries. The integration of audio-visual features and text information overcomes the weakness of the approach using only image analysis techniques. On test data with 135 400 frames, when the boundaries between news stories are detected, the accuracy rate 85.8% and the recall rate 97.5% are obtained. The experimental results show the approach is valid and robust.

  4. Gone in a Flash: Manipulation of Audiovisual Temporal Integration Using Transcranial Magnetic Stimulation

    Directory of Open Access Journals (Sweden)

    Roy eHamilton

    2013-09-01

    Full Text Available While converging evidence implicates the right inferior parietal lobule in audiovisual integration, its role has not been fully elucidated by direct manipulation of cortical activity. Replicating and extending an experiment initially reported by Kamke, Vieth, Cottrell, and Mattingley (2012, we employed the sound-induced flash illusion, in which a single visual flash, when accompanied by two auditory tones, is misperceived as multiple flashes (Wilson, 1987; Shams, et al., 2000. Slow repetitive (1Hz TMS administered to the right angular gyrus, but not the right supramarginal gyrus, induced a transient decrease in the Peak Perceived Flashes (PPF, reflecting reduced susceptibility to the illusion. This finding independently confirms that perturbation of networks involved in multisensory integration can result in a more veridical representation of asynchronous auditory and visual events and that cross-modal integration is an active process in which the objective is the identification of a meaningful constellation of inputs, at times at the expense of accuracy.

  5. La imagen que piensa. Hacia una definición del ensayo audiovisual

    OpenAIRE

    García-Martínez, A.N. (Alberto Nahum)

    2006-01-01

    El presente artículo pretende analizar las claves esenciales –históricas, retóricas y de género– que caracterizan a un tipo de texto audiovisual que cuenta con una escasa tradición cinematográfica. El ensayo fílmico propone un discurso personal y asistemático que –a través de elementos como un estilo marcado, un montaje visible que privilegia la palabra o la inserción fílmica del autor– va construyendo su reflexión en las imágenes, representando así el camino del pensamiento trazado....

  6. Herramienta para la traducción asistida en la industria audiovisual

    OpenAIRE

    Mejías Moreno, Raquel

    2010-01-01

    Dado que la adaptación de un guión audiovisual para el doblaje a otros idiomas requiere de un proceso complejo, que incluye el ajuste de los diálogos; que además puede realizarse la traducción en un documento compatible con las herramientas de traducción asistida existentes, y que el uso de los subtítulos está más extendido que el doblaje en la mayoría de países, se ha decidido que el objetivo principal del proyecto sea diseñar y desarrollar una aplicación de traducción asistida de subtítulos...

  7. Traffic and connectivities on the web: an audio-visual ecology

    Directory of Open Access Journals (Sweden)

    Sonia Montaño

    2012-12-01

    Full Text Available The paper attempts an web audiovisual ecology as a way to understand the stage oftechnique in which we find ourselves and the device in which we operate. This ecologyis related with the perception of the set of relations established between the elements ofthe video and with his surroundings. Through dissection – a procedure of the framesmethodology authenticates the overlapping frames by the assembly, framework, etc.from where the meanings of images come- we found, for example, in landscape ofJustin TV platform, the meanings attributed to the time live streams are related toflows inserted by transit and connectivity that tensioning and recycle the meaningsenunciated by TV off-line to real time.

  8. Audiovisual physics reports: students' video production as a strategy for the didactic laboratory

    Science.gov (United States)

    Vinicius Pereira, Marcus; de Souza Barros, Susana; de Rezende Filho, Luiz Augusto C.; Fauth, Leduc Hermeto de A.

    2012-01-01

    Constant technological advancement has facilitated access to digital cameras and cell phones. Involving students in a video production project can work as a motivating aspect to make them active and reflective in their learning, intellectually engaged in a recursive process. This project was implemented in high school level physics laboratory classes resulting in 22 videos which are considered as audiovisual reports and analysed under two components: theoretical and experimental. This kind of project allows the students to spontaneously use features such as music, pictures, dramatization, animations, etc, even when the didactic laboratory may not be the place where aesthetic and cultural dimensions are generally developed. This could be due to the fact that digital media are more legitimately used as cultural tools than as teaching strategies.

  9. Learning one-to-many mapping functions for audio-visual integrated perception

    Science.gov (United States)

    Lim, Jung-Hui; Oh, Do-Kwan; Lee, Soo-Young

    2010-04-01

    In noisy environment the human speech perception utilizes visual lip-reading as well as audio phonetic classification. This audio-visual integration may be done by combining the two sensory features at the early stage. Also, the top-down attention may integrate the two modalities. For the sensory feature fusion we introduce mapping functions between the audio and visual manifolds. Especially, we present an algorithm to provide one-to-many mapping function for the videoto- audio mapping. The top-down attention is also presented to integrate both the sensory features and classification results of both modalities, which is able to explain McGurk effect. Each classifier is separately implemented by the Hidden-Markov Model (HMM), but the two classifiers are combined at the top level and interact by the top-down attention.

  10. Reportagem audiovisual: planificação de um canal ornitológico WEB

    OpenAIRE

    Valentim, Hugo da Silva

    2011-01-01

    Os audiovisuais surgem nos finais do séc. XIX e uma das suas inovações foi ao nível jornalístico, já que é nesta altura que surgem as reportagens em vídeo. A reportagem em vídeo é, assim, uma mais-valia, pois relata factos e reporta-os a quem não os pode presenciar. A construção de uma reportagem audiovisual, para difusão na internet, tem, forçosamente que ter em conta preocupações a nível do conteúdo, estética e forma. A internet é um poderoso meio de comunicação, onde se p...

  11. Fundamentos curriculares para una maestría en producción audiovisual

    Directory of Open Access Journals (Sweden)

    Maria Alvarado, Nerio Vílchez

    2008-01-01

    Full Text Available El estudio de los fundamentos curriculares para una maestría en producción audiovisual se apoya en Vílchez (2005, Postner (2001, Maldonado (2001, Boluda (2005, Tünnermann (2005, Miranda (2003, Morles (2005, Vaughan (2000, entre otros. La investigación es aplicada, descriptiva, con un diseño no experimental, ransaccional descriptivo, de campo. A la población constituida por diez (10 directivos de las universidades de Maracaibo, que ofrecen Carreras de Comunicación Social en pregrado, así como también que ofrezcan estudios de postgrado y cinco (5 expertos en currículo.

  12. Traducción audiovisual de contenido sanitario: estudio de caso

    Directory of Open Access Journals (Sweden)

    Ana Belén Martínez López

    2010-06-01

    Full Text Available Análisis de la traducción de la terminología médica del inglés al español de la serie de televisión «House» (primera temporada. En este trabajo solo hemos estudiado la terminología médica que aparece en las conversaciones entre especialistas. ------------------------------------------- Audiovisual translation of a serial of medical content in a TV series: a case analysis. Analysis of the translation of the medical terminology from English into Spanish of the TV series House (1st season. This work only takes into account the medical terminology used in conversations between doctors, that is, specialized terms.

  13. "Singing in the Tube"--audiovisual assay of plant oil repellent activity against mosquitoes (Culex pipiens).

    Science.gov (United States)

    Adams, Temitope F; Wongchai, Chatchawal; Chaidee, Anchalee; Pfeiffer, Wolfgang

    2016-01-01

    Plant essential oils have been suggested as a promising alternative to the established mosquito repellent DEET (N,N-diethyl-meta-toluamide). Searching for an assay with generally available equipment, we designed a new audiovisual assay of repellent activity against mosquitoes "Singing in the Tube," testing single mosquitoes in Drosophila cultivation tubes. Statistics with regression analysis should compensate for limitations of simple hardware. The assay was established with female Culex pipiens mosquitoes in 60 experiments, 120-h audio recording, and 2580 estimations of the distance between mosquito sitting position and the chemical. Correlations between parameters of sitting position, flight activity pattern, and flight tone spectrum were analyzed. Regression analysis of psycho-acoustic data of audio files (dB[A]) used a squared and modified sinus function determining wing beat frequency WBF ± SD (357 ± 47 Hz). Application of logistic regression defined the repelling velocity constant. The repelling velocity constant showed a decreasing order of efficiency of plant essential oils: rosemary (Rosmarinus officinalis), eucalyptus (Eucalyptus globulus), lavender (Lavandula angustifolia), citronella (Cymbopogon nardus), tea tree (Melaleuca alternifolia), clove (Syzygium aromaticum), lemon (Citrus limon), patchouli (Pogostemon cablin), DEET, cedar wood (Cedrus atlantica). In conclusion, we suggest (1) disease vector control (e.g., impregnation of bed nets) by eight plant essential oils with repelling velocity superior to DEET, (2) simple mosquito repellency testing in Drosophila cultivation tubes, (3) automated approaches and room surveillance by generally available audio equipment (dB[A]: ISO standard 226), and (4) quantification of repellent activity by parameters of the audiovisual assay defined by correlation and regression analyses. PMID:26412058

  14. DANCING AROUND THE SUBJECT WITH ROBOTS: ETHICAL COMMUNICATION AS A “TRIPLE AUDIOVISUAL REALITY”

    Directory of Open Access Journals (Sweden)

    Eleanor Sandry

    2012-06-01

    Full Text Available Communication is often thought of as a bridge between self and other, supported by what they have in common, and pursued with the aim of further developing this commonality. However, theorists such as John Durham Peters and Amit Pinchevski argue that this conception, connected as it is with the need to resolve and remove difference, is inherently ‘violent’ to the other and therefore unethical. To encourage ethical communication, they suggest that theory should instead support acts of communication for which the differences between self and other are not only retained, but also valued for the possibilities they offer. As a means of moving towards a more ethical stance, this paper stresses the importance of understanding communication as more than the transmission of information in spoken and written language. In particular, it draws on Fernando Poyatos’ research into simultaneous translation, which suggests that communication is a “triple audiovisual reality” consisting of language, paralanguage and kinesics. This perspective is then extended by considering the way in which Alan Fogel’s dynamic systems model also stresses the place of nonverbal signs. The paper explores and illustrates these theories by considering human-robot interactions because analysis of such interactions, with both humanoid and non-humanoid robots, helps to draw out the importance of paralanguage and kinesics as elements of communication. The human-robot encounters discussed here also highlight the way in which these theories position both reason and emotion as valuable in communication. The resulting argument – that communication occurs as a dynamic process, relying on a triple audiovisual reality drawn from both reason and emotion – supports a theoretical position that values difference, rather than promoting commonality as a requirement for successful communicative events. In conclusion, this paper extends this theory and suggests that it can form a basis

  15. Traduzione audiovisiva: teoria e pratica dell'adattamento Audiovisual translation: Theory and practice

    Directory of Open Access Journals (Sweden)

    Eleonora Fois

    2012-12-01

    Full Text Available La traduzione audiovisiva è un settore ancora relativamente giovane ed inesplorato dei Translation Studies. Pur essendo lo strumento di fruizione principale di prodotti audiovisivi sul grande e piccolo schermo, l'adattamento viene guardato con sospetto da critici e studiosi, che non concordano nemmeno sulla definizione scientifica. Dopo aver presentato le diverse tipologie di traduzione audiovisiva, l'articolo si concentra sulle tappe del processo di adattamento: le sfide linguistiche, gli accorgimenti tecnici spesso non considerati nell'analisi dell'attività, le constraints, le figure coinvolte, e non ultime le regolamentazioni uniformizzanti del settore. La scelta del case study cade su South Park come ottimo esempio di sfida traduttiva che si snoda su molteplici livelli, per analizzare quali sono i problemi concreti che si presentano ad ogni battuta e ad ogni frame, e verificare le vittorie e le sconfitte del mestiereAudiovisual translation is a relatively new  and yet quite unexplored branch of translation studies. Despite being the main means for the enjoinment of big screen and television products, adaptation still arouses suspicion in scholars and critics, who do not even agree on its definition. After presenting the different kinds of audiovisual translation, the article focuses on the steps of the adaptation process: linguistic challenges, technical solutions which often pass unnoticed in an analysis, constraints, the professionals involved, and, last but not least, the norms which rule and conform the field. The choice for the case study has fallen on South Park, an excellent example of challenge on multiple levels which gives the chance to analyse the actual problems every frame or line presents, and to verify victories and losses of the job.

  16. Brain Activity Throughout Audiovisual Speech Perception by Functional Magnetic Resonance Imaging

    Directory of Open Access Journals (Sweden)

    Shohreh Jalaie

    2011-06-01

    Full Text Available Background and Aim: Neuroimaging techniques in audiovisual speech processing are innovative approach to neuroscience investigation that steadily influences the deep survey of highly mechanisms involved in this process. The purpose of this study was to evaluate brain activity via functional magnetic resonance imaging throughout audiovisual speech perception in Persian language.Methods: Functional MRI was used to assess 19 normal 20-30 year old women while they had been presented syllable /ka/ visually and /pa/ auditory using block design method, in which it would provide two series of imaging, functional and T1-weighted. Subsequently, the results were analyzed and compared by FSL software.Results: The results of this study pointed out that both middle and cortical regions of brain are activated in visual stimuli and its middle regions are activated in response to auditory stimuli. Hence, left anterior supramarginal, some parts of motor speech system including insular and cingulate cortex-precentral cortex were stimulated with visual stimulus and left posterior supramarginal as well as right supramarginal gyrus were stimulated with auditory stimulus. Moreover, in this investigation, McGurk effect was behaviorally proven in fifteen subjects.Conclusion: It was hypothesized that the activation of unique region, supramarginal gyrus, with both audio and visual stimuli indicated the presence of commonplace region for phonologic processing of sensory inputs. In addition, auditory stimuli develop more intense activity; and on the other hand, broaden-maximum voxel-as well as extra regions are demonstrated in response to visual stimuli. These points represent the unfamiliarity of normal individual brain to percept visual speech stimuli.

  17. Audiovisual biofeedback improves image quality and reduces scan time for respiratory-gated 3D MRI

    International Nuclear Information System (INIS)

    The purpose of this study was to test the hypothesis that audiovisual (AV) biofeedback can improve image quality and reduce scan time for respiratory-gated 3D thoracic MRI. For five healthy human subjects respiratory motion guidance in MR scans was provided using an AV biofeedback system, utilizing real-time respiratory motion signals. To investigate the improvement of respiratory-gated 3D MR images between free breathing (FB) and AV biofeedback (AV), each subject underwent two imaging sessions. Respiratory-related motion artifacts and imaging time were qualitatively evaluated in addition to the reproducibility of external (abdominal) motion. In the results, 3D MR images in AV biofeedback showed more anatomic information such as a clear distinction of diaphragm, lung lobes and sharper organ boundaries. The scan time was reduced from 401±215 s in FB to 334±94 s in AV (p-value 0.36). The root mean square variation of the displacement and period of the abdominal motion was reduced from 0.4±0.22 cm and 2.8±2.5 s in FB to 0.1±0.15 cm and 0.9±1.3 s in AV (p-value of displacement <0.01 and p-value of period 0.12). This study demonstrated that audiovisual biofeedback improves image quality and reduces scan time for respiratory-gated 3D MRI. These results suggest that AV biofeedback has the potential to be a useful motion management tool in medical imaging and radiation therapy procedures.

  18. Language Practice with Multimedia Supported Web-Based Grammar Revision Material

    Science.gov (United States)

    Baturay, Meltem Huri; Daloglu, Aysegul; Yildirim, Soner

    2010-01-01

    The aim of this study was to investigate the perceptions of elementary-level English language learners towards web-based, multimedia-annotated grammar learning. WEBGRAM, a system designed to provide supplementary web-based grammar revision material, uses audio-visual aids to enrich the contextual presentation of grammar and allows learners to…

  19. Creatividad y producción audiovisual en la red: el caso de la serie andaluza

    Directory of Open Access Journals (Sweden)

    Jiménez Marín, Gloria

    2012-01-01

    Full Text Available En español: La Web 2.0 ha posibilitado que jóvenes creadores generen contenido audiovisual y puedan difundirlo a través de los medios sociales, sin necesidad de pasar por los canales habituales de distribución, hasta ahora imprescindibles. Al otro lado del ordenador o de los dispositivos móviles le esperan receptores ansiosos por consumir vídeo, una actividad a la que cada vez dedicamos más horas… con una diferencia fundamental: hemos dejado de ver el televisor para consumir más audiovisual online en otro tipo de sistemas y aparatos emisores. Gracias a este contexto, en Andalucía vivimos el nacimiento de series, consideradas ya de culto, que han puesto de manifiesto el potencial de nuestros jóvenes creadores. Sin embargo, la realización periódica de capítulos supone un esfuerzo económico que la mayoría de ellos no pueden sufragar. Mientras, las agencias de comunicación se enfrentan al fenómeno de la publicidad online. Los ejecutivos se encuentran ante receptores que ansían experiencias y contenido: éstas son las claves de la publicidad 2.0. Y a partir de aquí, las piezas comienzan a funcionar: unos poseen las ideas, el contenido; otros, la financiación. Tal es el caso de Niña Repelente, una de las series online que mayor repercusión ha tenido en los últimos años y su acuerdo de patrocinio con la compañía líder de telefonía en España, firmado en 2010, que ha supuesto la difusión de la serie en Tuenti, la red social autóctona de más uso entre los jóvenes españoles. El caso referido da pie a este trabajo que analiza las claves de esas transformaciones en las distintas fases de la creación audiovisual (creación, distribución, consumo, al tiempo que estudia las variables críticas y abre preguntas para el mundo de la comunicación a partir de las últimas tendencias en las aplicaciones web.In english: The Web 2.0 has done that young designers can generate and disseminate audiovisual content through social media

  20. Sound and Music in Narrative Multimedia : A macroscopic discussion of audiovisual relations and auditory narrative functions in film, television and video games

    OpenAIRE

    2012-01-01

    This thesis examines how we perceive an audiovisual narrative - here defined as film, television and video games - and seeks to establish a descriptive framework for auditory stimuli and their narrative functions in this regard. I initially adopt the viewpoint of cognitive psychology an account for basic information processing operations. I then discuss audiovisual perception in terms of the effects of sensory integration between the visual and auditory modalities on the construction of meani...

  1. Aula virtual y presencial en aprendizaje de comunicación audiovisual y educación Virtual and Real Classroom in Learning Audiovisual Communication and Education

    Directory of Open Access Journals (Sweden)

    Josefina Santibáñez Velilla

    2010-10-01

    Full Text Available El modelo mixto de enseñanza-aprendizaje pretende utilizar las tecnologías de la información y de la comunicación (TIC para garantizar una formación más ajustada al Espacio Europeo de Educación Superior (EEES. Se formularon los siguientes objetivos de investigación: Averiguar la valoración que hacen los alumnos de Magisterio del aula virtual WebCT como apoyo a la docencia presencial, y conocer las ventajas del uso de la WebCT y de las TIC por los alumnos en el estudio de caso: «Valores y contravalores transmitidos por series televisivas visionadas por niños y adolescentes». La investigación se realizó con una muestra de 205 alumnos de la Universidad de La Rioja que cursaban la asignatura de «Tecnologías aplicadas a la Educación». Para la descripción objetiva, sistemática y cuantitativa del contenido manifiesto de los documentos se ha utilizado la técnica de análisis de contenido cualitativa y cuantitativa. Los resultados obtenidos demuestran que las herramientas de comunicación, contenidos y evaluación son valoradas favorablemente por los alumnos. Se llega a la conclusión de que la WebCT y las TIC constituyen un apoyo a la innovación metodológica del EEES basada en el aprendizaje centrado en el alumno. Los alumnos evidencian su competencia audiovisual en los ámbitos de análisis de valores y de expresión a través de documentos audiovisuales en formatos multimedia. Dichos alumnos aportan un nuevo sentido innovador y creativo al uso docente de series televisivas.The mixed model of Teaching-Learning intends to use Information and Communication Technologies (ICTs to guarantee an education more adjusted to European Space for Higher Education (ESHE. The following research objectives were formulated: 1 To find out the assessment made by teacher-training college students of the virtual classroom WebCT as an aid to face-to-face teaching. 2 To know the advantages of the use of WebCT and ICTs by students in the case study:

  2. Alfasecuencialización: la enseñanza del cine en la era del audiovisual Sequential literacy: the teaching of cinema in the age of audio-visual speech

    OpenAIRE

    José Antonio Palao Errando

    2007-01-01

    En la llamada «sociedad de la información» los estudios sobre cine se han visto diluidos en el abordaje pragmático y tecnológico del discurso audiovisual, así como la propia fruición del cine se ha visto atrapada en la red del DVD y del hipertexto. El propio cine reacciona ante ello a través de estructuras narrativas complejas que lo alejan del discurso audiovisual estándar. La función de los estudios sobre cine y de su enseñanza universitaria debe ser la reintroducción del sujeto rechazado d...

  3. Production of Audiovisual Content in Ultra High Definition (UHD: Immersive Experience for Multimedia Viewing Screen TV and Smartphones

    Directory of Open Access Journals (Sweden)

    Francisco Javier MONTEMAYOR RUIZ

    2016-06-01

    Full Text Available This research analyzes the production of audiovisual content in ultra high definition (UHD as a catalyst factor of the new narratological discourse implanted in the media to the expressive, interactive and immersive possibilities obtained with the use of UHD 4K and 8K for viewing on large screen and, especially, in the 'fourth screen'. Through indepth interviews with experts from the academic and professional media world it is to establish an overview of the convergence of technology and industry of content creation, where the products are evolving to as for the entertainment needs of digital natives and adapting to new forms of consumption across multiple platforms, facing, in this way, a new business model for both industry technology industry and for the entire audiovisual sector.

  4. Pirata ou empreendedor? – A destruição criativa na indústria de conteúdo audiovisual

    Directory of Open Access Journals (Sweden)

    André Tortato Rauen

    2013-04-01

    Full Text Available Este artigo tem por objetivo analisar a recente contestação dos serviços de compartilhamento de dados online frente ao conceito de destruição criativa proposto por Joseph Alois Schumpeter em meados do século passado. Para tanto, o mesmo se apoia nos conceitos e exemplos desenvolvidos em seus trabalhos de 1912, 1939 e 1942. Essa análise permitiu concluir que, a contestação dos serviços de compartilhamento online de dados é um esforço da antiga indústria de distribuição e de produção de conteúdo audiovisual, que, como instituição capitalista ultrapassada, tenta evitar seu desaparecimento frente a formas tecnologicamente superiores de negócio. Palavras-chave: destruição criativa, compartilhamento de dados, indústria audiovisual.

  5. El vídeo esférico en Youtube y su influencia en el contenido audiovisual

    Directory of Open Access Journals (Sweden)

    Jorge Gallardo-Camacho

    2015-01-01

    Full Text Available Este artículo analiza la eclosión de los vídeos de 360 grados disponiblesen Youtube desde marzo de 2015. El lenguaje audiovisual se transforma conlos vídeos esféricos que permiten modificar el punto de vista del espectador. Analizaremos la evolución tecnológica, la difusión y, principalmente, el contenido de este nuevo tipo de vídeos que modifican la experiencia del espectador. Para ello observaremos los 20 vídeos más vistos con esta nueva tecnología en Youtube España hasta septiembre de 2015. Concluiremos que los vídeos esféricos influyen sobre el contenido que queda supeditado ante esta forma de presentación audiovisual preferiblemente consumida en dispositivos móviles.

  6. El lugar de la Antropología audiovisual: metodología participativa y espacios profesionales

    Directory of Open Access Journals (Sweden)

    Juan Robles

    2012-09-01

    Full Text Available La Antropología audiovisual conecta de modo directo con la esencia misma de la Antropología sociocultural,la cual pretende vincularse a la orientación pública, que se quiere teórica y aplicada, autorreferencialy compartida, que busca la superación de la parálisis metadiscursiva vinculada a la crisis representacional,desde la integración en el texto fílmico del encuentro intercultural y ante la necesidad de relegitimarse metodológicamentepara ocupar el espacio que le corresponde en los debates seculares en relación a las profundastransformaciones sociales en curso. Esta opción metodológica reubica a la Antropología audiovisual en unespacio profesional lleno de oportunidades y riesgos.

  7. Lousa Digital Interativa: avaliação da interação didática e proposta de aplicação de narrativa audiovisual / Interactive White Board – IWB: assessment in interaction didactic and audiovisual narrative proposal

    OpenAIRE

    Francisco García García; Rogério Garcia Fernandez; Karla Isabel de Souza

    2011-01-01

    O uso de audiovisual em sala de aula não garante uma eficácia na aprendizagem, mas para os estudantes é um elemento interessante e ainda atrativo. Este trabalho — uma aproximação de duas pesquisas: a primeira apresenta a importância da interação didática com a LDI e a segunda, uma lista de elementos de narrativa audiovisual que podem ser aplicados em sala de aula — propõe o domínio de elementos da narrativa audiovisual como uma possibilidade teórica para o professor que quer produzir um conte...

  8. STUDIO AZZURRO: TRES DÉCADAS DE EXPERIMENTACIÓN EN LA CREACIÓN AUDIOVISUAL Y LOS ESPACIOS SENSORIALES.

    OpenAIRE

    VALDALISO CASANOVA, TERESA

    2016-01-01

    [EN] Studio Azzurro is, probably, the main exponent in the field of research, experimentation and artistic hybridization with regard to the audio-visual language and the new technologies, inside the current Italian scene. Founded in Milan in 1982 by three artists, Paolo Rosa, Fabio Cirifino and Leonardo Sangiorgi, from the beginning they have opted for the collaborative team work, distancing themselves from the opinions of the critique and from the art market. Characterized by a militant past...

  9. The efectiveness of mnemonic audio-visual aids in teaching content words to EFL students at a Turkish university

    OpenAIRE

    Kılınç, A Reha

    1996-01-01

    Ankara : Institute of Economics and Social Sciences, Bilkent University, 1996. Thesis(Master's) -- Bilkent University, 1996. Includes bibliographical references leaves 63-67 This experimental study aimed at investigating the effects of mnemonic audio-visual aids on recognition and recall of vocabulary items in comparison to a dictionary using control group. The study was conducted at Middle East Technical University Department of Basic English. The participants were 64 beginner and u...

  10. The Whole Is More than the Sum of Its Parts--Audiovisual Processing of Phonemes Investigated with ERPs

    Science.gov (United States)

    Hessler, Dorte; Jonkers, Roel; Stowe, Laurie; Bastiaanse, Roelien

    2013-01-01

    In the current ERP study, an active oddball task was carried out, testing pure tones and auditory, visual and audiovisual syllables. For pure tones, an MMN, an N2b, and a P3 were found, confirming traditional findings. Auditory syllables evoked an N2 and a P3. We found that the amplitude of the P3 depended on the distance between standard and…

  11. HIFI-AV: An Audio-visual Corpus for Spoken Language Human-Machine Dialogue Research in Spanish

    OpenAIRE

    Fernández Martínez, Fernando; Lucas Cuesta, Juan Manuel; Barra Chicote, Roberto; Ferreiros López, Javier; Macías Guarasa, Javier

    2010-01-01

    In this paper, we describe a new multi-purpose audio-visual database on the context of speech interfaces for controlling household electronic devices. The database comprises speech and video recordings of 19 speakers interacting with a HIFI audio box by means of a spoken dialogue system. Dialogue management is based on Bayesian Networks and the system is provided with contextual information handling strategies. Each speaker was requested to fulfil different sets of specific goals following pred...

  12. Repertorio bibliográfico sobre traducción audiovisual: fuentes relacionadas con la lengua francesa

    OpenAIRE

    Delgado Pugés, Iván

    2009-01-01

    El presente artículo bibliográfico constituye un estado de la cuestión de la Traducción Audiovisual en su relación con la lengua francesa. Presentamos un panorama actualizado y dividido en varias secciones (doblaje, subtitulación, adaptación, accesibilidad, didáctica, investigación, etc.) con objeto de facilitar al lector la búsqueda de una fuente bibliográfica concreta.

  13. From vibration to perception: using Large Multi-Actuator Panels (LaMAPs) to create coherent audio-visual environments

    OpenAIRE

    Rébillat, Marc; Corteel, Etienne; Katz, Brian,; Boutillon, Xavier

    2012-01-01

    International audience Virtual reality aims at providing users with audio-visual worlds where they will behave and learn as if they were in the real world. In this context, specific acoustic transducers are needed to fulfill simultaneous spatial requirements on visual and audio rendering in order to make them coherent. Large multi-actuator panels (LaMAPs) allow for the combined construction of a projection screen and loudspeaker array, and thus allows for the coherent creation of an audio ...

  14. Audio-Visual Biofeedback Does Not Improve the Reliability of Target Delineation Using Maximum Intensity Projection in 4-Dimensional Computed Tomography Radiation Therapy Planning

    Energy Technology Data Exchange (ETDEWEB)

    Lu, Wei, E-mail: wlu@umm.edu [Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland (United States); Neuner, Geoffrey A.; George, Rohini; Wang, Zhendong; Sasor, Sarah [Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland (United States); Huang, Xuan [Research and Development, Care Management Department, Johns Hopkins HealthCare LLC, Glen Burnie, Maryland (United States); Regine, William F.; Feigenberg, Steven J.; D' Souza, Warren D. [Department of Radiation Oncology, University of Maryland School of Medicine, Baltimore, Maryland (United States)

    2014-01-01

    Purpose: To investigate whether coaching patients' breathing would improve the match between ITV{sub MIP} (internal target volume generated by contouring in the maximum intensity projection scan) and ITV{sub 10} (generated by combining the gross tumor volumes contoured in 10 phases of a 4-dimensional CT [4DCT] scan). Methods and Materials: Eight patients with a thoracic tumor and 5 patients with an abdominal tumor were included in an institutional review board-approved prospective study. Patients underwent 3 4DCT scans with: (1) free breathing (FB); (2) coaching using audio-visual (AV) biofeedback via the Real-Time Position Management system; and (3) coaching via a spirometer system (Active Breathing Coordinator or ABC). One physician contoured all scans to generate the ITV{sub 10} and ITV{sub MIP}. The match between ITV{sub MIP} and ITV{sub 10} was quantitatively assessed with volume ratio, centroid distance, root mean squared distance, and overlap/Dice coefficient. We investigated whether coaching (AV or ABC) or uniform expansions (1, 2, 3, or 5 mm) of ITV{sub MIP} improved the match. Results: Although both AV and ABC coaching techniques improved frequency reproducibility and ABC improved displacement regularity, neither improved the match between ITV{sub MIP} and ITV{sub 10} over FB. On average, ITV{sub MIP} underestimated ITV{sub 10} by 19%, 19%, and 21%, with centroid distance of 1.9, 2.3, and 1.7 mm and Dice coefficient of 0.87, 0.86, and 0.88 for FB, AV, and ABC, respectively. Separate analyses indicated a better match for lung cancers or tumors not adjacent to high-intensity tissues. Uniform expansions of ITV{sub MIP} did not correct for the mismatch between ITV{sub MIP} and ITV{sub 10}. Conclusions: In this pilot study, audio-visual biofeedback did not improve the match between ITV{sub MIP} and ITV{sub 10}. In general, ITV{sub MIP} should be limited to lung cancers, and modification of ITV{sub MIP} in each phase of the 4DCT data set is recommended.

  15. Assessing the effect of culturally specific audiovisual educational interventions on attaining self-management skills for chronic obstructive pulmonary disease in Mandarin- and Cantonese-speaking patients: a randomized controlled trial

    Science.gov (United States)

    Poureslami, Iraj; Kwan, Susan; Lam, Stephen; Khan, Nadia A; FitzGerald, John Mark

    2016-01-01

    Background Patient education is a key component in the management of chronic obstructive pulmonary disease (COPD). Delivering effective education to ethnic groups with COPD is a challenge. The objective of this study was to develop and assess the effectiveness of culturally and linguistically specific audiovisual educational materials in supporting self-management practices in Mandarin- and Cantonese-speaking patients. Methods Educational materials were developed using participatory approach (patients involved in the development and pilot test of educational materials), followed by a randomized controlled trial that assigned 91 patients to three intervention groups with audiovisual educational interventions and one control group (pamphlet). The patients were recruited from outpatient clinics. The primary outcomes were improved inhaler technique and perceived self-efficacy to manage COPD. The secondary outcome was improved patient understanding of pulmonary rehabilitation procedures. Results Subjects in all three intervention groups, compared with control subjects, demonstrated postintervention improvements in inhaler technique (P<0.001), preparedness to manage a COPD exacerbation (P<0.01), ability to achieve goals in managing COPD (P<0.01), and understanding pulmonary rehabilitation procedures (P<0.05). Conclusion Culturally appropriate educational interventions designed specifically to meet the needs of Mandarin and Cantonese COPD patients are associated with significantly better understanding of self-management practices. Self-management education led to improved proper use of medications, ability to manage COPD exacerbations, and ability to achieve goals in managing COPD. Clinical implication A relatively simple culturally appropriate disease management education intervention improved inhaler techniques and self-management practices. Further research is needed to assess the effectiveness of self-management education on behavioral change and patient empowerment

  16. Introducing the Interactive Model for the Training of Audiovisual Translators and Analysis of Multimodal Texts

    Directory of Open Access Journals (Sweden)

    Pietro Luigi Iaia

    2015-07-01

    Full Text Available Abstract – This paper introduces the ‘Interactive Model’ of audiovisual translation developed in the context of my PhD research on the cognitive-semantic, functional and socio-cultural features of the Italian-dubbing translation of a corpus of humorous texts. The Model is based on two interactive macro-phases – ‘Multimodal Critical Analysis of Scripts’ (MuCrAS and ‘Multimodal Re-Textualization of Scripts’ (MuReTS. Its construction and application are justified by a multidisciplinary approach to the analysis and translation of audiovisual texts, so as to focus on the linguistic and extralinguistic dimensions affecting both the reception of source texts and the production of target ones (Chaume 2004; Díaz Cintas 2004. By resorting to Critical Discourse Analysis (Fairclough 1995, 2001, to a process-based approach to translation and to a socio-semiotic analysis of multimodal texts (van Leeuwen 2004; Kress and van Leeuwen 2006, the Model is meant to be applied to the training of audiovisual translators and discourse analysts in order to help them enquire into the levels of pragmalinguistic equivalence between the source and the target versions. Finally, a practical application shall be discussed, detailing the Italian rendering of a comic sketch from the American late-night talk show Conan.Abstract – Questo studio introduce il ‘Modello Interattivo’ di traduzione audiovisiva sviluppato durante il mio dottorato di ricerca incentrato sulle caratteristiche cognitivo-semantiche, funzionali e socio-culturali della traduzione italiana per il doppiaggio di un corpus di testi comici. Il Modello è costituito da due fasi: la prima, di ‘Analisi critica e multimodale degli script’ (MuCrAS e la seconda, di ‘Ritestualizzazione critica e multimodale degli script’ (MuReTS, e la sua costruzione e applicazione sono frutto di un approccio multidisciplinare all’analisi e traduzione dei testi audiovisivi, al fine di esaminare le

  17. Interfractional Positional Variability of Fiducial Markers and Primary Tumors in Locally Advanced Non-Small-Cell Lung Cancer During Audiovisual Biofeedback Radiotherapy

    Energy Technology Data Exchange (ETDEWEB)

    Roman, Nicholas O., E-mail: nroman@mcvh-vcu.edu [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States); Shepherd, Wes [Department of Pulmonology, Virginia Commonwealth University, Richmond, VA (United States); Mukhopadhyay, Nitai [Department of Biostatistics, Virginia Commonwealth University, Richmond, VA (United States); Hugo, Geoffrey D.; Weiss, Elisabeth [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States)

    2012-08-01

    Purpose: To evaluate implanted markers as a surrogate for tumor-based setup during image-guided lung cancer radiotherapy with audiovisual biofeedback. Methods and Materials: Seven patients with locally advanced non-small-cell lung cancer were implanted bronchoscopically with gold coils. Markers, tumor, and a reference bony structure (vertebra) were contoured for all 10 phases of the four-dimensional respiration-correlated fan-beam computed tomography and weekly four-dimensional cone-beam computed tomography. Results: The systematic/random interfractional marker-to-tumor centroid displacements were 2/3, 2/2, and 3/3 mm in the x (lateral), y (anterior-posterior), and z (superior-inferior) directions, respectively. The systematic/random interfractional marker-to-bone displacements were 2/3, 2/3, and 2/3 mm in the x, y, and z directions, respectively. The systematic/random tumor-to-bone displacements were 2/3, 2/4, and 4/4 mm in the x, y, and z directions, respectively. All displacements changed significantly over time (p < 0.0001). Conclusions: Although marker-based image guidance may decrease the risk for geometric miss compared with bony anatomy-based positioning, the observed displacements between markers and tumor centroids indicate the need for repeated soft tissue imaging, particularly in situations with large tumor volume change and large initial marker-to-tumor centroid distance.

  18. Interfractional Positional Variability of Fiducial Markers and Primary Tumors in Locally Advanced Non-Small-Cell Lung Cancer During Audiovisual Biofeedback Radiotherapy

    International Nuclear Information System (INIS)

    Purpose: To evaluate implanted markers as a surrogate for tumor-based setup during image-guided lung cancer radiotherapy with audiovisual biofeedback. Methods and Materials: Seven patients with locally advanced non-small-cell lung cancer were implanted bronchoscopically with gold coils. Markers, tumor, and a reference bony structure (vertebra) were contoured for all 10 phases of the four-dimensional respiration-correlated fan-beam computed tomography and weekly four-dimensional cone-beam computed tomography. Results: The systematic/random interfractional marker-to-tumor centroid displacements were 2/3, 2/2, and 3/3 mm in the x (lateral), y (anterior–posterior), and z (superior–inferior) directions, respectively. The systematic/random interfractional marker-to-bone displacements were 2/3, 2/3, and 2/3 mm in the x, y, and z directions, respectively. The systematic/random tumor-to-bone displacements were 2/3, 2/4, and 4/4 mm in the x, y, and z directions, respectively. All displacements changed significantly over time (p < 0.0001). Conclusions: Although marker-based image guidance may decrease the risk for geometric miss compared with bony anatomy–based positioning, the observed displacements between markers and tumor centroids indicate the need for repeated soft tissue imaging, particularly in situations with large tumor volume change and large initial marker-to-tumor centroid distance.

  19. Future-saving audiovisual content for Data Science: Preservation of geoinformatics video heritage with the TIB|AV-Portal

    Science.gov (United States)

    Löwe, Peter; Plank, Margret; Ziedorn, Frauke

    2015-04-01

    In data driven research, the access to citation and preservation of the full triad consisting of journal article, research data and -software has started to become good scientific practice. To foster the adoption of this practice the significance of software tools has to be acknowledged, which enable scientists to harness auxiliary audiovisual content in their research work. The advent of ubiquitous computer-based audiovisual recording and corresponding Web 2.0 hosting platforms like Youtube, Slideshare and GitHub has created new ecosystems for contextual information related to scientific software and data, which continues to grow both in size and variety of content. The current Web 2.0 platforms lack capabilities for long term archiving and scientific citation, such as persistent identifiers allowing to reference specific intervals of the overall content. The audiovisual content currently shared by scientists ranges from commented howto-demonstrations on software handling, installation and data-processing, to aggregated visual analytics of the evolution of software projects over time. Such content are crucial additions to the scientific message, as they ensure that software-based data-processing workflows can be assessed, understood and reused in the future. In the context of data driven research, such content needs to be accessible by effective search capabilities, enabling the content to be retrieved and ensuring that the content producers receive credit for their efforts within the scientific community. Improved multimedia archiving and retrieval services for scientific audiovisual content which meet these requirements are currently implemented by the scientific library community. This paper exemplifies the existing challenges, requirements, benefits and the potential of the preservation, accessibility and citability of such audiovisual content for the Open Source communities based on the new audiovisual web service TIB|AV Portal of the German National Library

  20. Open-Loop Audio-Visual Stimulation (AVS): A Useful Tool for Management of Insomnia?

    Science.gov (United States)

    Tang, Hsin-Yi Jean; Riegel, Barbara; McCurry, Susan M; Vitiello, Michael V

    2016-03-01

    Audio Visual Stimulation (AVS), a form of neurofeedback, is a non-pharmacological intervention that has been used for both performance enhancement and symptom management. We review the history of AVS, its two sub-types (close- and open-loop), and discuss its clinical implications. We also describe a promising new application of AVS to improve sleep, and potentially decrease pain. AVS research can be traced back to the late 1800s. AVS's efficacy has been demonstrated for both performance enhancement and symptom management. Although AVS is commonly used in clinical settings, there is limited literature evaluating clinical outcomes and mechanisms of action. One of the challenges to AVS research is the lack of standardized terms, which makes systematic review and literature consolidation difficult. Future studies using AVS as an intervention should; (1) use operational definitions that are consistent with the existing literature, such as AVS, Audio-visual Entrainment, or Light and Sound Stimulation, (2) provide a clear rationale for the chosen training frequency modality, (3) use a randomized controlled design, and (4) follow the Consolidated Standards of Reporting Trials and/or related guidelines when disseminating results. PMID:26294268

  1. Live Broadcasting of High Definition Audiovisual Content Using HDTV over Broadband IP Networks

    Directory of Open Access Journals (Sweden)

    C. A. Dimoulas

    2009-02-01

    Full Text Available The current paper focuses on validating an implementation of a state-of-the art audiovisual (AV technologies setup for live broadcasting of cultural shows, via broadband Internet. The main objective of the work was to study, configure, and setup dedicated audio-video equipment for the processes of capturing, processing, and transmission of extended resolution and high fidelity AV content in order to increase realism and achieve maximum audience sensation. Internet2 and GEANT broadband telecommunication networks were selected as the most applicable technology to deliver such traffic workloads. Validation procedures were conducted in combination with metric-based quality of service (QoS and quality of experience (QoE evaluation experiments for the quantification and the perceptual interpretation of the quality achieved during content reproduction. The implemented system was successfully applied in real-world applications, such as the transmission of cultural events from Thessaloniki Concert Hall throughout Greece as well as the reproduction of Philadelphia Orchestra performances (USA via Internet2 and GEANT backbones.

  2. [The Effect of Audiovisual Stimulation on Psychological and Physiological Functions in Athletes].

    Science.gov (United States)

    Golovin, M S; Balioz, N V; Aizman, R I; Krivoschekov, S G

    2015-01-01

    We studied the psychophysiological status (cognitive, psychoemotional and neurodynamic parameters), the power spectrum of EEG and heart rate variability of 18-23-year-old athletes, before and after a course of audiovisual stimulation (AVS) (experimental group) in comparison with sportsmen who did not receive AVS (control group). It was shown that a course of AVS (experimental group) has positive effect on psycho-emotional parameters (the levels of anxiety and neuroticism decreased; motivation to make progress and the level of hardiness increased), cognitive and neurodynamic parameters (the capacity of mechanical memory, the speed of attention switching and of a simple sensor-motor response increase; the range of fluctuation of reactions to a moving object is reduced). We also observed an increase in the power of α2 rhythm of EEG, the activity of parasympathetic nervous system and the influence of autonomic circuit of regulation in the experimental group; resting cardiac performance was more conservative as compared with the control group. We concluded that a course of AVS has positive effect on psychophysiological parameters and the mechanisms of autonomic heart regulation in athletes. PMID:26601412

  3. A New Development in Audiovisual Translation Studies: Focus on Target Audience Perception

    Directory of Open Access Journals (Sweden)

    John Denton

    2013-03-01

    Full Text Available Audiovisual translation is now a well-established sub-discipline of Translation Studies (TS: a position that it has reached over the last twenty years or so. Italian scholars and professionals in the field have made a substantial contribution to this successful development, a brief overview of which will be given in the first part of this article, inevitably concentrating on dubbing in the Italian context. Special attention will be devoted to the question of target audience perception, an area where researchers in the University of Bologna at Forlì have excelled. The second part of the article applies the methodology followed by the above mentioned researchers in a case study of how Italian end users perceive the dubbed version of the British film The History Boys (2006, which contains a plethora of culture-specific verbal and visual references to the English education system. The aim of the study was to ascertain: a whether translation/adaptation allows the transmission in this admittedly constrained medium of all the intended culture-bound issues, only too well known to the source audience, and, if so, to what extent, and b whether the target audience respondents to the e-questionnaire used were aware that they were missing information. The linked, albeit controversial, issue of quality assessment will also be addressed.

  4. The duration of uncertain times: audiovisual information about intervals is integrated in a statistically optimal fashion.

    Directory of Open Access Journals (Sweden)

    Jess Hartcher-O'Brien

    Full Text Available Often multisensory information is integrated in a statistically optimal fashion where each sensory source is weighted according to its precision. This integration scheme isstatistically optimal because it theoretically results in unbiased perceptual estimates with the highest precisionpossible.There is a current lack of consensus about how the nervous system processes multiple sensory cues to elapsed time.In order to shed light upon this, we adopt a computational approach to pinpoint the integration strategy underlying duration estimationof audio/visual stimuli. One of the assumptions of our computational approach is that the multisensory signals redundantly specify the same stimulus property. Our results clearly show that despite claims to the contrary, perceived duration is the result of an optimal weighting process, similar to that adopted for estimates of space. That is, participants weight the audio and visual information to arrive at the most precise, single duration estimate possible. The work also disentangles how different integration strategies - i.e. consideringthe time of onset/offset ofsignals - might alter the final estimate. As such we provide the first concrete evidence of an optimal integration strategy in human duration estimates.

  5. Audio-Visual Based Multi-Sample Fusion to Enhance Correlation Filters Speaker Verification System

    Directory of Open Access Journals (Sweden)

    Dzati Athiar Ramli

    2010-07-01

    Full Text Available In this study, we propose a novel approach for speaker verification system that uses a spectrogram image as features and Unconstrained Minimum Average Correlation Energy (UMACE filters as classifiers. Since speech signal is a behavioral signal, the speech data has a tendency not to consistently reproduce due to the change of speaking rates, health, emotional conditions, temperature and humidity. In order to overcome this problem, a modification of UMACE filters architecture is proposed by executing a multi-sample fusion using speech and lipreading data. So as to evaluate the outstanding fusion scheme, five multisample fusion strategies, i.e. maximum, minimum, median, average and majority vote are first experimented using thespeech signal data. Afterward, the performance of the audiovisualsystem using the enhanced UMACE filters is then tested. Here, lipreading data is combined to the audio samples pool and the outstanding fusion scheme that found in prior experiment is used as multi-sample fusion scheme. The Digit Database had been used for performance evaluation and the performance up to 99.64% is achieved by using the enhanced UMACE filters for the speech only system which is 6.89% improvement compared with the base line approach. Subsequently, the implementation of the audio-visual system is observed to be significant in order to broaden the PSR score interval between the authentic and imposter data as well as to further improve the performance of audio only system that offer toward a robust verification system.

  6. Real-time decreased sensitivity to an audio-visual illusion during goal-directed reaching.

    Directory of Open Access Journals (Sweden)

    Luc Tremblay

    Full Text Available In humans, sensory afferences are combined and integrated by the central nervous system (Ernst MO, Bülthoff HH (2004 Trends Cogn. Sci. 8: 162-169 and appear to provide a holistic representation of the environment. Empirical studies have repeatedly shown that vision dominates the other senses, especially for tasks with spatial demands. In contrast, it has also been observed that sound can strongly alter the perception of visual events. For example, when presented with 2 flashes and 1 beep in a very brief period of time, humans often report seeing 1 flash (i.e. fusion illusion, Andersen TS, Tiippana K, Sams M (2004 Brain Res. Cogn. Brain Res. 21: 301-308. However, it is not known how an unfolding movement modulates the contribution of vision to perception. Here, we used the audio-visual illusion to demonstrate that goal-directed movements can alter visual information processing in real-time. Specifically, the fusion illusion was linearly reduced as a function of limb velocity. These results suggest that cue combination and integration can be modulated in real-time by goal-directed behaviors; perhaps through sensory gating (Chapman CE, Beauchamp E (2006 J. Neurophysiol. 96: 1664-1675 and/or altered sensory noise (Ernst MO, Bülthoff HH (2004 Trends Cogn. Sci. 8: 162-169 during limb movements.

  7. O vine e o diálogo audiovisual na cultura participativa

    Directory of Open Access Journals (Sweden)

    Sheron Neves

    2014-12-01

    Full Text Available No atual ambiente midiático, a audiência possui ferramentas não apenas para consumir mas para produzir e distribuir conteúdo. Em um mercado onde as fronteiras entre entretenimento e publicidade se tornam cada vez menos claras, o conteúdo audiovisual e as comunidades formadas ao seu redor se tornam temas de estudo relevantes. Dominado pelo YouTube na primeira década do milênio, o mercado do vídeo online vem se ampliando em função da tecnologia mobile, e aplicativos para rápida produção e consumo de vídeo, como o Vine, que se destaca pelo seu caráter social e colaborativo. A proposta deste trabalho é examinar o potencial do Vine na publicidade – não aquela tradicionalmente interruptiva e unilateral, mas sim uma publicidade que entretém, envolve e convida a participar. Para isto, o caso da campanha Hollywood and Vines, da Airbnb, será analisado.

  8. Differential Gaze Patterns on Eyes and Mouth During Audiovisual Speech Segmentation.

    Science.gov (United States)

    Lusk, Laina G; Mitchel, Aaron D

    2016-01-01

    Speech is inextricably multisensory: both auditory and visual components provide critical information for all aspects of speech processing, including speech segmentation, the visual components of which have been the target of a growing number of studies. In particular, a recent study (Mitchel and Weiss, 2014) established that adults can utilize facial cues (i.e., visual prosody) to identify word boundaries in fluent speech. The current study expanded upon these results, using an eye tracker to identify highly attended facial features of the audiovisual display used in Mitchel and Weiss (2014). Subjects spent the most time watching the eyes and mouth. A significant trend in gaze durations was found with the longest gaze duration on the mouth, followed by the eyes and then the nose. In addition, eye-gaze patterns changed across familiarization as subjects learned the word boundaries, showing decreased attention to the mouth in later blocks while attention on other facial features remained consistent. These findings highlight the importance of the visual component of speech processing and suggest that the mouth may play a critical role in visual speech segmentation. PMID:26869959

  9. Neuronal activity in primate auditory cortex during the performance of audiovisual tasks.

    Science.gov (United States)

    Brosch, Michael; Selezneva, Elena; Scheich, Henning

    2015-03-01

    This study aimed at a deeper understanding of which cognitive and motivational aspects of tasks affect auditory cortical activity. To this end we trained two macaque monkeys to perform two different tasks on the same audiovisual stimulus and to do this with two different sizes of water rewards. The monkeys had to touch a bar after a tone had been turned on together with an LED, and to hold the bar until either the tone (auditory task) or the LED (visual task) was turned off. In 399 multiunits recorded from core fields of auditory cortex we confirmed that during task engagement neurons responded to auditory and non-auditory stimuli that were task-relevant, such as light and water. We also confirmed that firing rates slowly increased or decreased for several seconds during various phases of the tasks. Responses to non-auditory stimuli and slow firing changes were observed during both the auditory and the visual task, with some differences between them. There was also a weak task-dependent modulation of the responses to auditory stimuli. In contrast to these cognitive aspects, motivational aspects of the tasks were not reflected in the firing, except during delivery of the water reward. In conclusion, the present study supports our previous proposal that there are two response types in the auditory cortex that represent the timing and the type of auditory and non-auditory elements of a auditory tasks as well the association between elements. PMID:25728179

  10. Audiovisual biofeedback improves image quality and reduces scan time for respiratory-gated 3D MRI

    Science.gov (United States)

    Lee, D.; Greer, P. B.; Arm, J.; Keall, P.; Kim, T.

    2014-03-01

    The purpose of this study was to test the hypothesis that audiovisual (AV) biofeedback can improve image quality and reduce scan time for respiratory-gated 3D thoracic MRI. For five healthy human subjects respiratory motion guidance in MR scans was provided using an AV biofeedback system, utilizing real-time respiratory motion signals. To investigate the improvement of respiratory-gated 3D MR images between free breathing (FB) and AV biofeedback (AV), each subject underwent two imaging sessions. Respiratory-related motion artifacts and imaging time were qualitatively evaluated in addition to the reproducibility of external (abdominal) motion. In the results, 3D MR images in AV biofeedback showed more anatomic information such as a clear distinction of diaphragm, lung lobes and sharper organ boundaries. The scan time was reduced from 401±215 s in FB to 334±94 s in AV (p-value 0.36). The root mean square variation of the displacement and period of the abdominal motion was reduced from 0.4±0.22 cm and 2.8±2.5 s in FB to 0.1±0.15 cm and 0.9±1.3 s in AV (p-value of displacement biofeedback improves image quality and reduces scan time for respiratory-gated 3D MRI. These results suggest that AV biofeedback has the potential to be a useful motion management tool in medical imaging and radiation therapy procedures.

  11. Everything that arises does not converge: the audiovisual and the incomplete

    Directory of Open Access Journals (Sweden)

    Caroline Bassett

    2013-01-01

    Full Text Available Computational culture is often explored through discourses of completion and in terms of the complete and this bias extends to accounts exploring new media and the senses, where it may be expressed in terms of priority as an assertion of the ‘proper’ ratio of the senses. In response this article explores the aesthetics of the incomplete, the latter understood as an intrinsic element of new media culture rather than an exception. It begins with claims that new media are essentially (ontologically sonic, reading this in contrast to the New Aesthetic and visual glitch and focussing on the consequences of the NA’s fierce concentration on the visual. This frames a consideration of sonic glitch in a public sound art work in which audiovisual technologies are reprogrammed to break down language – and open up a form of common space. The article concludes that the incomplete can be productively viewed as an intrinsic part of the contemporary digital formation: something ontologically given, but also something invoked, worked with and used in different ways. An issue for sound art, in this context, is to find ways to intervene in the incomplete rather than let it become (another site for the reflection and activation of existing industrial values.

  12. Audio-visual speech timing sensitivity is enhanced in cluttered conditions.

    Directory of Open Access Journals (Sweden)

    Warrick Roseboom

    Full Text Available Events encoded in separate sensory modalities, such as audition and vision, can seem to be synchronous across a relatively broad range of physical timing differences. This may suggest that the precision of audio-visual timing judgments is inherently poor. Here we show that this is not necessarily true. We contrast timing sensitivity for isolated streams of audio and visual speech, and for streams of audio and visual speech accompanied by additional, temporally offset, visual speech streams. We find that the precision with which synchronous streams of audio and visual speech are identified is enhanced by the presence of additional streams of asynchronous visual speech. Our data suggest that timing perception is shaped by selective grouping processes, which can result in enhanced precision in temporally cluttered environments. The imprecision suggested by previous studies might therefore be a consequence of examining isolated pairs of audio and visual events. We argue that when an isolated pair of cross-modal events is presented, they tend to group perceptually and to seem synchronous as a consequence. We have revealed greater precision by providing multiple visual signals, possibly allowing a single auditory speech stream to group selectively with the most synchronous visual candidate. The grouping processes we have identified might be important in daily life, such as when we attempt to follow a conversation in a crowded room.

  13. Hearing (Rivaling Lips and Seeing Voices: How Audiovisual Interactions Modulate Perceptual Stabilization in Binocular Rivalry

    Directory of Open Access Journals (Sweden)

    Manuel eVidal

    2014-09-01

    Full Text Available In binocular rivalry (BR, sensory input remains the same yet subjective experience fluctuates irremediably between two mutually exclusive representations. We investigated the perceptual stabilization effect of an additional sound on the BR dynamics using speech stimuli known to involve robust audiovisual (AV interactions at several cortical levels. Subjects sensitive to the McGurk effect were presented looping videos of rivaling faces uttering /aba/ and /aga/ respectively, while synchronously hearing the voice /aba/. They reported continuously the dominant percept, either observing passively or trying actively to promote one of the faces. The few studies that investigated the influence of information from an external modality on perceptual competition reported results that seem at first sight inconsistent. Since these differences could stem from how well the modalities matched, we addressed this by comparing two levels of AV congruence: real (/aba/ viseme vs. illusory (/aga/ viseme producing the /ada/ McGurk fusion. First, adding the voice /aba/ stabilized both real and illusory congruent lips percept. Second, real congruence of the added voice improved volitional control whereas illusory congruence did not, suggesting a graded contribution to the top-down sensitivity control of selective attention. In conclusion, a congruent sound enhanced considerably attentional control over the perceptual outcome selection; however, differences between passive stabilization and active control according to AV congruency suggest these are governed by two distinct mechanisms. Based on existing theoretical models of BR, selective attention and AV interaction in speech perception, we provide a general interpretation of our findings.

  14. AUDIO-VISUAL SYNKRETISM IN THE HISTORY OF ART AND EDUCATION

    Directory of Open Access Journals (Sweden)

    N. N. Telysheva

    2015-03-01

    Full Text Available The paper looks at the problems facing the art teachers and resulted, in the author’s opinion, from separation of the content and functional side of the subject. The other problem is the lack of insight regarding social behavior, forms of consciousness and perception (including the spatial and temporal ones underlying all sorts and forms of art. The paper demonstrates the interrelations between the history of arts and education history considered in terms of development and fixation of various forms of social consciousness. The audiovisual syncretism is regarded as the nature of perception and world reflection at specific historical stages of human knowledge and creativity development. Both the history of arts and education include the content and procedure related aspects. The whole history of pedagogy involves the procedure improvements (methods, means, forms, etc. along the way «from integration to differentiation, and backwards»; and on the other side, it incorporates the invariable educational content. Likewise, throughout the history of arts we can trace the procedural aspect developments and the existence of the “eternal” content related to personality upbringing.

  15. Electrocortical Dynamics in Children with a Language-Learning Impairment Before and After Audiovisual Training.

    Science.gov (United States)

    Heim, Sabine; Choudhury, Naseem; Benasich, April A

    2016-05-01

    Detecting and discriminating subtle and rapid sound changes in the speech environment is a fundamental prerequisite of language processing, and deficits in this ability have frequently been observed in individuals with language-learning impairments (LLI). One approach to studying associations between dysfunctional auditory dynamics and LLI, is to implement a training protocol tapping into this potential while quantifying pre- and post-intervention status. Event-related potentials (ERPs) are highly sensitive to the brain correlates of these dynamic changes and are therefore ideally suited for examining hypotheses regarding dysfunctional auditory processes. In this study, ERP measurements to rapid tone sequences (standard and deviant tone pairs) along with behavioral language testing were performed in 6- to 9-year-old LLI children (n = 21) before and after audiovisual training. A non-treatment group of children with typical language development (n = 12) was also assessed twice at a comparable time interval. The results indicated that the LLI group exhibited considerable gains on standardized measures of language. In terms of ERPs, we found evidence of changes in the LLI group specifically at the level of the P2 component, later than 250 ms after the onset of the second stimulus in the deviant tone pair. These changes suggested enhanced discrimination of deviant from standard tone sequences in widespread cortices, in LLI children after training. PMID:26671710

  16. Use of audiovisual resources in a FlexQuest strategy on Radioactivity

    Directory of Open Access Journals (Sweden)

    Flávia Cristina Gomes Catunda de Vasconcelos

    2012-03-01

    Full Text Available This paper presents a study conducted in a private school in Recife - PE, Brazil, with 25 students from 1st year of high school. One of the focuses was to evaluate the implementation of the strategy FlexQuest on the teaching of radioactivity. The FlexQuest incorporates, within the WebQuest, the Cognitive Flexibility Theory (TFC, which is a theory of teaching, learning and knowledge representation, aiming to propose strategies for the acquisition of advanced levels of knowledge. With a qualitative approach, there were interventions of application having, as axle, an analysis of landscape crossings that the students have accomplished during the execution of required tasks. The results revealed that this strategy involves audiovisual resources, and these make learning possible, provided that strategies are embedded in a constructivist approach to teaching and learning. In this sense, it was perceived to be effective, the introductory level/stimulator, for the understanding of the applications of radioactivity. Showing a tool based on real situations, enabling students to develop the critical eye on what it is televised, including also the study of radioactivity.

  17. PROPIEDADES PSICOMÉTRICAS DE INSTRUMENTOS UTILIZADOS PARA EVALUAR MATERIAL EDUCATIVO EN SALUD PROPIEDADES PSICOMETRICAS DE INSTRUMENTOS UTILIZADOS PARA AVALIAR MATERIAL EDUCATIVO EM SAÚDE PSYCHOMETRIC PROPERTIES OF INSTRUMENTS USED TO EVALUATE HEALTH EDUCATIONAL MATERIAL

    OpenAIRE

    Lina F Barrera Sánchez; Fred G Manrique Abril; Juan Manuel Ospina Díaz

    2011-01-01

    Objetivo: determinar propiedades psicométricas de los instrumentos desarrollados por la OPS para evaluar la calidad y la efectividad potencial de material educativo. Materiales y métodos: se utilizaron instrumentos diseñados por la OPS para evaluar la calidad de material educativo en salud, diseñado durante el primer semestre del 2010. La evaluación fue realizada por grupos de usuarios del material, así: para material audiovisual, n = 74; material impreso, n = 116; material sonoro, n = 37; ma...

  18. Report of the Westside Workshop on Teacher Training and Curriculum Adaptation in the Inner City; An Institute to Help Teachers Develop and Adapt Instructional Materials..., February, 1966 - February, 1967.

    Science.gov (United States)

    Levine, Daniel U.; And Others

    The purposes of this project were (1) to help teachers prepare "consumable" instructional materials appropriate for students in a desegregated elementary school and a desegregated junior high school in a low-income neighborhood, (2) to encourage the teachers to use these materials and duplicating and audiovisual equipment placed in their schools,…

  19. Lousa Digital Interativa: avaliação da interação didática e proposta de aplicação de narrativa audiovisual / Interactive White Board – IWB: assessment in interaction didactic and audiovisual narrative proposal

    Directory of Open Access Journals (Sweden)

    Francisco García García

    2011-04-01

    Full Text Available O uso de audiovisual em sala de aula não garante uma eficácia na aprendizagem, mas para os estudantes é um elemento interessante e ainda atrativo. Este trabalho — uma aproximação de duas pesquisas: a primeira apresenta a importância da interação didática com a LDI e a segunda, uma lista de elementos de narrativa audiovisual que podem ser aplicados em sala de aula — propõe o domínio de elementos da narrativa audiovisual como uma possibilidade teórica para o professor que quer produzir um conteúdo audiovisual para aplicar em plataformas digitais, como é o caso da Lousa Digital Interativa - LDI. O texto está divido em três partes: a primeira apresenta os conceitos teóricos das duas pesquisas, a segunda discute os resultados de ambas e, por fim, a terceira parte propõe uma prática pedagógica de interação didática com elementos de narrativa audiovisual para uso em LDI. AbstractThe audiovisual use in classroom does not guarantee effectiveness in learning, but for students is an interesting element and still attractive. This work suggests that the field of audiovisual elements of the narrative is a theoretical possibility for the teacher who wants to produce an audiovisual content to apply to digital platforms, such as the Interactive Digital Whiteboard - LDI. This work is an approximation of two doctoral theses, the first that shows the importance of interaction with the didactic and the second LDI provides a list of audiovisual narrative elements that can be applied in the classroom. This work is divided into three parts, the first part presents the theoretical concepts of the two surveys, the second part discusses the results of two surveys and finally the third part, proposes a practical pedagogical didactic interaction with audiovisual narrative elements to use in LDI.

  20. Funcions del documentalista en un mitjà de comunicació audiovisual digital. Estudi de cas: RelTV

    Directory of Open Access Journals (Sweden)

    Rubio, Albert

    2014-12-01

    Full Text Available Es mostra un estudi de cas sobre la intervenció d'un documentalista en un nou mitjà de comunicació audiovisual a Internet, RelTV. Es presenten tres projectes diferents duts a terme pel documentalista en aquest context: una base de dades relacional, un pla de preservació digital i un exemple de producte periodístic-documental: un mapa interactiu de vídeos. Es presenta el disseny i desenvolupament dels tres productes, se n'analitza la repercussió i viabilitat, i es reflexiona sobre l'aportació del professional de la documentació en aquest àmbit.Se muestra un estudio de caso sobre la intervención de un documentalista en un nuevo medio de comunicación audiovisual en Internet, RelTV. Se presentan tres proyectos diferentes llevados a cabo por el documentalista en este contexto: una base de datos relacional, un plan de preservación digital y un ejemplo de producto periodístico-documental: un mapa interactivo de vídeos. Se presenta el diseño y desarrollo de los tres productos, se analiza su repercusión y viabilidad, y se reflexiona sobre la aportación del profesional de la documentación en este ámbito.This paper reports on three projects completed by a documentalist for the new audiovisual platform RelTV: a relational database, a digital preservation plan and an example of a journalistic-documental product in the form of an interactive map of videos. The paper reports on how the three projects were designed and developed and then analyzes the implications and viability of such initiatives, reflecting on the professional contribution that documentalists can make in this field.

  1. Development and preliminary evaluation of a prototype audiovisual biofeedback device incorporating a patient-specific guiding waveform

    International Nuclear Information System (INIS)

    The aim of this research was to investigate the effectiveness of a novel audio-visual biofeedback respiratory training tool to reduce respiratory irregularity. The audiovisual biofeedback system acquires sample respiratory waveforms of a particular patient and computes a patient-specific waveform to guide the patient's subsequent breathing. Two visual feedback models with different displays and cognitive loads were investigated: a bar model and a wave model. The audio instructions were ascending/descending musical tones played at inhale and exhale respectively to assist in maintaining the breathing period. Free-breathing, bar model and wave model training was performed on ten volunteers for 5 min for three repeat sessions. A total of 90 respiratory waveforms were acquired. It was found that the bar model was superior to free breathing with overall rms displacement variations of 0.10 and 0.16 cm, respectively, and rms period variations of 0.77 and 0.33 s, respectively. The wave model was superior to the bar model and free breathing for all volunteers, with an overall rms displacement of 0.08 cm and rms periods of 0.2 s. The reduction in the displacement and period variations for the bar model compared with free breathing was statistically significant (p = 0.005 and 0.002, respectively); the wave model was significantly better than the bar model (p = 0.006 and 0.005, respectively). Audiovisual biofeedback with a patient-specific guiding waveform significantly reduces variations in breathing. The wave model approach reduces cycle-to-cycle variations in displacement by greater than 50% and variations in period by over 70% compared with free breathing. The planned application of this device is anatomic and functional imaging procedures and radiation therapy delivery. (note)

  2. NOTE: Development and preliminary evaluation of a prototype audiovisual biofeedback device incorporating a patient-specific guiding waveform

    Science.gov (United States)

    Venkat, Raghu B.; Sawant, Amit; Suh, Yelin; George, Rohini; Keall, Paul J.

    2008-06-01

    The aim of this research was to investigate the effectiveness of a novel audio-visual biofeedback respiratory training tool to reduce respiratory irregularity. The audiovisual biofeedback system acquires sample respiratory waveforms of a particular patient and computes a patient-specific waveform to guide the patient's subsequent breathing. Two visual feedback models with different displays and cognitive loads were investigated: a bar model and a wave model. The audio instructions were ascending/descending musical tones played at inhale and exhale respectively to assist in maintaining the breathing period. Free-breathing, bar model and wave model training was performed on ten volunteers for 5 min for three repeat sessions. A total of 90 respiratory waveforms were acquired. It was found that the bar model was superior to free breathing with overall rms displacement variations of 0.10 and 0.16 cm, respectively, and rms period variations of 0.77 and 0.33 s, respectively. The wave model was superior to the bar model and free breathing for all volunteers, with an overall rms displacement of 0.08 cm and rms periods of 0.2 s. The reduction in the displacement and period variations for the bar model compared with free breathing was statistically significant (p = 0.005 and 0.002, respectively); the wave model was significantly better than the bar model (p = 0.006 and 0.005, respectively). Audiovisual biofeedback with a patient-specific guiding waveform significantly reduces variations in breathing. The wave model approach reduces cycle-to-cycle variations in displacement by greater than 50% and variations in period by over 70% compared with free breathing. The planned application of this device is anatomic and functional imaging procedures and radiation therapy delivery.

  3. Creativity and audiovisual production online: the case of the Andalusian serial “Niña Repelente”

    Directory of Open Access Journals (Sweden)

    Carmen SILVA ROBLES

    2014-10-01

    Full Text Available The Web 2.0 has done that young designers can generate and disseminate audiovisual content through social media, without having to go through the usual channels of distribution, until now essential. By the P.C. or the P.D.A. receptors await eager to consume video, an activity that increasingly spend more hours... with a fundamental difference: we have to watch the TV for online audiovisual consume more in other systems and transmitters. With this background, in Andalusia we live the birth of series, considered and of worship, which have shown the potential of our young artists. However, the periodical of chapters is a financial investment that most of them can not afford. Meanwhile, media agencies are faced with the phenomenon of online advertising. The executives are before expectants receivers and content experiences: these are the keys to advertising 2.0. And from here, the pieces begin to function: some have the ideas, content, others funding. That is the Movistar case, the leader telephony company in Spain, and “Niña Repelente”, an online serie that has had the greatest impact in recent years. The sponsorship agreement signed in 2010 has led to the dissemination of the series in Myspace, the social network of more use among native Spanish youth. The case in question gives rise to this paper that analyzes the keys to these changes in different phases of audiovisual production (creation, distribution, consumption while studying the critical variables and open questions for the world communication from the latest trends in Web applications.

  4. Protección de la infancia en la nueva regulación audiovisual en España

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    José-A. Ruiz-San-Román

    2011-01-01

    Full Text Available El 1 de mayo de 2010 entró en vigor la Ley General de la Comunicación Audiovisual (LGCA, por la que se traslada al ordenamiento español la directiva europea de Servicios de Comunicación Audiovisual de 2007 (AVMSD. La investigación desarrollada analiza la evolución de las normas contenidas en la LGCA sobre protección de la infancia, durante la tramitación legislativa de la citada ley. El análisis se centra en el “iter” legislativo del apartado segundo del artículo 7, relativo a contenidos sujetos a restricciones de difusión. Se han revisado, para ello, todas las versiones del texto en sus diferentes fases de tramitación así como los diarios de sesiones de los debates parlamentarios correspondientes a momentos puntuales del proceso y las enmiendas planteadas por los diferentes grupos parlamentarios en cada una de las dos cámaras legislativas. Se han tenido también en cuenta las observaciones presentadas por organizaciones de usuarios y otros agentes sociales, y se ha cotejado cada fase con las disposiciones contenidas en la AVMSD. Todo ello con el objetivo final de comprobar en qué medida la nueva regulación audiovisual responde a las exigencias de la legislación europea en relación con la protección de los menores y al compromiso explícito del Gobierno español de ir más allá de dichas exigencias.

  5. Development and preliminary evaluation of a prototype audiovisual biofeedback device incorporating a patient-specific guiding waveform

    Energy Technology Data Exchange (ETDEWEB)

    Venkat, Raghu B; Sawant, Amit; Suh, Yelin; Keall, Paul J [Department of Radiation Oncology, Stanford University, Stanford, CA 94305-5847 (United States); George, Rohini [Department of Radiation Oncology, Virginia Commonwealth University, Richmond, VA (United States)], E-mail: Paul.Keall@stanford.edu

    2008-06-07

    The aim of this research was to investigate the effectiveness of a novel audio-visual biofeedback respiratory training tool to reduce respiratory irregularity. The audiovisual biofeedback system acquires sample respiratory waveforms of a particular patient and computes a patient-specific waveform to guide the patient's subsequent breathing. Two visual feedback models with different displays and cognitive loads were investigated: a bar model and a wave model. The audio instructions were ascending/descending musical tones played at inhale and exhale respectively to assist in maintaining the breathing period. Free-breathing, bar model and wave model training was performed on ten volunteers for 5 min for three repeat sessions. A total of 90 respiratory waveforms were acquired. It was found that the bar model was superior to free breathing with overall rms displacement variations of 0.10 and 0.16 cm, respectively, and rms period variations of 0.77 and 0.33 s, respectively. The wave model was superior to the bar model and free breathing for all volunteers, with an overall rms displacement of 0.08 cm and rms periods of 0.2 s. The reduction in the displacement and period variations for the bar model compared with free breathing was statistically significant (p = 0.005 and 0.002, respectively); the wave model was significantly better than the bar model (p = 0.006 and 0.005, respectively). Audiovisual biofeedback with a patient-specific guiding waveform significantly reduces variations in breathing. The wave model approach reduces cycle-to-cycle variations in displacement by greater than 50% and variations in period by over 70% compared with free breathing. The planned application of this device is anatomic and functional imaging procedures and radiation therapy delivery. (note)

  6. Sustainable models of audiovisual commons Modelos emergentes de sostenibilidad de procomunes audiovisuales

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    Mayo Fuster Morell

    2013-03-01

    Full Text Available This paper addresses an emerging phenomenon characterized by continuous change and experimentation: the collaborative commons creation of audiovisual content online. The analysis wants to focus on models of sustainability of collaborative online creation, paying particular attention to the use of different forms of advertising. This article is an excerpt of a larger investigation, which unit of analysis are cases of Online Creation Communities that take as their central node of activity the Catalan territory. From 22 selected cases, the methodology combines quantitative analysis, through a questionnaire delivered to all cases, and qualitative analysis through face interviews conducted in 8 cases studied. The research, which conclusions we summarize in this article,in this article, leads us to conclude that the sustainability of the project depends largely on relationships of trust and interdependence between different voluntary agents, the non-monetary contributions and retributions as well as resources and infrastructure of free use. All together leads us to understand that this is and will be a very important area for the future of audiovisual content and its sustainability, which will imply changes in the policies that govern them.Este articulo afronta un fenómeno emergente caracterizado por el continuo cambio y experimentación: la creación colaborativa y procomún de contenidos audiovisuales online. El análisis se centra en extraer cuales son los modelos de sostenibilidad de la creación colaborativa online. La unidad de análisis son casos de Comunidades de Creación Online (CCOs, esto es, comunidades de individuos que colaboran en el ámbito digital para la construcción de recursos audiovisuales. El presente articulo es un extracto de una investigación mayor, centrada en el análisis de casos que toman como nodo o sede central de su actividad el territorio catalán. A partir de 22 casos seleccionados, la metodología de la

  7. Formación de público infantil en lo audiovisual a partir de la noticia televisiva

    OpenAIRE

    Cañaveral del Río, Natalia

    2011-01-01

    La presente investigación: “Formación de público infantil en lo audiovisual a partir de la noticia televisiva”, muestra la importancia de instaurar procesos educomunicativos que entren en diálogo con los contenidos presentados en la escuela, puesto que al instaurar los elementos audiovisuales y el lenguaje de la imagen como herramienta de trabajo dentro de la pedagogía cotidiana, se incentiva el conocimiento, permite el aprendizaje de saberes diferentes a los tradicionales y logra relac...

  8. Educación y certificación de competencias laborales en el área audiovisual

    OpenAIRE

    Udo Jacobsen

    2007-01-01

    En el Congreso Nacional de Chile se encuentra en trámite una ley sobre certificación de competencias laborales, que permitiría obtener un tipo de reconocimiento no necesariamente dependiente de la educación formal. Este artículo discute las implicaciones de tal sistema de acreditación con relación a la oferta educacional en el área audiovisual. Propone, en general, algunas ideas que debieran servir de base para una discusión mayor sobre el rol de las instituciones de educación superior en el ...

  9. Competencias digitales para los nuevos entornos dentro de los estudios de grado en Comunicación Audiovisual

    OpenAIRE

    Noguera, José Manuel; Grandío, María del Mar; Torrado, Susana

    2011-01-01

    Este artículo tiene como objetivo principal exponer los retos docentes que deben afrontarse tras la implantación del Plan Bolonia, concretamente a partir del eje transversal que plantea Internet como herramienta en el proceso enseñanza-aprendizaje en el Grado en Comunicación Audiovisual. Para promover la reflexión, se expondrán las experiencias docentes de las Facultades de Comunicación y Documentación de la UCAM y la Universidad de Murcia.

  10. Traducción audiovisual para la televisión en Polonia: versión locutada Entrevista con Barbara Rodkiewicz-Gronowska (TVP)

    OpenAIRE

    Kotelecka, Justina K.

    2006-01-01

    A pesar de ser prácticamente desconocida en España y Europa Occidental, la versión locutada es una modalidad de traducción audiovisual que predomina en la televisión de Polonia frente a otras como el doblaje, el subtitulado y el comentario. En este entrevista con B. Rodkiewicz-Gronowska, traductora profesional de guiones cinematográficos y televisivos, pretendemos presentar sucintamente este modalidad de traducción audiovisual desde un enfoque profesional e histórico así como dar a conocer su...

  11. Audiovisual en línea en la universidad española: bibliotecas y servicios especializados (una panorámica)

    OpenAIRE

    Alfonso López Yepes

    2014-01-01

    Situación que presenta la información audiovisual en línea en el ámbito de las bibliotecas y servicios audiovisuales universitarios españoles, con ejemplos de aplicaciones y desarrollos concretos. Se destaca la presencia del audiovisual fundamentalmente en blogs, canales IPTV, portales bibliotecarios propios y en actuaciones concretas como “La Universidad Responde”, a cargo de los servicios audiovisuales de las universidades españolas, que supone sin duda un marco de referencia y de difusión ...

  12. Conceptualización y diseño de una aplicación de creación audiovisual

    OpenAIRE

    Guerrero García, Sergio

    2015-01-01

    En este proyecto fin de carrera se expondrá todo el proceso necesario a seguir para desarrollar y diseñar una aplicación de creación audiovisual. Para ello, tras una introducción al mundo de las aplicaciones, se analizará tanto el mercado de aplicaciones de creación audiovisual más populares, como el mercado de dispositivos más vendidos, y se especificará la aplicación, pasando por la fase de conceptualización y diseño de la misma.

  13. El Impacto del Tratado de Libre Comercio de América del Norte (TLCAN) en la industria audiovisual mexicana (1994-2002)

    OpenAIRE

    Gómez García, Rodrigo

    2007-01-01

    This Thesis analises the diferent impacts of NAFTA on the Mexican audiovisual industry. The approach focuses first in structures and dinamics of the world-sistem and "world-economy" (econom'a-mundo) manly in the role of the transnational cultural industries in the contexts of the global capitalism; second, the work goes to the negociations and logics tha set NAFTA, at the same time the Thesis go deeper in the items related to the audiovisual industries; third, on general State policies and ...

  14. Producción de contenido multimedia en el aula. Una propuesta docente para alumnos de Periodismo y Comunicación Audiovisual

    OpenAIRE

    Herrero Curiel, Eva; Limón Serrano, Nieves

    2014-01-01

    Durante el curso académico 2012/2013 se llevaron a cabo en el grado de Periodismo y Comunicación Audiovisual dos actividades docentes, de forma independiente, en dos grupos prácticos. Ambas experiencias (A y B) utilizaron, como parte de sus programas, herramientas para la creación de contenidos multimedia. En la experiencia A se utilizaron diferentes dispositivos de grabación y software de edición y postproducción audiovisual con la intención de que los alumnos produjeran pequeñas piezas audi...

  15. Potencialidades y problemáticas del audiovisual educativo-histórico actual : El caso de Avanti. Vida y obra de Almafuerte (2012)

    OpenAIRE

    Alessandro, Nicolás

    2014-01-01

    La realización del audiovisual educativo Avanti. Vida y obra de Almafuerte (Alessandro y Tabarrozzi, 2012, INCAA), gestado en el marco de las acciones culturales por el Bicentenario argentino, representó una praxis reflexiva para sus realizadores, cuya particularidad era ser también docentes e investigadores universitarios de cine y sostener un interés previo por la relación entre pedagogía e imagen. El audiovisual Avanti… propone una metáfora concreta (la figura de Almafuerte) del relato de ...

  16. La confesión en la práctica artística audiovisual: modalidades, estrategias discursivas y expresiones del yo confesional

    OpenAIRE

    Cerezuela Zaplana, Juan Antonio

    2015-01-01

    La presente tesis investiga sobre la confesión dentro de la práctica artística audiovisual, revisando algunas de sus principales estrategias discursivas y aportaciones al lenguaje artístico. Si bien se han realizado importantísimas aportaciones en torno a la presencia de la autobiografía o del autorretrato en la práctica artística audiovisual, no ha existido una teoría equiparable sobre la confesión dentro de esta práctica. En nuestra tesis nos preguntamos en qué medida podemos...

  17. The use of audiovisual techniques in participative diagnosis: the experience of the Polvo Fields; O uso do audiovisual no diagnostico participativo: a experiencia do projeto de educacao ambiental no Campo de Polvo

    Energy Technology Data Exchange (ETDEWEB)

    Loureiro, Juliana; Pitanga, Luisa [Abaete Estudos Socioambientais Ltda., Rio de Janeiro, RJ (Brazil); Borensztein, Fernando [Devon Energy do Brasil Ltda., Rio de Janeiro, RJ (Brazil)

    2008-07-01

    The Brazilian environmental law requires oil companies' commitment to implement environmental programs, among which the environmental education project. This type of project should be understood by the companies as an opportunity for the development of socio environmental responsibility policies towards the affected populations. In order for the environmental education project to be effective as a means of awareness and social transformation, it is required to increase public's participation from the process of knowledge creation on the communities environmental problems to the disclose of the produced contents. This work refers to the use of the audiovisual as an instrument for the mobilization and consciousness for the construction of participative diagnostics, from the experience of the Environmental Education Project of the Polvo field, accomplished in ten municipal districts of the Campos Basin region. Inspired on an original methodology, the project promoted environmental cinema workshops that resulted in 30 documentaries directed by the local population and 10 environmental forums in which were developed local audiovisual environmental agendas. (author)

  18. Eidos em movimento: da ação à criação do audiovisual Eidos in movement: from the reception to the creation of the audiovisual

    Directory of Open Access Journals (Sweden)

    Regina Rossetti

    2008-11-01

    Full Text Available A partir da célebre imagem bergsoniana do mecanismo cinematográfico da inteligência e da percepção, adentra-se ao mundo das idéias de Platão em busca da distinção entre o contínuo movimento do real e o eidos como representação estável da instabilidade das coisas. Os conceitos de eidos e movimento serão, então, empregados para analisar a concepção, a produção e a recepção de um produto audiovisual. A necessidade de estabilização do movimento real das coisas e dos acontecimentos é presente em vários momentos do processo audiovisual: no roteiro, que usa palavras de uma linguagem que solidifica a fluidez advinda da criação; no storyboard, que representa gráfica e estaticamente as ações mais importantes; no enquadramento das imagens, que separa do fluxo contínuo da realidade, os momentos privilegiados; no fotograma ou nos quadros videográficos, que são imagens imóveis do movimento real; na percepção do espectador, que capta os instantes da realidade para depois alinhá-los; na memória, que seleciona e separa os momentos mais marcantes do que foi percebido; e, finalmente, nos comentários do espectador, que fragmenta e narra as imagens mentais retidas. Eidos in movement: from the reception to the creation of the audiovisual — Starting from Bergson's well-known image of the cinematographic mechanism of intelligence and perception, we enter the world of Plato's ideas in search of the distinction between the continuous movement of the real and of eidos as a stable representation of the instability of things. The concepts of eidos and of movement are then used to analyze the conception, production and reception of an audiovisual product. The need for stabilizing the real movement of things and of events is present at various moments in the audiovisual process, namely: in the script, which uses words of a language that solidifies the fluidity of the creation; in the storyboard, which represents the most important

  19. Claves para reconocer los niveles de lectura crítica audiovisual en el niño Keys to Recognizing the Levels of Critical Audiovisual Reading in Children

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    Jacqueline Sánchez Carrero

    2012-03-01

    Full Text Available Diversos estudios con niños y adolescentes han demostrado que a mayor conocimiento del mundo de la producción y transmisión de mensajes audiovisuales, mayor capacidad adquieren para formarse un criterio propio ante la pantalla. En este artículo se aúnan tres experiencias de educación mediática realizadas en Venezuela, Colombia y España, desde el enfoque de la recepción crítica. Se proporcionan los indicadores que llevan a determinar los niveles de lectura crítica audiovisual en niños de entre 8 y 12 años, construidos a partir de procesos de intervención mediante talleres de alfabetización mediática. Los grupos han sido instruidos acerca del universo audiovisual, dándoles a conocer cómo se gestan los contenidos audiovisuales y el modo de analizarlos, desestructurarlos y recrearlos. Primero, se hace referencia al concepto en evolución de educación mediática. Después, se describen las experiencias comunes en los tres países para luego incidir en los indicadores que permiten medir el nivel de lectura crítica. Por último, se reflexiona sobre la necesidad de la educación mediática en la era de la multialfabetización. No es muy frecuente encontrar estudios que revelen las claves para reconocer qué grado de criticidad tiene un niño cuando visiona los contenidos de los distintos medios digitales. Es un tema fundamental pues permite saber con qué nivel de comprensión cuenta y cuál adquiere después de un proceso de formación en educación mediática.Based on the results of several projects carried out with children and adolescents, we can state that knowledge of production and broadcasting aids the acquisition of critical media skills. This article combines three media education experiences in Venezuela, Colombia and Spain driven by a critical reception approach. It presents leading indicators for determining the level of critical audiovisual reading in children aged 8-12 extracted from intervention processes through

  20. Audio-visual perception of 3D cinematography: an fMRI study using condition-based and computation-based analyses.

    Science.gov (United States)

    Ogawa, Akitoshi; Bordier, Cecile; Macaluso, Emiliano

    2013-01-01

    The use of naturalistic stimuli to probe sensory functions in the human brain is gaining increasing interest. Previous imaging studies examined brain activity associated with the processing of cinematographic material using both standard "condition-based" designs, as well as "computational" methods based on the extraction of time-varying features of the stimuli (e.g. motion). Here, we exploited both approaches to investigate the neural correlates of complex visual and auditory spatial signals in cinematography. In the first experiment, the participants watched a piece of a commercial movie presented in four blocked conditions: 3D vision with surround sounds (3D-Surround), 3D with monaural sound (3D-Mono), 2D-Surround, and 2D-Mono. In the second experiment, they watched two different segments of the movie both presented continuously in 3D-Surround. The blocked presentation served for standard condition-based analyses, while all datasets were submitted to computation-based analyses. The latter assessed where activity co-varied with visual disparity signals and the complexity of auditory multi-sources signals. The blocked analyses associated 3D viewing with the activation of the dorsal and lateral occipital cortex and superior parietal lobule, while the surround sounds activated the superior and middle temporal gyri (S/MTG). The computation-based analyses revealed the effects of absolute disparity in dorsal occipital and posterior parietal cortices and of disparity gradients in the posterior middle temporal gyrus plus the inferior frontal gyrus. The complexity of the surround sounds was associated with activity in specific sub-regions of S/MTG, even after accounting for changes of sound intensity. These results demonstrate that the processing of naturalistic audio-visual signals entails an extensive set of visual and auditory areas, and that computation-based analyses can track the contribution of complex spatial aspects characterizing such life-like stimuli. PMID

  1. Audio-visual perception of 3D cinematography: an fMRI study using condition-based and computation-based analyses.

    Directory of Open Access Journals (Sweden)

    Akitoshi Ogawa

    Full Text Available The use of naturalistic stimuli to probe sensory functions in the human brain is gaining increasing interest. Previous imaging studies examined brain activity associated with the processing of cinematographic material using both standard "condition-based" designs, as well as "computational" methods based on the extraction of time-varying features of the stimuli (e.g. motion. Here, we exploited both approaches to investigate the neural correlates of complex visual and auditory spatial signals in cinematography. In the first experiment, the participants watched a piece of a commercial movie presented in four blocked conditions: 3D vision with surround sounds (3D-Surround, 3D with monaural sound (3D-Mono, 2D-Surround, and 2D-Mono. In the second experiment, they watched two different segments of the movie both presented continuously in 3D-Surround. The blocked presentation served for standard condition-based analyses, while all datasets were submitted to computation-based analyses. The latter assessed where activity co-varied with visual disparity signals and the complexity of auditory multi-sources signals. The blocked analyses associated 3D viewing with the activation of the dorsal and lateral occipital cortex and superior parietal lobule, while the surround sounds activated the superior and middle temporal gyri (S/MTG. The computation-based analyses revealed the effects of absolute disparity in dorsal occipital and posterior parietal cortices and of disparity gradients in the posterior middle temporal gyrus plus the inferior frontal gyrus. The complexity of the surround sounds was associated with activity in specific sub-regions of S/MTG, even after accounting for changes of sound intensity. These results demonstrate that the processing of naturalistic audio-visual signals entails an extensive set of visual and auditory areas, and that computation-based analyses can track the contribution of complex spatial aspects characterizing such life

  2. Dissociating Cortical Activity during Processing of Native and Non-Native Audiovisual Speech from Early to Late Infancy.

    Science.gov (United States)

    Fava, Eswen; Hull, Rachel; Bortfeld, Heather

    2014-01-01

    Initially, infants are capable of discriminating phonetic contrasts across the world's languages. Starting between seven and ten months of age, they gradually lose this ability through a process of perceptual narrowing. Although traditionally investigated with isolated speech sounds, such narrowing occurs in a variety of perceptual domains (e.g., faces, visual speech). Thus far, tracking the developmental trajectory of this tuning process has been focused primarily on auditory speech alone, and generally using isolated sounds. But infants learn from speech produced by people talking to them, meaning they learn from a complex audiovisual signal. Here, we use near-infrared spectroscopy to measure blood concentration changes in the bilateral temporal cortices of infants in three different age groups: 3-to-6 months, 7-to-10 months, and 11-to-14-months. Critically, all three groups of infants were tested with continuous audiovisual speech in both their native and another, unfamiliar language. We found that at each age range, infants showed different patterns of cortical activity in response to the native and non-native stimuli. Infants in the youngest group showed bilateral cortical activity that was greater overall in response to non-native relative to native speech; the oldest group showed left lateralized activity in response to native relative to non-native speech. These results highlight perceptual tuning as a dynamic process that happens across modalities and at different levels of stimulus complexity. PMID:25116572

  3. Dissociating Cortical Activity during Processing of Native and Non-Native Audiovisual Speech from Early to Late Infancy

    Directory of Open Access Journals (Sweden)

    Eswen Fava

    2014-08-01

    Full Text Available Initially, infants are capable of discriminating phonetic contrasts across the world’s languages. Starting between seven and ten months of age, they gradually lose this ability through a process of perceptual narrowing. Although traditionally investigated with isolated speech sounds, such narrowing occurs in a variety of perceptual domains (e.g., faces, visual speech. Thus far, tracking the developmental trajectory of this tuning process has been focused primarily on auditory speech alone, and generally using isolated sounds. But infants learn from speech produced by people talking to them, meaning they learn from a complex audiovisual signal. Here, we use near-infrared spectroscopy to measure blood concentration changes in the bilateral temporal cortices of infants in three different age groups: 3-to-6 months, 7-to-10 months, and 11-to-14-months. Critically, all three groups of infants were tested with continuous audiovisual speech in both their native and another, unfamiliar language. We found that at each age range, infants showed different patterns of cortical activity in response to the native and non-native stimuli. Infants in the youngest group showed bilateral cortical activity that was greater overall in response to non-native relative to native speech; the oldest group showed left lateralized activity in response to native relative to non-native speech. These results highlight perceptual tuning as a dynamic process that happens across modalities and at different levels of stimulus complexity.

  4. Audio-Visual and Autogenic Relaxation Alter Amplitude of Alpha EEG Band, Causing Improvements in Mental Work Performance in Athletes.

    Science.gov (United States)

    Mikicin, Mirosław; Kowalczyk, Marek

    2015-09-01

    The aim of the present study was to investigate the effect of regular audio-visual relaxation combined with Schultz's autogenic training on: (1) the results of behavioral tests that evaluate work performance during burdensome cognitive tasks (Kraepelin test), (2) changes in classical EEG alpha frequency band, neocortex (frontal, temporal, occipital, parietal), hemisphere (left, right) versus condition (only relaxation 7-12 Hz). Both experimental (EG) and age-and skill-matched control group (CG) consisted of eighteen athletes (ten males and eight females). After 7-month training EG demonstrated changes in the amplitude of mean electrical activity of the EEG alpha bend at rest and an improvement was significantly changing and an improvement in almost all components of Kraepelin test. The same examined variables in CG were unchanged following the period without the intervention. Summing up, combining audio-visual relaxation with autogenic training significantly improves athlete's ability to perform a prolonged mental effort. These changes are accompanied by greater amplitude of waves in alpha band in the state of relax. The results suggest usefulness of relaxation techniques during performance of mentally difficult sports tasks (sports based on speed and stamina, sports games, combat sports) and during relax of athletes. PMID:26016588

  5. Effects of virtual speaker density and room reverberation on spatiotemporal thresholds of audio-visual motion coherence.

    Directory of Open Access Journals (Sweden)

    Narayan Sankaran

    Full Text Available The present study examined the effects of spatial sound-source density and reverberation on the spatiotemporal window for audio-visual motion coherence. Three different acoustic stimuli were generated in Virtual Auditory Space: two acoustically "dry" stimuli via the measurement of anechoic head-related impulse responses recorded at either 1° or 5° spatial intervals (Experiment 1, and a reverberant stimulus rendered from binaural room impulse responses recorded at 5° intervals in situ in order to capture reverberant acoustics in addition to head-related cues (Experiment 2. A moving visual stimulus with invariant localization cues was generated by sequentially activating LED's along the same radial path as the virtual auditory motion. Stimuli were presented at 25°/s, 50°/s and 100°/s with a random spatial offset between audition and vision. In a 2AFC task, subjects made a judgment of the leading modality (auditory or visual. No significant differences were observed in the spatial threshold based on the point of subjective equivalence (PSE or the slope of psychometric functions (β across all three acoustic conditions. Additionally, both the PSE and β did not significantly differ across velocity, suggesting a fixed spatial window of audio-visual separation. Findings suggest that there was no loss in spatial information accompanying the reduction in spatial cues and reverberation levels tested, and establish a perceptual measure for assessing the veracity of motion generated from discrete locations and in echoic environments.

  6. Adivinanzas audiovisuales para ejercitar el pensamiento creativo infantil Audiovisual Riddles to Stimulate Children’s Creative Thinking

    Directory of Open Access Journals (Sweden)

    Jorge Montalvo Castro

    2011-03-01

    Full Text Available Para resolver una adivinanza hay que asociar ideas, analizar metáforas, descubrir analogías. Por eso, impulsar esta forma de entretenimiento infantil es un modo de ejercitar el pensamiento creativo. Sin embargo, existe un problema: las adivinanzas tradicionales son formas literarias que corresponden a una época pre-digital. ¿Cómo lograr, entonces, que tengan mayor aceptación entre los nativos digitales? Una posible solución sería crear adivinanzas audiovisuales diseñadas especialmente para YouTube. En esta investigación se realizaron cinco prototipos de adivinanzas audiovisuales con características creativas diferentes y se validaron con estudiantes de tercero a sexto grado de educación primaria. Los resultados de la validación permitieron identificar las actitudes, reacciones, interpretaciones y modos de razonamiento de los niños y niñas cuando intentan resolver este tipo de adivinanzas. También se identificaron los recursos de lenguaje y formatos creativos que funcionan mejor en una adivinanza audiovisual. En las conclusiones se destaca la necesidad de formular correctamente los enunciados de las adivinanzas audiovisuales y sus respectivas «pistas» para que los niños y niñas tengan la satisfacción intelectual y emocional de resolverlas. Se precisa, además, que leer o escuchar una adivinanza tradicional representa una experiencia cognitiva y sensorial muy distinta que interactuar con esa misma adivinanza en un lenguaje multimedia. Finalmente, se discute y analiza el rol mediador del docente y la importancia del aprendizaje colaborativo en los proyectos educativos que emplean tecnologías digitales.Solving riddles involves association of ideas, analysis of metaphors, and discovery of analogies. Therefore, promoting this type of children’s entertainment is a way to develop creative thinking. However, there is a problem: traditional riddles are literary forms that correspond to a pre-digital era. How can we increase its

  7. Audiovisual speech perception at various presentation levels in Mandarin-speaking adults with cochlear implants.

    Directory of Open Access Journals (Sweden)

    Shu-Yu Liu

    Full Text Available (1 To evaluate the recognition of words, phonemes and lexical tones in audiovisual (AV and auditory-only (AO modes in Mandarin-speaking adults with cochlear implants (CIs; (2 to understand the effect of presentation levels on AV speech perception; (3 to learn the effect of hearing experience on AV speech perception.Thirteen deaf adults (age = 29.1±13.5 years; 8 male, 5 female who had used CIs for >6 months and 10 normal-hearing (NH adults participated in this study. Seven of them were prelingually deaf, and 6 postlingually deaf. The Mandarin Monosyllablic Word Recognition Test was used to assess recognition of words, phonemes and lexical tones in AV and AO conditions at 3 presentation levels: speech detection threshold (SDT, speech recognition threshold (SRT and 10 dB SL (re:SRT.The prelingual group had better phoneme recognition in the AV mode than in the AO mode at SDT and SRT (both p = 0.016, and so did the NH group at SDT (p = 0.004. Mode difference was not noted in the postlingual group. None of the groups had significantly different tone recognition in the 2 modes. The prelingual and postlingual groups had significantly better phoneme and tone recognition than the NH one at SDT in the AO mode (p = 0.016 and p = 0.002 for phonemes; p = 0.001 and p<0.001 for tones but were outperformed by the NH group at 10 dB SL (re:SRT in both modes (both p<0.001 for phonemes; p<0.001 and p = 0.002 for tones. The recognition scores had a significant correlation with group with age and sex controlled (p<0.001.Visual input may help prelingually deaf implantees to recognize phonemes but may not augment Mandarin tone recognition. The effect of presentation level seems minimal on CI users' AV perception. This indicates special considerations in developing audiological assessment protocols and rehabilitation strategies for implantees who speak tonal languages.

  8. SU-E-J-235: Audiovisual Biofeedback Improves the Correlation Between Internal and External Respiratory Motion

    International Nuclear Information System (INIS)

    Purpose: External respiratory surrogates are often used to predict internal lung tumor motion for beam gating but the assumption of correlation between external and internal surrogates is not always verified resulting in amplitude mismatch and time shift. To test the hypothesis that audiovisual (AV) biofeedback improves the correlation between internal and external respiratory motion, in order to improve the accuracy of respiratory-gated treatments for lung cancer radiotherapy. Methods: In nine lung cancer patients, 2D coronal and sagittal cine-MR images were acquired across two MRI sessions (pre- and mid-treatment) with (1) free breathing (FB) and (2) AV biofeedback. External anterior-posterior (AP) respiratory motions of (a) chest and (b) abdomen were simultaneously acquired with physiological measurement unit (PMU, 3T Skyra, Siemens Healthcare Erlangen, Germany) and real-time position management (RPM) system (Varian, Palo Alto, USA), respectively. Internal superior-inferior (SI) respiratory motions of (c) lung tumor (i.e. centroid of auto-segmented lung tumor) and (d) diaphragm (i.e. upper liver dome) were measured from individual cine-MR images across 32 dataset. The four respiratory motions were then synchronized with the cine-MR image acquisition time. Correlation coefficients were calculated in the time variation of two nominated respiratory motions: (1) chest-abdomen, (2) abdomen-diaphragm and (3) diaphragm-lung tumor. The three combinations were compared between FB and AV biofeedback. Results: Compared to FB, AV biofeedback improved chest-abdomen correlation by 17% (p=0.005) from 0.75±0.23 to 0.90±0.05 and abdomen-diaphragm correlation by 4% (p=0.058) from 0.91±0.11 to 0.95±0.05. Compared to FB, AV biofeedback improved diaphragm-lung tumor correlation by 12% (p=0.023) from 0.65±0.21 to 0.74±0.16. Conclusions: Our results demonstrated that AV biofeedback significantly improved the correlation of internal and external respiratory motion, thus

  9. Conference Review - Languages & The Media, 6th International Conference & Exhibition on Language Transfer in Audiovisual Media, October 25-27, 2006, Berlin

    OpenAIRE

    Ellen Christoffersen

    2012-01-01

    The participants of the conference, which had as its theme “Free Access – Priceless Rights?”, were professionals involved in subtitling, voice-over or translation, language industry specialists, distributors of audiovisual media products, producers of media programmes, broadcasters, researchers and representatives of viewer organisations.

  10. Conference Review - Languages & The Media, 6th International Conference & Exhibition on Language Transfer in Audiovisual Media, October 25-27, 2006, Berlin

    Directory of Open Access Journals (Sweden)

    Ellen Christoffersen

    2012-08-01

    Full Text Available The participants of the conference, which had as its theme “Free Access – Priceless Rights?”, were professionals involved in subtitling, voice-over or translation, language industry specialists, distributors of audiovisual media products, producers of media programmes, broadcasters, researchers and representatives of viewer organisations.

  11. Twenty-Fifth Annual Audio-Visual Aids Conference, Wednesday 9th to Friday 11th July 1975, Whitelands College, Putney SW15. Conference Preprints.

    Science.gov (United States)

    National Committee for Audio-Visual Aids in Education, London (England).

    Preprints of papers to be presented at the 25th annual Audio-Visual Aids Conference are collected along with the conference program. Papers include official messages, a review of the conference's history, and presentations on photography in education, using school broadcasts, flexibility in the use of television, the "communications generation,"…

  12. Does audiovisual stimulation with music and nature sights (MuViCure) reduce pain and discomfort during placement of a femoral nerve block?

    Science.gov (United States)

    Nikolajsen, Lone; Lyndgaard, Kirsten; Schriver, Nina B; Moller, Jytte F

    2009-02-01

    MuViCure (Photobia ApS, Copenhagen, Denmark) is a new program for audiovisual stimulation. We hypothesized that audiovisual stimulation would reduce pain and discomfort and improve patients' well-being during placement of a femoral nerve block. Fifty-five outpatients scheduled for anterior cruciate ligament reconstruction were randomly allocated into three groups: the first group received audiovisual stimulation (MuViCure), the second group received audio stimulation (MusiCure, Gefion Records ApS, Virum, Denmark), and the third group received no intervention (control). Ten of the 55 patients underwent a qualitative in-depth interview 1-2 days after surgery. Pain and discomfort during the procedure were more prominent in the MuViCure group when compared with the other two groups. Despite these negative results, 14 of the 19 patients in the MuViCure group answered that MuViCure had a positive effect on their well-being. The qualitative interviews revealed that a number of factors other than the audiovisual stimulation had a significant impact on the patients' experience. The use of MuViCure may be more appropriate in other settings. PMID:19185817

  13. Audiovisual Perception of Noise Vocoded Speech in Dyslexic and Non-Dyslexic Adults: The Role of Low-Frequency Visual Modulations

    Science.gov (United States)

    Megnin-Viggars, Odette; Goswami, Usha

    2013-01-01

    Visual speech inputs can enhance auditory speech information, particularly in noisy or degraded conditions. The natural statistics of audiovisual speech highlight the temporal correspondence between visual and auditory prosody, with lip, jaw, cheek and head movements conveying information about the speech envelope. Low-frequency spatial and…

  14. Lecture Hall and Learning Design: A Survey of Variables, Parameters, Criteria and Interrelationships for Audio-Visual Presentation Systems and Audience Reception.

    Science.gov (United States)

    Justin, J. Karl

    Variables and parameters affecting architectural planning and audiovisual systems selection for lecture halls and other learning spaces are surveyed. Interrelationships of factors are discussed, including--(1) design requirements for modern educational techniques as differentiated from cinema, theater or auditorium design, (2) general hall…

  15. Formação do campo audiovisual brasileiro: reflexões sobre a relação entre cinema e televisão no Brasil

    Directory of Open Access Journals (Sweden)

    Bahia, Lia

    2010-01-01

    Full Text Available Os estudos sobre audiovisual no Brasil privilegiaram e reforçaram os lugares rígidos de distinções entre cinema e televisão. A presente investigação faz uma revisão deste processo de afastamento dos meios, considerando as disputas, os posicionamentos dos agentes e as negociações que atravessaram a história do audiovisual nacional. Apesar de distintivamente separados, houve importantes momentos de contatos entre cinema e televisão no país, que nos anos 2000 vão ser cada vez mais estimulados pela indústria audiovisual diante da tendência mundial da convergência cultural. O audiovisual nacional contemporâneo irá transitar entre continuidades históricas e tendências internacionais, apontando um processo de reorganização do campo no qual as fronteiras e lugares de distinções historicamente demarcados se movem

  16. Assessing the effect of culturally specific audiovisual educational interventions on attaining self-management skills for chronic obstructive pulmonary disease in Mandarin- and Cantonese-speaking patients: a randomized controlled trial

    Directory of Open Access Journals (Sweden)

    Poureslami I

    2016-08-01

    Full Text Available Iraj Poureslami,1,2 Susan Kwan,3 Stephen Lam,4,5 Nadia A Khan,6,7 John Mark FitzGerald 8,9 1Respiratory Division, Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada; 2Department of Graduate Studies, Centre for Clinical Epidemiology and Evaluation, Vancouver Coastal Health Research Institute, Vancouver, Canada; 3Respiratory Department, Burnaby Hospital, University of British Columbia, Burnaby, Canada; 4Respiratory Division, University of British Columbia, Vancouver, Canada; 5Department of Integrative Oncology, BC Cancer Research Centre, Vancouver, Canada; 6Department of Internal Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada; 7Department of Internal Medicine, Providence Health Care Authority, Vancouver, Canada; 8VGH Divisions of Respiratory Medicine, University of British Columbia, Vancouver, Canada; 9Respiratory Medicine, Vancouver Coastal Health Authority, Vancouver Coastal Health Research Institute, Institute for Heart and Lung Health, The Lung Centre, Gordon and Leslie Diamond Health Care Centre, Vancouver, Canada Background: Patient education is a key component in the management of chronic obstructive pulmonary disease (COPD. Delivering effective education to ethnic groups with COPD is a challenge. The objective of this study was to develop and assess the effectiveness of culturally and linguistically specific audiovisual educational materials in supporting self-management practices in Mandarin- and Cantonese-speaking patients. Methods: Educational materials were developed using participatory approach (patients involved in the development and pilot test of educational materials, followed by a randomized controlled trial that assigned 91 patients to three intervention groups with audiovisual educational interventions and one control group (pamphlet. The patients were recruited from outpatient clinics. The primary outcomes were improved inhaler technique and

  17. The overlapping of sound and the narrative structure of the audiovisual message / La anticipación del sonido y su relación con la estructura narrativa del mensaje audiovisual

    Directory of Open Access Journals (Sweden)

    Ddo. Luis Fernando Morales Morante - fernando.morales@uab.es

    2008-01-01

    Full Text Available Abstract: The delete in sound with respect to the image (overlapping is an expressive resource of the audiovisual editing that is frequently used by directors to introduce a new or relevant action into the story being told. Nevertheless, there are no empirical studies that state this effect as a consequence of the overlapping. In this article, we carry out a qualitative study of 235 overlappings from sequences of films, news and TV commercials, retrieved in the Internet. As a result, we note a use of the overlapping as a coherent semantic structure defining this sort of messages, and a casual relation between variation of intensity of sound and emotional responses such as surprise. This conclusion can be very useful for the development of a method of analysis and the improvement of the audiovisual discourses efficacy based upon emotional stimuli; likewise, this can be very handful for the design of efficient postproduction systems of sound and video.El retraso del sonido respecto de la imagen (overlapping constituye un recurso expresivo del montaje audiovisual utilizado frecuentemente por los realizadores para remarcar el ingreso de una acción nueva o relevante en el desarrollo de las historias. Sin embargo, no existen estudios empíricos que avalen el efecto directamente asociado a este procedimiento en los discursos. En el presente artículo se efectúa un estudio cualitativo mediante el cual se analiza una muestra de 235 overlappings de secuencias de películas, noticias y anuncios de publicidad, registrados de vídeos de Internet. Se advierte un tratamiento fílmico propio del overlapping, la existencia de una estructura semántica coherente que define este tipo de mensajes y una eventual relación entre los cambios de la intensidad del sonido con efectos emocionales como la sorpresa. Los resultados obtenidos pueden ser útiles para desarrollar un método de análisis y mejora de la efectividad de los discursos audiovisuales basados en la

  18. Lousa Digital Interativa: avaliação da interação didática e proposta de aplicação de narrativa audiovisual

    OpenAIRE

    García García, Francisco; Fernandez, Rogério Garcia; Souza, Karla Isabel de

    2011-01-01

    O uso de audiovisual em sala de aula não garante uma eficácia na aprendizagem, mas para os estudantes é um elemento interessante e ainda atrativo. Este trabalho — uma aproximação de duas pesquisas: a primeira apresenta a importância da interação didática com a LDI e a segunda, uma lista de elementos de narrativa audiovisual que podem ser aplicados em sala de aula — propõe o domínio de elementos da narrativa audiovisual como uma possibilidade teórica para o professor que quer produzir um conte...

  19. Brain responses and looking behaviour during audiovisual speech integration in infants predict auditory speech comprehension in the second year of life.

    Directory of Open Access Journals (Sweden)

    ElenaVKushnerenko

    2013-07-01

    Full Text Available The use of visual cues during the processing of audiovisual speech is known to be less efficient in children and adults with language difficulties and difficulties are known to be more prevalent in children from low-income populations. In the present study, we followed an economically diverse group of thirty-seven infants longitudinally from 6-9 months to 14-16 months of age. We used eye-tracking to examine whether individual differences in visual attention during audiovisual processing of speech in 6 to 9 month old infants, particularly when processing congruent and incongruent auditory and visual speech cues, might be indicative of their later language development. Twenty-two of these 6-9 month old infants also participated in an event-related potential (ERP audiovisual task within the same experimental session. Language development was then followed-up at the age of 14-16 months, using two measures of language development, the Preschool Language Scale (PLS and the Oxford Communicative Development Inventory (CDI. The results show that those infants who were less efficient in auditory speech processing at the age of 6-9 months had lower receptive language scores at 14-16 months. A correlational analysis revealed that the pattern of face scanning and ERP responses to audio-visually incongruent stimuli at 6-9 months were both significantly associated with language development at 14-16 months. These findings add to the understanding of individual differences in neural signatures of audiovisual processing and associated looking behaviour in infants.

  20. Theological Media Literacy Education and Hermeneutic Analysis of Soviet Audiovisual Anti-religious Media Texts in Students’ Classroom

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    Alexander Fedorov

    2015-09-01

    Full Text Available This article realized the Russian way of theological media education literacy andhermeneutic analysis of specific examples of Soviet anti-religiousaudiovisual media texts: a study of the process of interpretation of these media texts, cultural and historical factors influencing the views of the media agency / authors. The hermeneutic analysis suggests media text comprehension through comparison with historical, cultural tradition and reality; penetration of its logic; through comparison of media images in historical and cultural context by combining analysis of the structural, plot, ethical, ideological, iconographic / visual, media stereotypes and analysis of media text characters. An analysis of such audiovisual media texts, in our opinion, is particularly important for media literacy education in the training of future historians, culture, art historians, sociologists, linguists, theologians, psychologists and educators.

  1. Centralidad de la comunicación audiovisual en el entorno digital : propuestas desde la experiencia formativa

    OpenAIRE

    Bonet Bagant, Montse

    2006-01-01

    La nueva centralidad ganada en las últimas décadas porla comunicación audiovisual en el entorno digital de nuevo cuño debe estimular para que los estudios de Comunicación promuevan con especial énfasis e interés las investigaciones, los análisis y las reflexiones que les permitan, a ellos y a otros estudios, adecuarse a la nueva sociedad-red, profundizar en la aplicación de las tecnologías de la información y de la comunicación (TIC) al proceso de enseñanza-aprendizaje y promover nuevas todol...

  2. Educación y certificación de competencias laborales en el área audiovisual

    Directory of Open Access Journals (Sweden)

    Udo Jacobsen

    2007-12-01

    Full Text Available En el Congreso Nacional de Chile se encuentra en trámite una ley sobre certificación de competencias laborales, que permitiría obtener un tipo de reconocimiento no necesariamente dependiente de la educación formal. Este artículo discute las implicaciones de tal sistema de acreditación con relación a la oferta educacional en el área audiovisual. Propone, en general, algunas ideas que debieran servir de base para una discusión mayor sobre el rol de las instituciones de educación superior en el ámbito de la formación detécnicos y profesionales en esta área.

  3. El nuevo enfoque de la política audiovisual de la Unión Europea

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    Lic. Carmina Crusafón Baqués

    1999-01-01

    Full Text Available La política audiovisual de la Unión Europea ha modificado entre 1994 y 1998 su enfoque principal en respuesta a la nueva situación coyuntural que vive el sector en el ámbito mundial Durante este periodo, sus actuaciones han mostrado una primacía económico-industrial (programa MEDIA y el Fondo Europeo de Garantía dejando en segundo plano la dimensión cultural; una mayor coordinación con los proyectos de la sociedad de la información (libro verde sobre la convergencia y el mantenimiento un cierto carácter proteccionista (directiva televisión sin fronteras y el énfasis en el déficit comercial con los Estados Unidos.

  4. El doblatge i la subtitulació de The Nightmare before Christmas: una anàlisi contrastiva de les dues grans modalitats de la traducció audiovisual

    OpenAIRE

    Mascaró Genestar, Irene

    2013-01-01

    Aquest treball es proposa analitzar la traducció del doblatge i la subtitulació d'un text audiovisual concret per identificar les tendències i les estratègies de traducció que imperen en cada modalitat. Així mateix, pretén comprovar si a la pràctica es respecten les convencions i normes de la traducció audiovisual

  5. Televisión digital terrestre y cultura audiovisual en España. Nuevos retos del servicio público

    Directory of Open Access Journals (Sweden)

    Francisco Sierra Caballero

    2009-01-01

    Full Text Available Este artículo aborda los retos que la televisión digital terrestre (tdt en España ha tenido que enfrentar en los últimos años. El autor sostiene que la puesta en marcha de este tipo de modelo ha contribuido a definir un nuevo marco de apertura y modificación del sistema y la cultura audiovisual, logro que, a corto plazo, augura significativas transformaciones estructurales del mercado y la industria audiovisual del Estado español. Asimismo, el trabajo analiza la discusión sobre el papel de las políticas culturales y el futuro del sistema radiotelevisivo estatal, así como la viabilidad de la industria televisiva ante la sobresaturación del número de aperadores en competencia.

  6. Descripción y análisis de las normas de metadatos para intercambio de información audiovisual de la Digital Production Partnership (dpp

    Directory of Open Access Journals (Sweden)

    Jorge Caldera Serrano

    2015-11-01

    Full Text Available La entidad británica Digital Production Partnership (dpp es una asociación de creciente creación pero que cuenta con socios indudablemente solventes y potentes en el ámbito de la información audiovisual en los medios televisivos. Entre las acciones de la DPP se encuentra la redacción de una directiva de metadatos asociados a la información audiovisual con el fin de que sea un modelo estándar para el intercambio de recursos audiovisuales. Este trabajo tiene como objetivo el mostrar dicha directiva así como las principales ventajas y características de dicha acción y como puede servir de base a la implementación de bases de datos documentales para cadenas de televisión.

  7. Constrastive study of audio-visual prosody of social affects in Mandarin Chinese vs.French : an application for foreign or second language learning

    OpenAIRE

    Lu, Yan

    2015-01-01

    In human face-to-face interaction, social affects should be distinguished from emotional expressions, triggered by innate and involuntary controls of the speaker, by their nature of voluntary controls expressed within the audiovisual prosody and by their important role in the realization of speech acts. They also put into circulation between the interlocutors the social context and social relationship information. The prosody is a main vector of social affects and its cross-language variabili...

  8. THE EFFECT OF USING AUDIO-VISUAL AIDS VERSUS PICTURES ON FOREIGN LANGUAGE VOCABULARY LEARNING OF INDIVIDUALS WITH MILD INTELLECTUAL DISABILITY

    Directory of Open Access Journals (Sweden)

    Zahra Sadat NOORI

    2016-04-01

    Full Text Available This study aimed to examine the effect of using audio-visual aids and pictures on foreign language vocabulary learning of individuals with mild intellectual disability. Method: To this end, a comparison group quasi-experimental study was conducted along with a pre-test and a post-test. The participants were 16 individuals with mild intellectual disability living in a center for mentally disabled individuals in Dezfoul, Iran. They were all male individuals with the age range of 20 to 30. Their mother tongue was Persian, and they did not have any English background. In order to ensure that all participants were within the same IQ level, a standard IQ test, i.e. Colored Progressive Matrices test, was run. Afterwards, the participants were randomly assigned to two experimental groups; one group received the instruction through audio-visual aids, while the other group was taught through pictures. The treatment lasted for four weeks, 20 sessions on aggregate. A total number of 60 English words selected from the English package named 'The Smart Child' were taught. After the treatment, the participants took the posttest in which the researchers randomly selected 40 words from among the 60 target words. Results: The results of Mann-Whitney U-test indicated that using audio-visual aids was more effective than pictures in foreign language vocabulary learning of individuals with mild intellectual disability. Conclusions: It can be concluded that the use of audio-visual aids can be more effective than pictures in foreign language vocabulary learning of individuals with mild intellectual disability.

  9. Las asignaturas proyectos en el grado de comunicación audiovisual de la universitat de Barcelona: un ejemplo de evaluación por competencias

    OpenAIRE

    García Asensio, María Ángeles; Aguilar Paredes, Carlos; Romeo Delgado, Marina; Yepes Baldo, Montserrat; González Argüello, Vicenta; Sánchez Gómez, Lydia; Burset Burillo, Silvia; Berger, Rita, 1959-

    2011-01-01

    En este trabajo presentamos la propuesta de desarrollo de la materia Proyectos del Grado de Comunicación Audiovisual de la Universidad de Barcelona, que incluye las asignaturas Proyectos I y Proyectos II. Estas asignaturas son especialmente idóneas para desarrollar las competencias transversales del grado, dado que su objetivo es integrar las competencias adquiridas en el conjunto de asignaturas cursadas por los alumnos previamente, poniendo en relación los diferentes lengua...

  10. Século Veloz, Imagem Passageira: acaso, corpo e cérebro na edição audiovisual ao vivo

    OpenAIRE

    de Carvalho, Marcelo

    2011-01-01

    A new concept on image and sound editing arises in the art and cultural scenario in late 20th and early 21th century: live editing. New issues were introduced to traditional audiovisual editing, especially related to the idea of cinema editing. This article aims to reflect this new experience in the arts and communication field in its relation to hazard, body and mind. What interest us is how the body, in a performatic space, is the instance that stimulates thought.

  11. Herramientas informáticas disponibles para la automatización de la traducción audiovisual (“revoicing”)

    OpenAIRE

    Martí Ferriol, José Luis

    2009-01-01

    This article evaluates the existing software applications for the main audiovisual translation modalities in which the translation is meant to be reformulated orally (known as revoicing modalities), i.e., audio-description, voice-over and dubbing. The latter is the most interesting one, since the lack of applications for this particular modality is remarkable. Once the evaluation is completed, two automation options for dubbing are proposed. The first one is currently in the final process of ...

  12. Clever Use of Audio-visual Media to Promote the Teaching of History%巧用电教媒体推进历史教学

    Institute of Scientific and Technical Information of China (English)

    刘艳丽

    2012-01-01

    把电教手段引入课堂教学是一类比较新的教学方式创新,特别是运用在历史的教学实践中,在历史课堂上使用电教媒体,不但能增加学生对过去历史的具体感知,同时也可以通过对历史事实的客观描述强化思维力度.本文笔者对电教媒体教学的特点进行了详细介绍,并就如何利用电教媒体推动历史教学方面谈了自己的一些感受.%Audio-visual means of introduction of classroom teaching a class of relatively new way of teaching innovation, especially the use of in the history of teaching practice, the use of audio-visual media in the history classroom, not only to in- crease the students' past history perception, and also throughobjective description of historical facts are efforts to suengthen the thinking. This article the author described in detail the characteristics of the audio-visual media teaching, and on how to promote the teaching of history in the use of audio-visual media to talk about their own feelings.

  13. Aproximación Bibliométrica del Desarrollo e Impacto de la Investigación Internacional en Alfabetización Audiovisual (1960-2011

    Directory of Open Access Journals (Sweden)

    Rafael Repiso

    2012-10-01

    Full Text Available El estudio de la Alfabetización Audiovisual está en constante auge por su relevancia para formar a los ciudadanos en el uso de los medios y las nuevas tecnologías. El objetivo de esta contribución es el de analizar las revistas de impacto internacionales en los que se publican los resultados de investigación sobre Alfabetización Audiovisual y obtener una visión general del desarrollo e impacto internacional de esta temática científica. Para ello, nos basamos en un análisis bibliométrico y de redes sociales que aportan datos significativos sobre el desarrollo e impacto de la investigación internacional en Alfabetización Audiovisual. Las principales aportaciones de este trabajo permiten conocer a quien desea investigar esta temática los principales focos de producción, los investigadores más visibles, los ejes de producción dentro de la propia especialidad, así como las universidades productivas en las revistas de impacto más significativas al respecto.

  14. Relaciones interculturales en educación mediadas por narraciones audiovisuales Audiovisual Narrations Based on Intercultural Relationships in Education

    Directory of Open Access Journals (Sweden)

    Antonio Bautista García-Vera

    2009-10-01

    Full Text Available En este artículo describimos el trabajo iniciado en el año 2008 en dos colegios públicos. Planteamos analizar la posible contribución de la narración de historias con lenguajes de la fotografía y del cine al conocimiento mutuo de los humanos. Pensamos que este tipo de relatos audiovisuales es más adecuado que el textual para vincular lo afectivo y lo racional en el alumnado de educación infantil y primaria que es diverso culturalmente y, muy probablemente, no todos y todas están alfabetizados en la lengua autóctona. Con tem plamos el relato de historias como la base del uso de los medios técnicos para fomentar relaciones intra e intergrupos de dicho alumnado y, consecuentemente, para facilitar el entendimiento entre ellos. Concluimos señalando que las situaciones de enseñanza configuradas por el mencionado uso de los medios tecnológicos ayudan a que los protagonistas de los relatos audiovisuales den sentido a cosas, ideas, relaciones y acontecimientos de la vida que están dispersas; a que construyan significados intersubjetivos, y a que asuman el compromiso de usar el diálogo y la negociación de significados como la mejor forma de fomentar prácticas más democráticas, igualitarias y justas. In this article, we describe a work started in 2008 and carried out in two public schools. We analyze the possible contribution of narration (photographic and film languages to mutual human knowledge and the understanding of the events that surround group knowledge. We think that this type of audiovisual narration is more appropriate than mere texts to relate the affective and rational in Primary school children, as they are a culturally diverse population and, consequently, not all of them are literate in the native language. We envision storytelling as the basis for using of technical resources to encourage not only inter- and intra-group exchanges with these children, but also to encourage mutual understanding among them. We conclude by

  15. Estrategias discursivas de normalización en la producción audiovisual sobre la homoparentalidad

    Directory of Open Access Journals (Sweden)

    Domínguez de la Rosa, Laura

    2014-10-01

    Full Text Available This work aims to know the different discursive strategies of normalization from which is building the lesbian and gay parenting phenomenon. We turn to the analysis of several and specific audiovisual productions, which show this family reality. The research method used is qualitative, in particular the analysis of discourse on the proposal from Potter and Wetherell of interpretative repertoires. We can identify four different repertoires: “constructing identity”, “visibility and closeness”, “lesbian and gay parenting: a possible option” and “sexual orientation”. Analyzed audiovisual productions prefer to assimilate the experience of lesbian and gay parenting in heterosexual relationships, minimizing the presence of differential elements, which can be awkward. Therefore these attempts risk of blur resources, experiences and nuances that might contribute to a collective construction of the phenomenon more rich and complex in progress on legislative, political and social action.Este trabajo pretende conocer las estrategias discursivas de normalización desde las que se está construyendo el fenómeno homoparental en la actualidad. Para ello recurrimos al análisis de distintas producciones audiovisuales que persiguen un aumento de la visibilidad y sensibilización de la opinión pública respecto a la conformación de esta realidad. El método de investigación que se utiliza es cualitativo, en concreto el Análisis del Discurso a partir de la propuesta de Potter y Wetherell de los repertorios interpretativos. Se identifican cuatro repertorios: “construyendo identidad”, “visibilidad y cercanía”, “familia homoparental: una opción posible” y “orientación sexual”. Así comprobamos que se prefiere asimilar el hecho homoparental a la experiencia parental en relaciones heterosexuales, minimizando la presencia de elementos diferenciales. Por lo tanto se corre el riesgo de difuminar recursos y experiencias que pudieran

  16. SU-E-J-236: Audiovisual Biofeedback Improves Breath-Hold Lung Tumor Position Reproducibility Measured with 4D MRI

    International Nuclear Information System (INIS)

    Purpose: Audiovisual biofeedback breath-hold (AVBH) was employed to reproduce tumor position on inhale and exhale breath-holds for 4D tumor information. We hypothesize that lung tumor position will be more consistent using AVBH compared with conventional breath-hold (CBH). Methods: Lung tumor positions were determined for seven lung cancer patients (age: 25 – 74) during to two separate 3T MRI sessions. A breathhold training session was performed prior to the MRI sessions to allow patients to become comfortable with AVBH and their exhale and inhale target positions. CBH and AVBH 4D image datasets were obtained in the first MRI session (pre-treatment) and the second MRI session (midtreatment) within six weeks of the first session. Audio-instruction (MRI: Siemens Skyra) in CBH and verbal-instruction (radiographer) in AVBH were used. A radiation oncologist contoured the lung tumor using Eclipse (Varian Medical Systems); tumor position was quantified as the centroid of the contoured tumor after rigid registration based on vertebral anatomy across two MRI sessions. CBH and AVBH were compared in terms of the reproducibility assessed via (1) the difference between the two exhale positions for the two sessions and the two inhale positions for the sessions. (2) The difference in amplitude (exhale to inhale) between the two sessions. Results: Compared to CBH, AVBH improved the reproducibility of two exhale (or inhale) lung tumor positions relative to each other by 33%, from 6.4±5.3 mm to 4.3±3.0 mm (p=0.005). Compared to CBH, AVBH improved the reproducibility of exhale and inhale amplitude by 66%, from 5.6±5.9 mm to 1.9±1.4 mm (p=0.005). Conclusions: This study demonstrated that audiovisual biofeedback can be utilized for improving the reproducibility of breath-hold lung tumor position. These results are advantageous towards achieving more accurate emerging radiation treatment planning methods, in addition to imaging and treatment modalities utilizing breath

  17. SU-E-J-236: Audiovisual Biofeedback Improves Breath-Hold Lung Tumor Position Reproducibility Measured with 4D MRI

    Energy Technology Data Exchange (ETDEWEB)

    Lee, D; Pollock, S; Keall, P [Radiation Physics Laboratory, Sydney Medical School, The University of Sydney, NSW (Australia); Greer, P [School of Mathematical and Physical Sciences, The University of Newcastle, Newcastle, NSW (Australia); Department of Radiation Oncology, Calvary Mater Newcastle, Newcastle, NSW (Australia); Lapuz, C; Ludbrook, J [Department of Radiation Oncology, Calvary Mater Newcastle, Newcastle, NSW (Australia); Kim, T [Radiation Physics Laboratory, Sydney Medical School, The University of Sydney, NSW (Australia); Department of Radiation Oncology, University of Virginia Health System, Charlottesville, VA (United States)

    2015-06-15

    Purpose: Audiovisual biofeedback breath-hold (AVBH) was employed to reproduce tumor position on inhale and exhale breath-holds for 4D tumor information. We hypothesize that lung tumor position will be more consistent using AVBH compared with conventional breath-hold (CBH). Methods: Lung tumor positions were determined for seven lung cancer patients (age: 25 – 74) during to two separate 3T MRI sessions. A breathhold training session was performed prior to the MRI sessions to allow patients to become comfortable with AVBH and their exhale and inhale target positions. CBH and AVBH 4D image datasets were obtained in the first MRI session (pre-treatment) and the second MRI session (midtreatment) within six weeks of the first session. Audio-instruction (MRI: Siemens Skyra) in CBH and verbal-instruction (radiographer) in AVBH were used. A radiation oncologist contoured the lung tumor using Eclipse (Varian Medical Systems); tumor position was quantified as the centroid of the contoured tumor after rigid registration based on vertebral anatomy across two MRI sessions. CBH and AVBH were compared in terms of the reproducibility assessed via (1) the difference between the two exhale positions for the two sessions and the two inhale positions for the sessions. (2) The difference in amplitude (exhale to inhale) between the two sessions. Results: Compared to CBH, AVBH improved the reproducibility of two exhale (or inhale) lung tumor positions relative to each other by 33%, from 6.4±5.3 mm to 4.3±3.0 mm (p=0.005). Compared to CBH, AVBH improved the reproducibility of exhale and inhale amplitude by 66%, from 5.6±5.9 mm to 1.9±1.4 mm (p=0.005). Conclusions: This study demonstrated that audiovisual biofeedback can be utilized for improving the reproducibility of breath-hold lung tumor position. These results are advantageous towards achieving more accurate emerging radiation treatment planning methods, in addition to imaging and treatment modalities utilizing breath

  18. Safe transport of radioactive material

    International Nuclear Information System (INIS)

    Recently the Agency redefined its policy for education and training in radiation safety. The emphasis is now on long-term strategic planning of general education and training programmes. In line with this general policy the Agency's Standing Advisory Group for the Safe Transport of Radioactive Material (SAGSTRAM) in its 7th meeting (April 1989) agreed that increased training activity should be deployed in the area of transport. SAGSTRAM specifically recommended the development of a standard training programme on this subject area, including audio-visual aids, in order to assist Member States in the implementation of the Agency's Regulations for the Safe Transport of Radioactive Material. This training programme should be substantiated by a biennial training course which is thought to be held either as an Interregional or a Regional Course depending on demand. This training manual, issued as a first publication in the Training Course Series, represents the basic text material for future training courses in transport safety. The topic areas covered by this training manual and most of the texts have been developed from the course material used for the 1987 Bristol Interregional Course on Transport Safety. The training manual is intended to give guidance to the lecturers of a course and will be provided to the participants for retention. Refs, figs and tabs

  19. El fondo documental audiovisual de Radiotelevisión Valenciana: Evolución, transformación y Bien de Interés Cultural. Patrimonio Audiovisual de la Comunidad Valenciana

    Directory of Open Access Journals (Sweden)

    Alfonso-Noguerón, Lola

    2014-07-01

    Full Text Available El Col·legi Oficial de Bibliotecaris i Documentalistes de la Comunitat Valenciana (COBDCV, junto a la Associació Ciudadana i Comunicació (ACICOM han solicitado recientemente la protección de Bien de Interés Cultural (BIC, para los fondos documentales y archivo de Radiotelevisió Valenciana SAU y Radiotelevisión Española de la Comunidad Valenciana. En este texto se analiza, la evolución y transformación de los materiales audiovisuales creados por las empresas del que fuera el Grupo de RTVV a lo largo de los veinticuatro años de emisión. Se mostrará cual ha sido la evolución de este archivo y la situación actual de los materiales, de las bases de datos y del sistema de gestión de contenidos multimedia. Se identifican las razones, como la obsolescencia de los materiales audiovisuales y la precaria situación económica del país, para evidenciar que pese a la protección legal, es un objetivo continuar con la transformación y digitalización del archivo y fondo audiovisual más importante de la Comunidad Valenciana.

  20. Developing a Virtual Book – Material for Virtual Learning Environments

    Directory of Open Access Journals (Sweden)

    Morten Fahlvik

    2007-11-01

    Full Text Available This article describes the process of, and considerations taken when Virtual Learning Materials were developed for an international study in Comparative Social Work arranged by the VIRCLASS project. The steps taken and the elements included in the Virtual Book – A Guide to Social Work in Europe are presented in details to inform others who are planning to make virtual learning materials. Students from 11 countries in Europe participated, and their reception of this material and learning outcomes from using it are analysed and presented. Furthermore; the article discuss how the learning material contributes to students’ learning, how a common understanding of practice enhances knowledge-building and in what way audio-visual learning material can contribute to good learning in e-learning courses. The results are discussed in relation to theories about composite texts and community of inquiry, and outlines some challenges for e-teachers’ competences.

  1. Can you hear me yet? An intracranial investigation of speech and non-speech audiovisual interactions in human cortex

    Science.gov (United States)

    Rhone, Ariane E.; Nourski, Kirill V.; Oya, Hiroyuki; Kawasaki, Hiroto; Howard, Matthew A.; McMurray, Bob

    2016-01-01

    In everyday conversation, viewing a talker's face can provide information about the timing and content of an upcoming speech signal, resulting in improved intelligibility. Using electrocorticography, we tested whether human auditory cortex in Heschl's gyrus (HG) and on superior temporal gyrus (STG) and motor cortex on precentral gyrus (PreC) were responsive to visual/gestural information prior to the onset of sound and whether early stages of auditory processing were sensitive to the visual content (speech syllable versus non-speech motion). Event-related band power (ERBP) in the high gamma band was content-specific prior to acoustic onset on STG and PreC, and ERBP in the beta band differed in all three areas. Following sound onset, we found with no evidence for content-specificity in HG, evidence for visual specificity in PreC, and specificity for both modalities in STG. These results support models of audio-visual processing in which sensory information is integrated in non-primary cortical areas. PMID:27182530

  2. Virtual Attendance: Analysis of an Audiovisual over IP System for Distance Learning in the Spanish Open University (UNED

    Directory of Open Access Journals (Sweden)

    Esteban Vázquez-Cano

    2013-07-01

    Full Text Available This article analyzes a system of virtual attendance, called “AVIP” (AudioVisual over Internet Protocol, at the Spanish Open University (UNED in Spain. UNED, the largest open university in Europe, is the pioneer in distance education in Spain. It currently has more than 300,000 students, 1,300 teachers, and 6,000 tutors all over the world, besides Spain. This university is redefining, on the lines of other universities, many of its academic processes to meet the new requirements of the European Higher Education Area (EHEA. Since its inception, more than 30 years ago, the methodology chosen by UNED has been blended learning. Today, this university combines face-to-face tutorial sessions with new methodological proposals, mediated by ICT. Through a quantitative methodology, the perception of students and tutors of the new model of virtual tutoring, called AVIP Classrooms, was analyzed. The results show that the new model greatly improves the orientation and teaching methodology of tutors. However, it requires training and new approaches to provide a more collaborative and participatory environment for students.

  3. A Novel Algorithm for Acoustic and Visual Classifiers Decision Fusion in Audio-Visual Speech Recognition System

    Directory of Open Access Journals (Sweden)

    P.S. Sathidevi

    2010-03-01

    Full Text Available Audio-visual speech recognition (AVSR using acoustic and visual signals of speech have received attention recently because of its robustness in noisy environments. Perceptual studies also support this approach by emphasizing the importance of visual information for speech recognition in humans. An important issue in decision fusion based AVSR system is how to obtain the appropriate integration weight for the speech modalities to integrate and ensure the combined AVSR system’s performances better than that of the audio-only and visual-only systems under various noise conditions. To solve this issue, we present a genetic algorithm (GA based optimization scheme to obtain the appropriate integration weight from the relative reliability of each modality. The performance of the proposed GA optimized reliability-ratio based weight estimation scheme is demonstrated via single speaker, mobile functions isolated word recognition experiments. The results show that the proposed scheme improves robust recognition accuracy over the conventional unimodal systems and the baseline reliability ratio-based AVSR system under various signal to noise ratio conditions.

  4. Estereotipos de género en los contenidos audiovisuales infantiles Gender stereotypes in audiovisual products for children

    Directory of Open Access Journals (Sweden)

    Eva Espinar Ruiz

    2007-10-01

    Full Text Available En este artículo se analiza la transmisión de características estereotipadas de hombres y mujeres a través de la programación y la publicidad infantil. Para ello se emplea una muestra de programas y espacios publicitarios emitidos a lo largo del año 2004 en las cadenas de televisión de emisión en abierto de ámbito nacional. De esta forma, se analiza la presencia de hombres y mujeres, los rasgos asociados a los diferentes personajes, así como las características principales de la publicidad dirigida a niñas y niños. In this paper we analyze the transmission of stereotyped characteristics of men and women through audiovisual products for children. With this aim, we employ a sample of programs and advertisements forecasted in 2004 in the Spanish television. In this sense, we analyze the presence of men and women, the elements associated with different characters, and the principal features of advertisements targeted at girls and boys.

  5. SU-E-J-158: Audiovisual Biofeedback Reduces Image Artefacts in 4DCT: A Digital Phantom Study

    Energy Technology Data Exchange (ETDEWEB)

    Pollock, S; Kipritidis, J; Lee, D; Keall, P [University of Sydney, Sydney (Australia); Bernatowicz, K [Paul Scherrer Institute, Psi, Aargau (Switzerland)

    2015-06-15

    Purpose: Irregular breathing motion has a deleterious impact on 4DCT image quality. The breathing guidance system: audiovisual biofeedback (AVB) is designed to improve breathing regularity, however, its impact on 4DCT image quality has yet to be quantified. The purpose of this study was to quantify the impact of AVB on thoracic 4DCT image quality by utilizing the digital eXtended Cardiac Torso (XCAT) phantom driven by lung tumor motion patterns. Methods: 2D tumor motion obtained from 4 lung cancer patients under two breathing conditions (i) without breathing guidance (free breathing), and (ii) with guidance (AVB). There were two breathing sessions, yielding 8 tumor motion traces. This tumor motion was synchronized with the XCAT phantom to simulate 4DCT acquisitions under two acquisition modes: (1) cine mode, and (2) prospective respiratory-gated mode. Motion regularity was quantified by the root mean square error (RMSE) of displacement. The number of artefacts was visually assessed for each 4DCT and summed up for each breathing condition. Inter-session anatomic reproducibility was quantified by the mean absolute difference (MAD) between the Session 1 4DCT and Session 2 4DCT. Results: AVB improved tumor motion regularity by 30%. In cine mode, the number of artefacts was reduced from 61 in free breathing to 40 with AVB, in addition to AVB reducing the MAD by 34%. In gated mode, the number of artefacts was reduced from 63 in free breathing to 51 with AVB, in addition to AVB reducing the MAD by 23%. Conclusion: This was the first study to compare the impact of breathing guidance on 4DCT image quality compared to free breathing, with AVB reducing the amount of artefacts present in 4DCT images in addition to improving inter-session anatomic reproducibility. Results thus far suggest that breathing guidance interventions could have implications for improving radiotherapy treatment planning and interfraction reproducibility.

  6. Século Veloz, Imagem Passageira: acaso, corpo e cérebro na edição audiovisual ao vivo

    Directory of Open Access Journals (Sweden)

    CARVALHO, Marcelo

    2011-05-01

    Full Text Available A new concept on image and sound editing arises in the art and cultural scenario in late 20th and early 21th century: live editing. New issues were introduced to traditional audiovisual editing, especially related to the idea of cinema editing. This article aims to reflect this new experience in the arts and communication field in its relation to hazard, body and mind. What interest us is how the body, in a performatic space, is the instance that stimulates thought.

  7. A framework for event detection in field-sports video broadcasts based on SVM generated audio-visual feature model. Case-study: soccer video

    OpenAIRE

    Sadlier, David A.; O''Connor, Noel E.; Murphy, Noel; Marlow, Seán

    2004-01-01

    In this paper we propose a novel audio-visual feature-based framework, for event detection in field sports broadcast video. The system is evaluated via a case-study involving MPEG encoded soccer video. Specifically, the evidence gathered by various feature detectors is combined by means of a learning algorithm (a support vector machine), which infers the occurrence of an event, based on a model generated during a training phase, utilizing a corpus of 25 hours of content. The system is evaluat...

  8. Transformaciones recientes del paisaje audiovisual español : un análisis del sector cinematográfico y televisivo (1994-1997)

    OpenAIRE

    Lic. Carmina Crusafón Baqués

    1998-01-01

    El paisaje audiovisual español ha experimentado en los últimos tres años cambios de distinta naturaleza: políticoeconómica, jurídica y tecnológica. Estas transformaciones no son independientes sino que algunas son causa y/o consecuencia de las otras. De una parte, el cambio del gobierno socialista al del Partido Popular ha comportado una nueva regulación cinematográfica, que ha ido acompañada de un incremento de la cuota de mercado del cine español. Por otro lado, la presencia de Telefónica e...

  9. THE EFFECT OF USING AUDIO-VISUAL AIDS VERSUS PICTURES ON FOREIGN LANGUAGE VOCABULARY LEARNING OF INDIVIDUALS WITH MILD INTELLECTUAL DISABILITY

    OpenAIRE

    Zahra Sadat NOORI; FARVARDIN Mohammad Taghi

    2016-01-01

    This study aimed to examine the effect of using audio-visual aids and pictures on foreign language vocabulary learning of individuals with mild intellectual disability. Method: To this end, a comparison group quasi-experimental study was conducted along with a pre-test and a post-test. The participants were 16 individuals with mild intellectual disability living in a center for mentally disabled individuals in Dezfoul, Iran. They were all male individuals with the age range of 20 to 30. Th...

  10. Brand placement y advertainment: integración y fusión entre la ficción audiovisual y las marcas

    OpenAIRE

    Pino, Cristina del; Olivares, Fernando

    2007-01-01

    Estamos siendo testigos directos de la mayor revolución habida en las estructuras y contenidos del mundo audiovisual y publicitario en nuestro país. Los cambios en los contenidos y formatos televisivos están estrechamente unidos a los producidos en el panorama de fórmulas publicitarias y, estos a su vez, a los cambios sociales de los espectadores-consumidores. La superación de las formas convencionales de hacer publicidad, viene siendo una realidad, avalada por la creciente diversidad de fórm...

  11. Ciudadanía comunicativa en Argentina : Los Foros Participativos de Consulta Pública sobre la propuesta de proyecto de ley de Servicios de Comunicación Audiovisual

    OpenAIRE

    Guzmán, Victor Humberto

    2012-01-01

    Este trabajo busca presentar la lectura de algunos resultados preliminares de la indagación acerca del proceso de disputa en torno a la sanción de la Ley de Servicios de Comunicación Audiovisual en Argentina. La ley, finalmente sancionada en 2009, se inserta en una larga discusión público-política que todavía no se encuentra saldada. En este marco presentaremos un mapa general de las intervenciones puestas en escena en los llamados Foros Participativos de Consulta Pública sobre la propuest...

  12. Les representacions audiovisuals de l'espai domèstic a les xarxes socials : El cas de YouTube

    OpenAIRE

    Garcia i Pérez, Cèsar

    2012-01-01

    Per mitjà de l'etnografia virtual aplicada a un cas d'estudi sobre alguns canals d'usuaris de YouTube1, aquest treball té per objectiu investigar el significat de les representacions audiovisuals de l'espai domèstic i de la vida quotidiana publicada a les xarxes socials des del punt de vista dels seus creadors i de l'audiència. Por medio de la etnografía virtual aplicada a un caso de estudio sobre algunos canales de usuarios de YouTube1, este trabajo tiene por objetivo investigar el signif...

  13. Video espacios/ posibles. Una aproximación geográfica del lenguaje audiovisual en la Frontera Norte de México.

    OpenAIRE

    HUERTA JIMÉNEZ, MAYRA

    2016-01-01

    [EN] Video possible/spaces. A geographic approximation to the audiovisual language of the Northern border of Mexico. The purpose of this thesis is to evidence the artistic practice that develops en a specific context, the city of Tijuana on the Northern border of Mexico. This practice limited to Video Art and the artists that produce within this medium, but overall the relationship between the artists and video. The emphasis on the body of work is put on the experience of the artists to pr...

  14. Sobre la identidad de la ciudad. El estudio de la interacción audiovisual en las nuevas herramientas para el proyecto. El caso de Cuenca

    OpenAIRE

    Palmese, Cristina

    2014-01-01

    Esta investigación se centra en el estudio de la dimensión audiovisual de la arquitectura, como aproximación intersensorial a la aprehensión e ideación del espacio. Poniendo en evidencia la complejidad de la relación hombre-medio, se plantea la necesidad de desarrollar nuevas metodologías y herramientas que tengan en cuenta dicha complejidad y que favorezcan el desarrollo del proyecto. Nos mueve en esta investigación la convicción de que los cambios rápidos y profundos que caracterizan nuestr...

  15. Desarrollo e implementación de la mejora audiovisual de la página "Study in México"

    OpenAIRE

    Margallo Navarro, Miguel; Aparicio Azpilicueta, Ander

    2010-01-01

    El principal objetivo de esta tesis es desarrollar e implementar una propuesta de mejora audiovisual para la página Web www.studyinmexico.com.mx. Derivado de este se han generado otros objetivos particulares expuestos a continuación •Aumentar el impacto de la página Study in Mexico a través de pequeños videos comprimidos y subir estos a la red. •Usar nuevas tecnologías de información como animaciones en flash para hacer más clara y concreta la informa...

  16. Interculturalidad en traducción audiovisual: doblaje alemán-español de La vida de los otros

    OpenAIRE

    Estévez Pequeño, Marta

    2015-01-01

    Una de las características de nuestro mundo es la diversidad lingüística y cultural y, por ende, la interrelación de ambas. Como ejemplo en el que se entremezclan lengua y cultura, podemos citar el cine y, en lo que aquí nos atañe, la traducción audiovisual, más concretamente, la modalidad del doblaje. El oficio del traductor está indudablemente ligado al contacto y la interrelación entre lengua y cultura, ya que la esencia de la traducción no es simplemente trasladar un texto de una lengua a...

  17. La confluencia entre educomunicación y comunicación comunitaria en las prácticas de creación audiovisual participativa

    OpenAIRE

    Mayugo i Majó, Carme

    2016-01-01

    Esta tesis indaga en las posibilidades de confluencia entre la educomunicación y la comunicación comunitaria a partir del análisis de las prácticas de creación audiovisual participativa. Para ello, se sirve de cuatro indicadores clave: la satisfacción sinérgica de necesidades, la prealimentación, el diálogo y la convivencialidad. La investigación examina la comunicación desde estas prácticas con el propósito de proponer un campo transdisciplinario. Busca devolver a la epistemol...

  18. Redefinición del espectador cinematográfico en relación al audiovisual contemporáneo. Un nuevo agente en la producción cultural

    OpenAIRE

    Pérez Pastor, Laura

    2009-01-01

    El cine se enfrenta, hoy, a múltiples retos en su propia configuración, acompañando un frenético desarrollo tecnológico. Se ha convertido en matriz de la multiplicación audiovisual contemporánea. En este contexto es preciso redefinir al espectador como sujeto que encarna hoy nuevas funciones y ocupa espacios variados en el conjunto de la producción cultural.Se apuesta por una redefinición del espectador cinematográfico en relación a la evolución del audiovisual digital -sus implicaciones tecn...

  19. QUALITY AND PROCESSES OF BANGLADESH OPEN UNIVERSITY COURSE MATERIALS DEVELOPMENT

    Directory of Open Access Journals (Sweden)

    K. M. Rezanur RAHMAN

    2006-04-01

    Full Text Available A new member of the mega-Universities, Bangladesh Open University (BOU introduced a course team approach for developing effective course materials for distance students. BOU teaching media includes printed course books, study guides, radio and television broadcasts, audiocassettes and occasional face-to-face tutorials. Each course team comprises specialist course writer(s, editor, trained style editor, graphic designer,illustrator, audio-visual producer and anonymous referees. An editorial board or preview committee is responsible for the final approval for publishing or broadcasting materials for learners. This approach has been proved to be effective, but appeared to be complicated and time-consuming. This report focuses on the quality and processes of BOU course materials development taking into account the strengths and weaknesses of the current approach.

  20. El archivo audiovisual de Radiotelevisión Valenciana como archivo histórico. Propuestas de actuación

    Directory of Open Access Journals (Sweden)

    Soler Monreal, Concha

    2014-07-01

    Full Text Available El objetivo de este trabajo es proponer actuaciones para la salvaguarda y difusión del patrimonio audiovisual valenciano. Se plantea que el archivo de Radiotelevisión Valenciana sea el germen de un futuro archivo audiovisual de la Comunidad Valenciana mediante la incorporación de fondos a través del depósito legal y el número ISAN, la recopilación de webseries y otros materiales difundidos en la Red producidos en la Comunidad Valenciana, y la posibilidad de custodiar materiales de emisoras de televisión y radiodifusión de carácter local y/o autonómico. De este modo se consigue que el archivo de RTVV se mantenga vivo tras el cese de actividad de la cadena, explotando su valor comercial y difundiendo sus contenidos a la vez que se custodia y se garantiza su preservación.