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Efficient Implementation Of Head Related Transfer Functions For Auditory Virtual Reality
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Book Synopsis Efficient Implementation of Head-related Transfer Functions for Auditory Virtual Reality by : Gregory C. White
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:
Book Synopsis Head-Related Transfer Function and Acoustic Virtual Reality by : Kazuhiro Iida
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.
Book Synopsis Head-related Transfer Function and Virtual Auditory Display by : Bosun Xie
Download or read book Head-related Transfer Function and Virtual Auditory Display written by Bosun Xie and published by . This book was released on 2013 with total page 501 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Binaural Technology for Virtual Reality by : Tobias Lentz
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.
Book Synopsis Virtual Auditory Space by : Simon Carlile
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:
Book Synopsis A Comparison of Various Types of Head-Related Transfer Functions for 3-D Sound in the Virtual Environment by :
Download or read book A Comparison of Various Types of Head-Related Transfer Functions for 3-D Sound in the Virtual Environment written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Simulation using virtual reality (VR) is becoming an effective tool for the Army in training soldiers to do their required tasks. In VR, the human operator can interact with a wide variety of computer generated worlds developed from real or imaginary scenarios or both. The training that a soldier receives by simulation is usually cost effective to the Army and in a number of cases is safer for the individual than training in the real environment. Three dimensional (3-D) sound in the virtual environment (VE) provides a more realistic simulation of acoustic environments compared to diotic (mono) or dichotic (stereo) sound presentation. The major benefit of using 3-D sound is that an individual can determine the sound source direction. When sounds that are perceived to have direction and sights that represent virtual objects that produce the sounds are provided through a head mounted display, a person can monitor and identify sources of information from all possible locations. The purpose of this study was to determine if 3-D sound generated by a 3-D sound system could enhance the realism or fidelity of the VE. The main objective of the study was to determine if an individual could distinguish the direction of a sound source within a reasonable degree of accuracy. Three dimensional sound is produced by using a mathematical representation of the filtering characteristics of the pinnae provided through head related transfer functions (HRTFs). The HRTFs can be developed by recording a generated broadband sound using a probe microphone in the ear canal and subsequently dividing the Fourier transform of the recorded sound by that of the generated sound. When digital filtering techniques are used, HRTFs can be applied to sounds through headphones. When an arbitrary sound is filtered with HRTF based filters, the sound should appear to come from specified virtual locations outside the earphones.
Book Synopsis Head-Related Transfer Function and Virtual Auditory Display by : Bosun Xie
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.
Book Synopsis Usability Evaluation and Interface Design by : Michael J. Smith
Download or read book Usability Evaluation and Interface Design written by Michael J. Smith and published by CRC Press. This book was released on 2001-08-01 with total page 1610 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three volume set provides the complete proceedings of the Ninth International Conference on Human-Computer Interaction held August, 2001 in New Orleans. A total of 2,738 individuals from industry, academia, research institutes, and governmental agencies from 37 countries submitted their work for presentation at the conference. The papers address the latest research and application in the human aspects of design and use of computing systems. Those accepted for presentation thoroughly cover the entire field of human-computer interaction, including the cognitive, social, ergonomic, and health aspects of work with computers. The papers also address major advances in knowledge and effective use of computers in a variety of diversified application areas, including offices, financial institutions, manufacturing, electronic publishing, construction, and health care.
Book Synopsis Anthropometric Individualization of Head-Related Transfer Functions Analysis and Modeling by : Ramona Bomhardt
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.
Book Synopsis Head-Related Transfer Functions and Virtual Auditory Display by : Xiao-li Zhong
Download or read book Head-Related Transfer Functions and Virtual Auditory Display written by Xiao-li Zhong and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Head-Related Transfer Functions and Virtual Auditory Display.
Book Synopsis Soundscape Semiotics by : Hervé Glotin
Download or read book Soundscape Semiotics written by Hervé Glotin and published by BoD – Books on Demand. This book was released on 2014-03-05 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Book Soundscape Semiotics - Localization and Categorization is a research publication that covers original research on developments within the Soundscape Semiotics field of study. The book is a collection of reviewed scholarly contributions written by different authors. Each scholarly contribution represents a chapter and each chapter is complete in itself but related to the major topics and objectives. The chapters included in the book are divided in two section. First section - Advanced Signal Processing Methodologies for Soundscape Analysis contains 5 chapters, and second section - Human Hearing Estimations and Cognitive Soundscape Analysis 3 chapters. The target audience comprises scholars and specialists in the field.
Book Synopsis Virtual Acoustics and 3-D Sound in Multimedia Signal Processing by : Jyri Huopaniemi
Download or read book Virtual Acoustics and 3-D Sound in Multimedia Signal Processing written by Jyri Huopaniemi and published by . This book was released on 1999 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 3D Sound Synthesis Using the Head Related Transfer Function by :
Download or read book 3D Sound Synthesis Using the Head Related Transfer Function written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Three-dimensional (3D) sound is a significant component of virtual reality. 3D sound systems or directional sound systems are designed to animate the sound space produced by real sound sources. In this thesis, basic concepts of 3D sound are introduced. The Head Related Transfer Functions (HRTFs) are analyzed in both the time and frequency domain. A 3D sound system is implemented using practical, measured HRTF data.
Book Synopsis 3-D Sound for Virtual Reality and Multimedia by : Durand R. Begault
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:
Book Synopsis The Relative Impact of Generic Head-Related Transfer Functions and Signal Bandwidth on Auditory Localization: Implications for the Design of Three-Dimensional Audio Displays by :
Download or read book The Relative Impact of Generic Head-Related Transfer Functions and Signal Bandwidth on Auditory Localization: Implications for the Design of Three-Dimensional Audio Displays written by and published by . This book was released on 2000 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Virtual auditory technology is being considered to cue armoured vehicle or air crew, via headphones of the communication system, to the spatial locations of potential lethal threats. Auditory localization in virtual auditory space (VAS) on the horizontal plane was investigated in this paper as a function of seven generic head-related transfer functions (i.e., digital filters for synthesizing the location of a sound in VAS), signal bandwidth (low-pass 3 kHz, high-pass 3 kHz and low-pass 14 kHz), and listening environment (quiet and in the presence of diffuse ambient Leopard tank noise). Testing was also conducted in the free-field which partially served to psychoacoustically validate the VAS conditions. The outcome of this preliminary study revealed that subject performance was better in free-field than in VAS. In the latter condition, subject performance was not significantly affected by type of generic head-related transfer function. Localization accuracy using the broadband stimulus was not significantly better than with the low-pass 3 kHz stimulus. Performance in the quiet condition was relatively better than in the noise condition. The implications of these results for implementation of a 3-D audio display into military environments and recommendations for future research are discussed.
Book Synopsis New Realities in Audio by : Stephan Schütze
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.
Book Synopsis Virtual Reality by : National Research Council
Download or read book Virtual Reality written by National Research Council and published by National Academies Press. This book was released on 1995-01-13 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite widespread interest in virtual reality, research and development efforts in synthetic environments (SE)â€"the field encompassing virtual environments, teleoperation, and hybridsâ€"have remained fragmented. Virtual Reality is the first integrated treatment of the topic, presenting current knowledge along with thought-provoking vignettes about a future where SE is commonplace. This volume discusses all aspects of creating a system that will allow human operators to see, hear, smell, taste, move about, give commands, respond to conditions, and manipulate objects effectively in a real or virtual environment. The committee of computer scientists, engineers, and psychologists on the leading edge of SE development explores the potential applications of SE in the areas of manufacturing, medicine, education, training, scientific visualization, and teleoperation in hazardous environments. The committee also offers recommendations for development of improved SE technology, needed studies of human behavior and evaluation of SE systems, and government policy and infrastructure.
