View in EDS

A Computationally-Efficient and Perceptually-Plausible Algorithm for Binaural Room Impulse Response Simulation.

Saved in:
Bibliographic Details
Title: A Computationally-Efficient and Perceptually-Plausible Algorithm for Binaural Room Impulse Response Simulation.
Authors: WENDT, TORBEN1,2 torben.wendt@uni-oldenburg.de, VAN DE PAR, STEVEN1 steven.van.de.par@uni-oldenburg.de, EWERT, STEPHAN D.2 stephan.ewert@uni-oldenburg.de
Source: AES Journal of the Audio Engineering Society: Audio, Acoustics, Applications. Nov2014, Vol. 62 Issue 11, p748-766. 19p.
Subjects: Acoustical engineering software, Acoustical engineering conferences, Sound reverberation, Plausibility (Logic), Acoustic imaging, Acoustic models, Video games
Abstract: A fast and perceptually-plausible binaural room reverberation rendering method is presented, suited for application in interactive evaluation environments, e.g., for hearing aid development, and for psychophysical studies, room simulation, and computer games. A hybrid approach was used to achieve a high computational efficiency and perceptual plausibility: early reflections up to a restricted low order were calculated by the image source model (ISM; Allen and Berkley [J. Acoust. Soc. Am. Vol. 66(4), 1979]). The simulation of the reverberant tail was based on a feedback delay network (FDN; Jot and Chaigne [Proc. 90th AES Conv., 1991]), which is computationally very efficient and allows explicit control of the frequency-dependent decay characteristics. The FDN approach was modified to be adaptable to room dimensions and to different wall absorption coefficients. Furthermore, it was extended to create spatially distributed reverberation for arbitrary source positions as well as arbitrary receiver orientation and position, using head related impulse responses. To evaluate the simulation method, binaural room impulse responses were measured and synthesized for various rooms. Subjective ratings of perceived room acoustical attributes, and assessment of various common room acoustical parameters, generally showed a good correspondence between simulated and real rooms. [ABSTRACT FROM AUTHOR]
Copyright of AES Journal of the Audio Engineering Society: Audio, Acoustics, Applications is the property of Audio Engineering Society and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:A fast and perceptually-plausible binaural room reverberation rendering method is presented, suited for application in interactive evaluation environments, e.g., for hearing aid development, and for psychophysical studies, room simulation, and computer games. A hybrid approach was used to achieve a high computational efficiency and perceptual plausibility: early reflections up to a restricted low order were calculated by the image source model (ISM; Allen and Berkley [J. Acoust. Soc. Am. Vol. 66(4), 1979]). The simulation of the reverberant tail was based on a feedback delay network (FDN; Jot and Chaigne [Proc. 90th AES Conv., 1991]), which is computationally very efficient and allows explicit control of the frequency-dependent decay characteristics. The FDN approach was modified to be adaptable to room dimensions and to different wall absorption coefficients. Furthermore, it was extended to create spatially distributed reverberation for arbitrary source positions as well as arbitrary receiver orientation and position, using head related impulse responses. To evaluate the simulation method, binaural room impulse responses were measured and synthesized for various rooms. Subjective ratings of perceived room acoustical attributes, and assessment of various common room acoustical parameters, generally showed a good correspondence between simulated and real rooms. [ABSTRACT FROM AUTHOR]
ISSN:15494950
DOI:10.17743/jaes.2014.0042