About speech and reverberation

[Katia Lebart <K.Lebart@xxxxxxxxxxxx>]

Dear List,

I am currently in the last year of a PhD. I have been working on signal
processing techniques for speech dereverberation. One of the methods I
have developed is a monaural algorithm that uses the exponential decay
of reverberation to attenuate late reverberation. In other words,
reverberation is cancelled out thanks to the fact that it is a noise
comodulated by an exponential decay.

I am quite a layman in psychoacoustics or auditory perception. However,
I would
like to know more on the psychoacoustical plausibility of such a system.

I would be very interrested in any opinion, comment, reference, data,
about this, and in particular about
the possible links between speech perception in reverberation
(performance or mechanisms) and
amplitude comodulation masking release or auditory grouping on the
principle of
"common fate" (in this case common amplitude modulation).

I am looking forward to hearing from you,
Thanks in advance for your help,

Katia Lebart

University of Sussex, England - ENSTBr, France
Tel: (00-44) 1273-606755 (University) Ext. 4271
Fax: (00-44) 1273-678452

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