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Efficient and accurate room acoustics simulation for binaural signal processing


Schimmel, S M; Müller, M; Dillier, N (2008). Efficient and accurate room acoustics simulation for binaural signal processing. In: Sprachkommunikation 2008 - Beiträge der 8. ITG-Fachtagung, Aachen, Germany, 8 October 2008 - 10 October 2008, 1-4.

Abstract

Binaural signal processing algorithms for hearing aids are often first evaluated on binaural signals that are synthesized by a room acoustics simulator. This eliminates the need to acquire real binaural room impulse responses during the design phase, which would be time-consuming. Moreover, it gives more control over the binaural signals and avoids acoustic noise. Room acoustics simulators, however, are computationally very intensive, and their complexity and level of realism is usually reduced to make them usable for research purposes. In this paper, we give a brief overview of existing room acoustics simulation methods. Next, we investigate how accurate room acoustics simulators must be in order to be perceptually convincing, and to be a valid substitute for real measurements. Finally, we propose a room acoustics simulator that is sufficiently realistic and computationally efficient for research into binaural signal processing algorithms.

Abstract

Binaural signal processing algorithms for hearing aids are often first evaluated on binaural signals that are synthesized by a room acoustics simulator. This eliminates the need to acquire real binaural room impulse responses during the design phase, which would be time-consuming. Moreover, it gives more control over the binaural signals and avoids acoustic noise. Room acoustics simulators, however, are computationally very intensive, and their complexity and level of realism is usually reduced to make them usable for research purposes. In this paper, we give a brief overview of existing room acoustics simulation methods. Next, we investigate how accurate room acoustics simulators must be in order to be perceptually convincing, and to be a valid substitute for real measurements. Finally, we propose a room acoustics simulator that is sufficiently realistic and computationally efficient for research into binaural signal processing algorithms.

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Additional indexing

Contributors:Laboratory for Experimental Audiology (LEA), ORL-Clinic, University Hospital Zurich
Item Type:Conference or Workshop Item (Paper), not refereed, original work
Communities & Collections:04 Faculty of Medicine > University Hospital Zurich > Clinic for Otorhinolaryngology
Dewey Decimal Classification:610 Medicine & health
Language:English
Event End Date:10 October 2008
Deposited On:16 Feb 2009 10:01
Last Modified:10 Aug 2017 22:12
Publisher:VDE Verlag GmbH
Number of Pages:4
ISBN:978-3-8007-3120-6
Additional Information:ITG-Fachbericht Band 211
Official URL:http://www.vde-verlag.de/data/prcd.php?docid=453120073&loc=de

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