Head Related Transfer Function And Acoustic Virtual Reality

Author : Kazuhiro Iida
Publisher : Springer Nature
ISBN 13 : 9811397457
Total Pages : 234 pages
Book Rating : 4.55/5 ( download)

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Download or read book Head-Related Transfer Function and Acoustic Virtual Reality written by Kazuhiro Iida and published by Springer Nature. This book was released on 2019-10-23 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers all aspects of head-related transfer function (HRTF), from the fundamentals through to the latest applications, such as 3D sound systems. An introductory chapter defines HRTF, describes the coordinate system used in the book, and presents the most recent research achievements in the field. HRTF and sound localization in the horizontal and median planes are then explained, followed by discussion of individual differences in HRTF, solutions to this individuality (personalization of HRTF), and methods of sound image control for an arbitrary 3D direction, encompassing both classic theory and state of the art data. The relations between HRTF and sound image distance and between HRTF and speech intelligibility are fully explored, and measurement and signal processing methods for HRTF are examined in depth. Here, supplementary material is provided to enable readers to measure and analyze HRTF by themselves. In addition, some typical HRTF databases are compared. The final two chapters are devoted to the principles and applications of acoustic virtual reality. This clearly written book will be ideal for all who wish to learn about HRTF and how to use it in their research.

Author : Tobias Lentz
Publisher : Logos Verlag Berlin GmbH
ISBN 13 : 3832519351
Total Pages : 166 pages
Book Rating : 4.53/5 ( download)

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Download or read book Binaural Technology for Virtual Reality written by Tobias Lentz and published by Logos Verlag Berlin GmbH. This book was released on 2008 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of non-intrusive virtual environments is gaining more and more importance but was focused mainly on addressing the visual sense. However, the human perception consists not only of visual input and thus it would be worthwhile to create multi-modal and interactive virtual environments. This thesis describes the techniques required to include the acoustic component into a virtual environment and furthermore the implementation of a software system, which takes advantage of these techniques to create complex acoustical scenes in real time. The system is based on the binaural technology. It features spatially distributed sound sources which are utilized to create an environment that is as authentic as possible. This comprises a description of the source, including its relevant angle-, distance- and time- dependent radiation, the sound distribution in the virtual scene (room acoustics), the perception-related consideration of all sound field components, as well as the exact reproduction of the artificial sound at the ears of the user. The focus of this thesis is put on the reproduction technology. In this context, an approach for dynamic crosstalk cancellation is presented, which enables a loudspeaker-based reproduction. The required filters are processed in real time on the basis of the position data and measured transfer functions of the outer ear. Furthermore the integration of this spatial audio system into a five-sided Virtual Reality display system is described and evaluated.

Author : Bosun Xie
Publisher : J. Ross Publishing
ISBN 13 : 1604270705
Total Pages : 505 pages
Book Rating : 4.09/5 ( download)

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Download or read book Head-Related Transfer Function and Virtual Auditory Display written by Bosun Xie and published by J. Ross Publishing. This book was released on 2013-07-23 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book systematically details the basic principles and applications of head-related transfer function (HRTF) and virtual auditory display (VAD), and reviews the latest developments in the field, especially those from the author’s own state-of-the-art research group. Head-Related Transfer Function and Virtual Auditory Display covers binaural hearing and the basic principles, experimental measurements, computation, physical characteristics analyses, filter design, and customization of HRTFs. It also details the principles and applications of VADs, including headphone and loudspeaker-based binaural reproduction, virtual reproduction of stereophonic and multi-channel surround sound, binaural room simulation, rendering systems for dynamic and real-time virtual auditory environments, psychoacoustic evaluation and validation of VADs, and a variety of applications of VADs. This guide provides all the necessary knowledge and latest results for researchers, graduate students, and engineers who work in the field of HRTF and VAD.

Author : Durand R. Begault
Publisher :
ISBN 13 :
Total Pages : 248 pages
Book Rating : 4.81/5 ( download)

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Download or read book 3-D Sound for Virtual Reality and Multimedia written by Durand R. Begault and published by . This book was released on 2000 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Gregory C. White
Publisher :
ISBN 13 :
Total Pages : 88 pages
Book Rating : 4.36/5 ( download)

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Download or read book Efficient Implementation of Head-related Transfer Functions for Auditory Virtual Reality written by Gregory C. White and published by . This book was released on 1994 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Ramona Bomhardt
Publisher : Logos Verlag Berlin GmbH
ISBN 13 : 3832545433
Total Pages : 162 pages
Book Rating : 4.37/5 ( download)

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Download or read book Anthropometric Individualization of Head-Related Transfer Functions Analysis and Modeling written by Ramona Bomhardt and published by Logos Verlag Berlin GmbH. This book was released on 2017-09-04 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Human sound localization helps to pay attention to spatially separated speakers using interaural level and time differences as well as angle-dependent monaural spectral cues. In a monophonic teleconference, for instance, it is much more difficult to distinguish between different speakers due to missing binaural cues. Spatial positioning of the speakers by means of binaural reproduction methods using head-related transfer functions (HRTFs) enhances speech comprehension. These HRTFs are influenced by the torso, head and ear geometry as they describe the propagation path of the sound from a source to the ear canal entrance. Through this geometry-dependency, the HRTF is directional and subject-dependent. To enable a sufficient reproduction, individual HRTFs should be used. However, it is tremendously difficult to measure these HRTFs. For this reason this thesis proposes approaches to adapt the HRTFs applying individual anthropometric dimensions of a user. Since localization at low frequencies is mainly influenced by the interaural time difference, two models to adapt this difference are developed and compared with existing models. Furthermore, two approaches to adapt the spectral cues at higher frequencies are studied, improved and compared. Although the localization performance with individualized HRTFs is slightly worse than with individual HRTFs, it is nevertheless still better than with non-individual HRTFs, taking into account the measurement effort.

Author : Stephan Schütze
Publisher : CRC Press
ISBN 13 : 1351727435
Total Pages : 565 pages
Book Rating : 4.33/5 ( download)

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Download or read book New Realities in Audio written by Stephan Schütze and published by CRC Press. This book was released on 2018-01-29 with total page 565 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new realities are here. Virtual and Augmented realities and 360 video technologies are rapidly entering our homes and office spaces. Good quality audio has always been important to the user experience, but in the new realities, it is more than important, it’s essential. If the audio doesn’t work, the immersion of the experience fails and the cracks in the new reality start to show. This practical guide helps you navigate the challenges and pitfalls of designing audio for these new realities. This technology is different from anything we’ve seen before and requires an entirely new approach; this book will introduce the broad concepts you need to know before delving into the practical detail you need. Key Features This book covers audio for all types of new reality technology. At the moment, VR and 360 video are getting a lot of press, but in a few years we will be hearing a lot more about Augmented and Mixed reality technologies as well. A practical guide to creating, designing and implementing audio for this new technology by a leading sound design and implementation expert. Conceptual explanations address the new approaches necessary to designing effective audio for the new realities. Real-world examples and analysis of what does and does not work including detailed case study discussions.

Author : Michael Vorländer
Publisher : Springer Science & Business Media
ISBN 13 : 3540488308
Total Pages : 341 pages
Book Rating : 4.09/5 ( download)

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Download or read book Auralization written by Michael Vorländer and published by Springer Science & Business Media. This book was released on 2007-10-27 with total page 341 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the first focused and detailed textbook on acoustic virtual reality. Auralization is the creation of audible acoustic sceneries from computer-generated data. The term "auralization" is to be understood as being analogue to the well-known technique of "visualization". In visual illustration of scenes, data or any other meaningful information, in movie animation and in computer graphics, we describe the process of "making visible" as visualization. In acoustics, auralization is taking place when acoustic effects, primary sound signals or means of sound reinforcement or sound transmission, are processed to be presented by using electro-acoustic equipment. This book is organized as a comprehensive collection of basics, methodology and strategies of acoustic simulation and auralization.

Author : Randall Shumaker
Publisher : Springer
ISBN 13 : 3540733353
Total Pages : 764 pages
Book Rating : 4.55/5 ( download)

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Download or read book Virtual Reality written by Randall Shumaker and published by Springer. This book was released on 2007-08-24 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the Second International Conference on Virtual Reality, ICVR 2007, held in Beijing, China. It covers 3D rendering and visualization, interacting and navigating in virtual and augmented environments, industrial applications of virtual reality, as well as health, cultural, educational and entertainment applications.

Author : Franz Zotter
Publisher : Springer
ISBN 13 : 3030172074
Total Pages : 210 pages
Book Rating : 4.77/5 ( download)

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Download or read book Ambisonics written by Franz Zotter and published by Springer. This book was released on 2019-04-30 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book provides a concise explanation of the fundamentals and background of the surround sound recording and playback technology Ambisonics. It equips readers with the psychoacoustical, signal processing, acoustical, and mathematical knowledge needed to understand the inner workings of modern processing utilities, special equipment for recording, manipulation, and reproduction in the higher-order Ambisonic format. The book comes with various practical examples based on free software tools and open scientific data for reproducible research. The book’s introductory section offers a perspective on Ambisonics spanning from the origins of coincident recordings in the 1930s to the Ambisonic concepts of the 1970s, as well as classical ways of applying Ambisonics in first-order coincident sound scene recording and reproduction that have been practiced since the 1980s. As, from time to time, the underlying mathematics become quite involved, but should be comprehensive without sacrificing readability, the book includes an extensive mathematical appendix. The book offers readers a deeper understanding of Ambisonic technologies, and will especially benefit scientists, audio-system and audio-recording engineers. In the advanced sections of the book, fundamentals and modern techniques as higher-order Ambisonic decoding, 3D audio effects, and higher-order recording are explained. Those techniques are shown to be suitable to supply audience areas ranging from studio-sized to hundreds of listeners, or headphone-based playback, regardless whether it is live, interactive, or studio-produced 3D audio material.