Nonlinear loudspeaker compensation for hands free acoustic echo cancellation

被引：12
|
作者：
Birkett, AN
Goubran, RA
机构：
[1] Dept. of Syst. and Comp. Engineering, Carleton University, Ottawa, Ont. K1S 5B6
来源：
ELECTRONICS LETTERS | 1996年 / 32卷 / 12期
关键词：
echo suppression; loudspeakers; nonlinear filters; adaptive filters;
D O I：
10.1049/el:19960695
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Loudspeaker nonlinearity at high volumes limits the achievable echo cancellation performance in linear acoustic echo cancellers. A new nonlinear adaptive filter for improving the echo cancellation performance at high volumes for hands free telephones is proposed. Experimental measurements show that an echo cancellation improvement of >8 dB can be obtained at high volumes as compared to a linear adaptive filter.
引用
收藏
页码：1063 / 1064
页数：2
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