Acoustic Echo Cancellation for Microphone Arrays using Switched Coefficient Vectors

Authors:

Martin, R. ,  Gustafsson, S. ,  Moser, M.

Book Title:

Proceedings of International Workshop on Acoustic Echo and Noise Control (IWAENC)

Organization:

n.n.

Pages:

p.p. 85-88

Address:

London, Great Britain

Date:

Sep. 1997

Language:

English

Abstract

In this contribution we propose and experimentally verify an algorithm for the cancellation of acoustic echoes for signals derived from a beamforming microphone array. Almost independent of the number of microphones, this algorithm has the computational complexity of only a single echo canceller. Experimental results show that after a brief training period the new approach can outperform the computationally expensive conventional approach, where one echo canceller is used for each of the microphones.

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