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

页码：1063 / 1064

页数：2

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