Acoustic Echo and Noise Control
A variable step-size control of adaptation for acoustic echo cancellation filters
Article first published online: 12 SEP 2008
Copyright © 2002 John Wiley & Sons, Ltd.
European Transactions on Telecommunications
Volume 13, Issue 2, pages 85–93, March–April 2002
How to Cite
Pahor, V. and Carini, A. (2002), A variable step-size control of adaptation for acoustic echo cancellation filters. Eur. Trans. Telecomm., 13: 85–93. doi: 10.1002/ett.4460130203
- Issue published online: 12 SEP 2008
- Article first published online: 12 SEP 2008
- Manuscript Received: 19 DEC 2001
This paper presents a low-complexity variable step-size control for acoustic echo cancellation filters. The proposed control method is based on two supplementary adaptive filters with low memory length. The first supplementary filter is used to control the double-talk situations while the second supplementary filter is employed to detect variations of the echo-path impulse response. The variable step-size here derived is independent from die echo coupling loss and from the reverberation time and thus it is suitable for both hands-free and handset terminals.