A virtual auditory environment for investigating the auditory signal processing of realistic sounds

Sylvain Emmanuel Favrot, Jörg Buchholz

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Abstract

In the present study, a novel multichannel loudspeaker-based virtual auditory environment (VAE) is introduced. The VAE aims at providing a versatile research environment for investigating the auditory signal processing in real environments, i.e., considering multiple sound sources and room reverberation. The environment is based on the ODEON room acoustic simulation software to render the acoustical scene. ODEON outputs are processed using a combination of different order Ambisonic techniques to calculate multichannel room impulse responses (mRIR). Auralization is then obtained by the convolution of the mRIR with an acoustic signal. The derivation of the mRIRs takes into account that (i) auditory localization is most sensitive to the location of the direct sound and (ii) that auditory localization performance is rather poor for early reflections and even worse for late reverberation. Throughout the VAE development, special care was taken in order to achieve a realistic auditory percept and to avoid “artifacts” such as unnatural coloration. The performance of the VAE has been evaluated and optimized on a 29 loudspeaker setup using both objective and subjective measurement techniques.
Original languageEnglish
JournalJournal of the Acoustical Society of America
Volume123
Issue number5
Pages (from-to)3935-3935
ISSN0001-4966
DOIs
Publication statusPublished - 2008
EventAcoustics'08 - Paris, France
Duration: 29 Jun 20084 Jul 2008
http://webistem.com/acoustics2008/acoustics2008/cd1/data/index.html

Conference

ConferenceAcoustics'08
CountryFrance
CityParis
Period29/06/200804/07/2008
Internet address

Bibliographical note

Copyright (2008) Acoustical Society of America. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the Acoustical Society of America.

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