Download or read book Rendering Localized Spatial Audio in a Virtual Auditory Space written by Dmitry Nikolaevich Zotkin and published by . This book was released on 2002 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: High-quality virtual audio scene rendering is a must for emerging virtual and augmented reality applications, for perceptual user interfaces, and sonification of data. We describe algorithms for creation of virtual auditory spaces by rendering cues that arise from anatomical scattering, environmental scattering, and dynamical effects. We use a novel way of personalizing the head related transfer functions (HRTFs) from a database, based on anatomical measurements. Details of algorithms for HRTF interpolation, room impulse response creation, HRTF selection from a database, and audio scene presentation are presented. Our system runs in real time on an office PC without specialized DSP hardware.
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.
Download or read book Computational Framework for the Analysis of Spatial Audio written by Steven E. Crawford and published by . This book was released on 2020 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In this thesis, the extent to which the coherence properties of binaural signals can be used in the computation of cues that aid in the prediction of perceived location and apparent auditory source width of sound events is explored. To this end, a computational, modular framework for spatial audio analysis is developed and applied as a prediction tool on synthetically rendered spatial sound fields. The primary focus is to develop a binaural fusion model, and more generally, a model of spatial hearing with immediate practical application to objective, spatial sound-localization predictions for arbitrary multi-channel and/or headphone-based spatial audio synthesis schemes. The binaural model and overall framework may serve as useful tools for the analysis and design of spatial audio experiences for virtual and augmented reality systems. The framework also may be employed as a convenient alternative to the direct use of human participants in listening experiments, and as such may serve as a tool in the development of spatial audio rendering systems. Utilizing a computational binaural auditory model as its front-end, the framework is composed of a series of modular signal processing blocks designed to simulate the peripheral and central stages of the human auditory system. The present implementation of the binaural fusion model builds upon the Meddis hair cell model for the peripheral stages and coincidence detection of delay-line activity patterns (the Jeffress model) for the central processing stage. However, the overall framework is intended to be modular and not model specific. Additionally, signals are processed using a gammatone filter bank to produce an interaural coherence function; a short-time windowed cross-correlation of the binaural signals in each gammatone filter band. These interaural coherence functions collectively produce a binaural activity representation, called a 'correlogram', from which the perceived auditory image location and its spatial extent may be inferred. A dictionary of basis correlograms corresponding to measured sound source locations in three-dimensional space is generated and then used to compare the rendering precision and accuracy of virtual auditory images produced using first order and higher order Ambisonics (FOA and HOA). A form of regularized regression, called an elastic net, is used to infer the spatial and psychoacoustic properties of the virtual acoustic source. The final output of the framework is a predictive metric representing the perceived location and ?width' of an acoustic source in 3D space"--Pages viii-ix.
Download or read book Virtual Auditory Space written by Simon Carlile and published by Landes Bioscience. This book was released on 1996 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sound Synthesis Propagation and Rendering written by Shiguang Liu and published by Morgan & Claypool Publishers. This book was released on 2022-03-24 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a broad overview of research on sound simulation driven by a variety of applications. Vibrating objects produce sound, which then propagates through a medium such as air or water before finally being heard by a listener. As a crucial sensory channel, sound plays a vital role in many applications. There is a well-established research community in acoustics that has studied the problems related to sound simulation for six decades. Some of the earliest work was motivated by the design of concert halls, theaters, or lecture rooms with good acoustic characteristics. These problems also have been investigated in other applications, including noise control and sound design for urban planning, building construction, and automotive applications. Moreover, plausible or realistic sound effects can improve the sense of presence in a virtual environment or a game. In these applications, sound can provide important clues such as source directionality and spatial size. The book first surveys various sound synthesis methods, including harmonic synthesis, texture synthesis, spectral analysis, and physics-based synthesis. Next, it provides an overview of sound propagation techniques, including wave-based methods, geometric-based methods, and hybrid methods. The book also summarizes various techniques for sound rendering. Finally, it surveys some recent trends, including the use of machine learning methods to accelerate sound simulation and the use of sound simulation techniques for other applications such as speech recognition, source localization, and computer-aided design.
Download or read book Handbook of Signal Processing Systems written by Shuvra S. Bhattacharyya and published by Springer Science & Business Media. This book was released on 2010-09-10 with total page 1099 pages. Available in PDF, EPUB and Kindle. Book excerpt: It gives me immense pleasure to introduce this timely handbook to the research/- velopment communities in the ?eld of signal processing systems (SPS). This is the ?rst of its kind and represents state-of-the-arts coverage of research in this ?eld. The driving force behind information technologies (IT) hinges critically upon the major advances in both component integration and system integration. The major breakthrough for the former is undoubtedly the invention of IC in the 50’s by Jack S. Kilby, the Nobel Prize Laureate in Physics 2000. In an integrated circuit, all components were made of the same semiconductor material. Beginning with the pocket calculator in 1964, there have been many increasingly complex applications followed. In fact, processing gates and memory storage on a chip have since then grown at an exponential rate, following Moore’s Law. (Moore himself admitted that Moore’s Law had turned out to be more accurate, longer lasting and deeper in impact than he ever imagined. ) With greater device integration, various signal processing systems have been realized for many killer IT applications. Further breakthroughs in computer sciences and Internet technologies have also catalyzed large-scale system integration. All these have led to today’s IT revolution which has profound impacts on our lifestyle and overall prospect of humanity. (It is hard to imagine life today without mobiles or Internets!) The success of SPS requires a well-concerted integrated approach from mul- ple disciplines, such as device, design, and application.
Download or read book MultiMedia Modeling written by Laurent Amsaleg and published by Springer. This book was released on 2016-12-30 with total page 523 pages. Available in PDF, EPUB and Kindle. Book excerpt: The two-volume set LNCS 10132 and 10133 constitutes the thoroughly refereed proceedings of the 23rd International Conference on Multimedia Modeling, MMM 2017, held in Reykjavik, Iceland, in January 2017. Of the 149 full papers submitted, 36 were selected for oral presentation and 33 for poster presentation; of the 34 special session papers submitted, 24 were selected for oral presentation and 2 for poster presentation; in addition, 5 demonstrations were accepted from 8 submissions, and all 7 submissions to VBS 2017. All papers presented were carefully reviewed and selected from 198 submissions. MMM is a leading international conference for researchers and industry practitioners for sharing new ideas, original research results and practical development experiences from all MMM related areas, broadly falling into three categories: multimedia content analysis; multimedia signal processing and communications; and multimedia applications and services.
Download or read book Spatial Auditory Human Computer Interfaces written by Jaka Sodnik and published by Springer. This book was released on 2015-09-03 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on a special group of auditory interfaces using spatial sound for the representation of information. The addition of information on the location of a selected sound source or a group of sources shows many advantages over a mere single-channel audio. This survey explains the most important limitations of the human hearing system and the perception of spatial sound. It also includes some technical background and basic processing and programming techniques for the creation and reproduction of spatial sounds with different audio equipment. Spatial auditory interfaces have evolved significantly in the last couple of years and can be found in a variety of environments where visual communication is obstructed or completely blocked by other activities, such as walking, driving, flying, operating multimodal virtual displays, etc. An entire chapter of this survey is dedicated to the most important areas of spatial auditory displays: mobile devices and computers, virtual environments, aircrafts and vehicles, visually impaired and blind computers users, and brain-computer interfaces.
Download or read book The Engineering of Mixed Reality Systems written by Emmanuel Dubois and published by Springer Science & Business Media. This book was released on 2009-10-21 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: An increasing number of systems are exploiting mixed reality but to date there are no systematic methods, techniques or guidelines for the development of such systems. In bringing together contributions on a broad range of mixed reality development issues this book provides a sound theoretical foundation for a disciplined approach to mixed reality engineering. Divided into three parts: interaction design, software design and implementation, the first section covers generic and specific mixed reality design elements and provides an overview of the design method; Part 2 addresses technical solutions for interaction techniques, development tools and a global view of the mixed reality software development process. The final section contains detailed case studies to highlight the application of mixed reality in a variety of fields including aviation, architecture, emergency management, games, and healthcare.
Download or read book Principles and Applications of Spatial Hearing written by Yôiti Suzuki and published by World Scientific Publishing Company Incorporated. This book was released on 2011 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: Section 3. Capturing and controlling the spatial sound field. A study on 3D sound image control by two loudspeakers located in the transverse plane / K. Iida, T. Ishii, and Y. Ishii. Selective listening point audio based on blind signal separation and 3D audio effect / T. Nishino [und weitere]. Selective listening point audio based on blind signal separation and 3D audio effect / T. Nishino. Sweet spot size in virtual sound reproduction : A temporal analysis / Y. Lacouture Parodi and P. Rubak. Psychoacoustic evaluation of different methods for creating individualized, headphone-presented virtual auditory space from B-format room impulse responses / A. Kan, C. Jin, and A. van Schaik. Effects of microphone arrangements on the accuracy of a spherical microphone array (SENZI) in acquiring high-definition 3D sound space information / J. Kodama [und weitere]. Perception-based reproduction of spatial sound with directional audio coding / V. Pulkki [und weitere]. Capturing and recreating auditory virtual reality / R. Duraiswami [und weitere]. Reconstructing sound source directivity in virtual acoustic environments / M. Noisternig, F. Zotter, and B.F.G. Katz. Implementation of real-time room auralization using a surrounding loudspeaker array / T. Okamoto [und weitere]. Spatialisation in audio augmented reality using finger snaps / H. Gamper and T. Lokki. Generation of sound ball : Its theory and implementation / Y.-H. Kim [und weitere]. Estimation of high-resolution sound properties for realizing an editable sound-space system / T. Okamoto, Y. Iwaya, and Y. Suzuki -- Section 4. Applying virtual sound techniques in the real world. Binaural hearing assistance system based on frequency domain binaural model / T. Usagawa and Y. Chisaki. A spatial auditory display for telematic music performances / J. Braasch [und weitere]. Auditory orientation training system developed for blind people using PC-based wide-range 3-D sound technology / Y. Seki [und weitere]. Mapping musical scales onto virtual 3D spaces / J. Villegas and M. Cohen. Sonifying head-related transfer unctions / D. Cabrera and W.L. Martens. Effects of spatial cues on detectability of alarm signals in noisy environments / N. Kuroda [und weitere]. Binaural technique for active noise control assessment / Y. Watanabe and H. Hamada
Download or read book The Bloomsbury Handbook of Music Production written by Simon Zagorski-Thomas and published by Bloomsbury Publishing USA. This book was released on 2020-02-06 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Bloomsbury Handbook of Music Production provides a detailed overview of current research on the production of mono and stereo recorded music. The handbook consists of 33 chapters, each written by leaders in the field of music production. Examining the technologies and places of music production as well the broad range of practices – organization, recording, desktop production, post-production and distribution – this edited collection looks at production as it has developed around the world. In addition, rather than isolating issues such as gender, race and sexuality in separate chapters, these points are threaded throughout the entire text.
Download or read book The Wiley Handbook of Human Computer Interaction Set written by Kent Norman and published by John Wiley & Sons. This book was released on 2017-12-28 with total page 1043 pages. Available in PDF, EPUB and Kindle. Book excerpt: In der Vergangenheit war die Mensch-Computer-Interaktion (Human-Computer Interaction) das Privileg einiger weniger. Heute ist Computertechnologie weit verbreitet, allgegenwärtig und global. Arbeiten und Lernen erfolgen über den Computer. Private und kommerzielle Systeme arbeiten computergestützt. Das Gesundheitswesen wird neu erfunden. Navigation erfolgt interaktiv. Unterhaltung kommt aus dem Computer. Als Antwort auf immer leistungsfähigere Systeme sind im Bereich der Mensch-Computer-Interaktion immer ausgeklügeltere Theorien und Methodiken entstanden. The Wiley Handbook of Human-Computer Interaction bietet einen Überblick über all diese Entwicklungen und untersucht die vielen verschiedenen Aspekte der Mensch-Computer-Interaktion und hat den Wert menschlicher Erfahrungen, die über Technologie stehen, ganzheitlich im Blick.
Download or read book Human Computer Interaction Theoretical Approaches and Design Methods written by Masaaki Kurosu and published by Springer Nature. This book was released on 2022-06-16 with total page 660 pages. Available in PDF, EPUB and Kindle. Book excerpt: The three-volume set LNCS 13302, 13303 and 13304 constitutes the refereed proceedings of the Human Computer Interaction thematic area of the 24th International Conference on Human-Computer Interaction, HCII 2022, which took place virtually in June-July 2022. The 132 papers included in this HCI 2022 proceedings were organized in topical sections as follows: Part I: Theoretical and Multidisciplinary Approaches in HCI; Design and Evaluation Methods, Techniques and Tools; Emotions and Design; and Children-Computer Interaction, Part II: Novel Interaction Devices, Methods and Techniques; Text, Speech and Image Processing in HCI; Emotion and Physiological Reactions Recognition; and Human-Robot Interaction, Part III: Design and User Experience Case Studies, Persuasive Design and Behavioral Change; and Interacting with Chatbots and Virtual Agents.
Download or read book Creation of a System for Real Time Virtual Auditory Space and Its Application to Dynamic Sound Localization written by Jacob William Scarpaci and published by . This book was released on 2006 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: The study of sound localization has historically been done using stationary sources with no head movement, in part due to technological constraints. One way of studying sound localization is to use virtual auditory space (VAS) stimuli; in this approach a filtered sound is presented over headphones with the filter designed to create eardrum pressures that match those created by a loudspeaker located in real space. These filters, called spatialization filters, are designed to simulate a sound-source in an arbitrary location. This thesis used VAS stimuli to explore how movement of the head or sound source can affect the perceived location of a sound. There are three parts to this thesis: (1) the creation of a system capable of rendering dynamic auditory scenes; (2) the development of effective spatialization filters that account for movement of the sound source relative to the head; and (3) an investigation into how subjects perform in tasks that utilize dynamic auditory stimuli. In the system design, two key aspects were the ability to change the spatialization filters dynamically and the small system delay between a head movement and the corresponding update to the filter. The key issue related to the use of Head Related Transfer Functions (HRTFs) as spatialization filters was the requirement of a smooth percept as the virtual source moves, in particular the interpolation between measured HRTFs. A set of human listening experiments were conducted to study several aspects of the perception of dynamic stimuli. Specifically, reaction times in response to dynamic sound stimuli as well as the subject's ability to follow a moving virtual source were measured. Measurements of system performance showed that a cost effective, flexible, and open-source system could be developed that is capable of dynamic simulations with system delays less than 7 ms. In dynamic experiments, auditory perception was found to be affected by shorter system delays then previously thought relevant. Human tracking data were obtained and used to develop a model that describes a subject's interaction with spatially dynamic sound sources.
Download or read book Spatial Audio written by Woon Seng Gan and published by MDPI. This book was released on 2018-03-23 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a printed edition of the Special Issue "Spatial Audio" that was published in Applied Sciences
Download or read book Proceedings written by and published by . This book was released on 2003 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatial Hearing written by Jens Blauert and published by MIT Press. This book was released on 1997 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of spatial hearing has exploded in the decade or so since Jens Blauert's classic work on acoustics was first published in English. This revised edition adds a new chapter that describes developments in such areas as auditory virtual reality (an important field of application that is based mainly on the physics of spatial hearing), binaural technology (modeling speech enhancement by binaural hearing), and spatial sound-field mapping. The chapter also includes recent research on the precedence effect that provides clear experimental evidence that cognition plays a significant role in spatial hearing.The remaining four chapters in this comprehensive reference cover auditory research procedures and psychometric methods, spatial hearing with one sound source, spatial hearing with multiple sound sources and in enclosed spaces, and progress and trends from 1972 (the first German edition) to 1983 (the first English edition) -- work that includes research on the physics of the external ear, and the application of signal processing theory to modeling the spatial hearing process. There is an extensive bibliography of more than 900 items.
