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Convention Paper

Acoustic Echo Cancellation Using MIMO Blind Deconvolution

Authors: Gower, Ephraim; Hawksford, Malcolm

AES Convention 126 · Paper 7804 · May 2009

Abstract

A new multiple-input multiple-output frame-processing algorithm is introduced that exploits blind deconvolution for acoustic echo cancellation. The channel deconvolution filters, which can be blindly estimated as either finite impulse or infinite impulse responses, are optimized by maximizing the information flow through several non-linear neurons. The algorithm requires that for every system audio output there be a corresponding microphone for effective feedback signal separation/cancellation. The desired talker signal from the algorithm outputs is recognized and transmitted while the identified feedback signals are discarded.

Details

Published in
AES Convention 126
AES Convention
126
Paper number
7804
Publication date
May 6, 2009
Session subject
Signal Processing
Affiliation
University of Essex, Colchester, UK (See document for exact affiliation information.)
Type
Convention Paper