11th Annual Conference of the International Speech Communication Association

Makuhari, Chiba, Japan
September 26-30. 2010

Perceptual Compensation for Effects of Reverberation in Speech Identification: A Computer Model Based on Auditory Efferent Processing

Amy V. Beeston, Guy J. Brown

University of Sheffield, UK

Human speech perception is remarkably robust to the effects of reverberation, due in part to mechanisms of perceptual constancy that compensate for the characteristics of the acoustic environment. A computer model of this phenomenon is described, which shows compensation for the effects of reverberation in a word identification task. The presence of reverberation is detected as a change in the mean-to-peak ratio of the simulated auditory nerve response. In turn, this leads to attenuation of peripheral auditory activity, which is achieved through an efferent feedback loop. The computer model provides a qualitative match to a range of perceptual data, suggesting that auditory mechanisms under efferent control might contribute to compensation for reverberation in particular speech identification tasks.

Full Paper

Bibliographic reference.  Beeston, Amy V. / Brown, Guy J. (2010): "Perceptual compensation for effects of reverberation in speech identification: a computer model based on auditory efferent processing", In INTERSPEECH-2010, 2462-2465.