3 D Audio Using Loudspeakers

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3 D Audio Using Loudspeakers

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Author : William G. Gardner
language : en
Publisher: Springer Science & Business Media
Release Date : 1998-04-30

3 D Audio Using Loudspeakers written by William G. Gardner and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-04-30 with Technology & Engineering categories.

3-D Audio Using Loudspeakers is concerned with 3-D audio systems implemented using a pair of conventional loudspeakers. A well-known problem with these systems is the requirement that the listener be properly positioned for the 3-D illusion to function correctly. This book proposes using the tracked position of the listener's head to optimize the acoustical presentation, thus producing a much more realistic illusion over a larger listening area than existing loudspeaker 3-D audio systems. Head-tracking can be accomplished by applying pattern recognition techniques to images obtained from a video camera. Thus, an immersive audio environment can be created without donning headphones or other equipment. 3-D Audio Using Loudspeakers discusses the theory, implementation, and testing of a head-tracked loudspeaker 3-D audio system. Crosstalk cancellers that can be steered to the location of a tracked listener are described. The objective performance of these systems has been evaluated using simulations and acoustical measurements made at the ears of human subjects. Many sound localization experiments were also conducted; the results show that head-tracking both significantly improves localization when the listener is displaced from the ideal listening location, and also enables dynamic localization cues. Much of the theory and experimental results presented are also applicable to loudspeaker 3-D audio systems in general, not just head-tracked ones. 3-D Audio Using Loudspeakers is of interest to researchers studying virtual acoustic displays, and to engineers developing the same. The book serves as a valuable reference to anyone working in this field.

3d Audio

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Author : Justin Paterson
language : en
Publisher: Routledge
Release Date : 2021-07-25

3d Audio written by Justin Paterson and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-25 with Technology & Engineering categories.

3D Audio offers a detailed perspective of this rapidly developing arena. Written by many of the world’s leading researchers and practitioners, it draws from science, technologies, and creative practice to provide insight into cutting-edge research in 3D audio. Through exploring the intersection of these fields, the reader will gain insight into a number of research areas and professional practice in 3D sonic space. As such, the book acts both as a primer that enables readers to gain an understanding of various aspects of 3D audio, and can inform students and audio enthusiasts, but its deep treatment of a diverse range of topics will also inform professional practitioners and academics beyond their core specialisms. The chapters cover areas such as an Ambisonics, binaural technologies and approaches, psychoacoustics, 3D audio recording, composition for 3D space, 3D audio in live sound, broadcast, and movies – and more. Overall, this book offers a definitive insight into an emerging sound world that is increasingly becoming part of our everyday lives.

3 D Audio Using Loudspeakers

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Author :
language : en
Publisher:
Release Date : 1997

3 D Audio Using Loudspeakers written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with categories.

By William G. Gardner.

Immersive Sound

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Author : Agnieszka Roginska
language : en
Publisher: Taylor & Francis
Release Date : 2017-10-17

Immersive Sound written by Agnieszka Roginska and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-17 with Technology & Engineering categories.

Immersive Sound: The Art and Science of Binaural and Multi-Channel Audio provides a comprehensive guide to multi-channel sound. With contributions from leading recording engineers, researchers, and industry experts, Immersive Sound includes an in-depth description of the physics and psychoacoustics of spatial audio as well as practical applications. Chapters include the history of 3D sound, binaural reproduction over headphones and loudspeakers, stereo, surround sound, height channels, object-based audio, soundfield (ambisonics), wavefield synthesis, and multi-channel mixing techniques. Knowledge of the development, theory, and practice of spatial and multi-channel sound is essential to those advancing the research and applications in the rapidly evolving fields of 3D sound recording, augmented and virtual reality, gaming, film sound, music production, and post-production.

Adaptive 3d Sound Systems

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Author : John Garas
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Adaptive 3d Sound Systems written by John Garas and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.

Adaptive 3D Sound Systems focuses on creating multiple virtual sound sources in 3D reverberant spaces using adaptive filters. Adaptive algorithms are introduced and explained, including the multiple-error filtered-x algorithm and the adjoint LMS algorithm. The book covers the physical, psychoacoustical, and signal processing aspects of adaptive and non-adaptive 3D sound systems. Included is an introduction to spatial hearing, sound localization and reverberation, frequency selectivity of the human auditory system, the state of the art in HRTF-based 3D sound systems, binaural synthesis, and loudspeaker displays. The adaptive approach to HRTF-based 3D sound systems is examined in detail for the general case of creating multiple virtual sound sources at the ears of multiple listeners in a reverberant 3D space. The derived solution can be applied to other applications, such as cross-talk cancellation, loudspeakers and room equalization, concert hall simulation, and active sound control. Several solutions for the problem of moving listeners are introduced. Strategies for enlarging the zones of equalization around the listeners' ears, correct loudspeakers positioning, and using multiresolution filters are proposed. Fast multiresolution spectral analysis using non-uniform sampling is developed for implementation of multiresolution filters. The well-focused topics, along with implementation details for adaptive algorithms, make Adaptive 3D Sound Systems suitable for multimedia applications programmers, advanced level students, and researchers in audio and signal processing.

Ambisonics

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Author : Franz Zotter
language : en
Publisher: Springer
Release Date : 2019-04-30

Ambisonics written by Franz Zotter and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-04-30 with Technology & Engineering categories.

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.

The Art And Science Of 3d Audio Recording

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Author : Edwin Pfanzagl-Cardone
language : en
Publisher: Springer Nature
Release Date : 2023-03-11

The Art And Science Of 3d Audio Recording written by Edwin Pfanzagl-Cardone and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-11 with Technology & Engineering categories.

This professional book offers a unique, comprehensive and timely guide on 3D audio recording. Intended for sound engineers and professionals, and summarizing more than twenty-year research on this topic, it includes extensive information and details on various microphone techniques and loudspeaker layouts, such as Auro-3D®, Dolby® AtmosTM, DTS:X®, MMAD, SONY 360 Reality Audio and Ambisonics. It presents a rich set of results obtained from both objective measurements and subjective listening tests, and a number of case studies for 3D recording, ranging from solo-instrument techniques to full symphony orchestra, and microphone systems for virtual reality applications. Further, it includes a chapter on spatial hearing discussing issues of 3D audio sound reproduction. All in all, this book offers extensive, practical information for sound engineers and professionals.

Investigating The Interaction Between Positions And Signals Of Height Channel Loudspeakers In Reproducing Immersive 3d Sound

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Author : Antonios Karampourniotis
language : en
Publisher:
Release Date :

Investigating The Interaction Between Positions And Signals Of Height Channel Loudspeakers In Reproducing Immersive 3d Sound written by Antonios Karampourniotis and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with Loudspeakers categories.

"Since transmission capacities have significantly increased over the past few years, researchers are now able to transmit a larger amount of data, namely multichannel audio content, in the consumer applications. What has not been investigated in a systematic way yet is how to deliver the multichannel content. Specifically, researchers' attention is focused on the quest of a standardized immersive reproduction format that incorporates height loudspeakers coupled with the new high-resolution and three-dimensional (3D) media content for a comprehensive 3D experience. To better understand and utilize the immersive audio reproduction, this research focused on the (1) interaction between the positioning of height loudspeakers and the signals fed to the loudspeakers, (2) investigation of the perceptual characteristics associated with the height ambiences, and (3) the influence of inverse filtering on perceived sound quality for the realistic 3D sound reproduction. The experiment utilized the existence of two layers of loudspeakers: horizontal layer following the ITU-R BS.775 five-channel loudspeaker configuration and height layer locating a total of twelve loudspeakers at the azimuth of ±30°, ±50°, ±70°, ±90°, ±110° and ±130° and elevation of 30°. Eight configurations were formed, each of which selected four height-loudspeakers from twelve. In the subjective evaluation, listeners compared, ranked and described the eight randomly presented configurations of 4-channel height ambiences. The stimuli for the experiment were four nine-channel (5 channels for the horizontal and 4 for the height loudspeakers) multichannel music. Moreover, an approach of Finite Impulse Response (FIR) inverse filtering was attempted, in order to remove the particular room's acoustic influence. Another set of trained professionals was informally asked to use descriptors to characterize the newly presented multichannel music with height ambiences rendered with inverse filtering. The experimental results indicate the significance of the positioning of the loudspeakers with respect to the signals being fed to those loudspeakers in delivering a 3D sound field. Furthermore, it has been revealed that the perceptual characteristics that listeners linked for multichannel music with height ambiences include envelopment, elevated-ness and fullness. Last but not least, after applying the inverse filtering the subjective preference was not affected significantly. This allows for the author to believe that, in fact, the room's influence with respect to the subjective evaluation is not as important as the appropriate loudspeaker-positioning for the multichannel-reproduced music with height ambiences."--Abstract.

3 D Sound For Virtual Reality And Multimedia

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Author : Durand R. Begault
language : en
Publisher:
Release Date : 2000

3 D Sound For Virtual Reality And Multimedia written by Durand R. Begault and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Computer sound processing categories.

Ambisonics

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Author : FRANZ. FRANK ZOTTER (MATTHIAS.)
language : en
Publisher:
Release Date : 2019

Ambisonics written by FRANZ. FRANK ZOTTER (MATTHIAS.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with categories.