Head-related transfer function database and its analyses

Xie, Bosun; Zhong, Xiaoli; Rao, Dan; Liang, Zhiqiang

doi:10.1007/s11433-007-0018-x

Cited by 53 publications

(40 citation statements)

References 9 publications

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“…from 1 to 26, and 26 female with Nos. from 27 to 52) and 493 source directions at source distance of 1.5 m for each subject [24]. The measured directions are uniformly distributed in each elevation.…”

Section: The Baseline Hrtf Database and Pre-processingmentioning

confidence: 99%

Typical data and cluster analysis on head-related transfer functions from Chinese subjects

Xie

Zhong

2015

Applied Acoustics

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Section: The Baseline Hrtf Database and Pre-processingmentioning

confidence: 99%

Typical data and cluster analysis on head-related transfer functions from Chinese subjects

Xie

Zhong

2015

Applied Acoustics

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“…(ii) The individualized far-field HRIRs of Chinese subjects measured by our laboratory [15]. The database was measured by the blocked-ear-canal technique.…”

Section: R E T T R H T E T T Rmentioning

confidence: 99%

Platform for dynamic virtual auditory environment real-time rendering system

Zhang

Xie

2013

Chin. Sci. Bull.

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This paper reports the recent works and progress on a PC and C++ language-based virtual auditory environment (VAE) system platform. By tracing the temporary location and orientation of listener's head and dynamically simulating the acoustic propagation from sound source to two ears, the system is capable of recreating free-field virtual sources at various directions and distances as well as auditory perception in reflective environment via headphone presentation. Schemes for improving VAE performance, including PCA-based (principal components analysis) near-field virtual source synthesis, simulating six degrees of freedom of head movement, are proposed. Especially, the PCA-based scheme greatly reduces the computational cost of multiple virtual sources synthesis. Test demonstrates that the system exhibits improved performances as compared with some existing systems. It is able to simultaneously render up to 280 virtual sources using conventional scheme, and 4500 virtual sources using the PCA-based scheme. A set of psychoacoustic experiments also validate the performance of the system, and at the same time, provide some preliminary results on the research of binaural hearing. The functions of the VAE system is being extended and the system serves as a flexible and powerful platform for future binaural hearing researches and virtual reality applications. Virtual auditory or acoustic environment (VAE) recreates auditory perceptions or events as those would happen in real world by controlling acoustic environment artificially. As a high-technology, VAE interdisciplines the fields of acoustics/physics, signal processing, computer science and human perception. It not only serves as an important experimental tool for the human hearing research, but also constitutes a major part of the multimedia and virtual reality technique. VAE has a lot of potential applications in various fields such as communication, room acoustic design, as well as military and aeronaut training [1]. In real environments, a complex sound field consists of direct sound waves from sound sources and reflected/ scattered sound waves from boundaries. The temporal and spatial characteristics of the sound field capture the information of sources and surrounding environment. The presence of a listener will further disturb the sound field, so that the pressures received by two ears are modified by the scattering, diffraction and reflection of the human anatomical structures. It is just these source direction-dependent scattering, diffraction and reflection that encode the temporal and spatial information of sound field into binaural signals at eardrums. In addition, source or listener's head movement alters the transmission from source to two ears and thereby alters the binaural pressures, which brings dynamic auditory information. Auditory (including high-level nerve) system analyzes and processes the binaural signals and related dynamic information, resulting in spatial auditory perception or events, such as source localization and subjective spatial per...

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“…At present, foreign research institutions for auditory data measurement include MIT Media Lab, University of Wisconsin-Madison and Ames Laboratory Center of NASA, etc. The sole domestic institution is HRFT Database for Chinese specimen established by South China University of Technology [99] .…”

Section: Acquirement and Individualization Of Hrtfmentioning

confidence: 99%

A survey on virtual reality

Zhao

2009

Sci. China Ser. F-Inf. Sci.

109

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Virtual reality (VR) is a scientific method and technology created during the exploration of the nature by human beings to understand, simulate, and better adapt and use the nature. Based on the analysis on the whole process of VR, this paper presents different categories of VR problems and a type of theoretical expression, and abstracts three kinds of scientific and technical problems in VR field. On the basis of foresaid content, this paper also studies current major research objectives, research results and development trend of VR in the aspects of VR modeling method, VR representation technology, human-machine interaction and devices, VR development suites and supporting infrastructure, as well as VR applications. Finally, several theoretical and technical problems that need to be further studied and solved are addressed.virtual reality, modeling, rendering, human-machine interaction, development suite Based on computer science and relevant scientific technologies, virtual reality (VR) produces a digital environment in which visual perception, sense of hearing, and sense of touch are highly similar to those of actual environment within a certain range. With the help of necessary equipment to interact and interfere with objects in a digital environment, users may have feelings and experiences corresponding to those in the actual environment. VR is a scientific technology for understanding or simulating the nature.With the constant development of social productivity and scientific technologies, the VR technology has found more and more applications in various industries. Now VR has become a new science field. This paper presents an overview of the developing process of VR. First we introduce the thoughts and the related research direction of VR, then we discuss the major contents and current situation of VR research in the aspects of VR modeling, VR representation technology, humanmachine interaction and equipment, VR development suite and supporting environment, as well as VR applications, and indicate several problems of the theory and technology.

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Head-related transfer function database and its analyses

Cited by 53 publications

References 9 publications

Typical data and cluster analysis on head-related transfer functions from Chinese subjects

Typical data and cluster analysis on head-related transfer functions from Chinese subjects

Platform for dynamic virtual auditory environment real-time rendering system

A survey on virtual reality

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