DUAL AMPLIFIER AND LOUDSPEAKER COMPENSATION USING FAST CONVERGENT AND CASCADED APPROACHES TO NON-LINEAR ACOUSTIC ECHO CANCELLATION

被引：0

作者：

Mossi, Moctar I. ^{[1
]}

Yemdji, Christelle ^{[1
]}

Evans, Nicholas ^{[1
]}

Beaugeant, Christophe ^{[2
]}

Plante, Fabrice M. ^{[2
]}

Marfouq, Fatimazahra ^{[2
]}

机构：

[1] EURECOM, Sophia Antipolis, France

[2] Intel Mobile Commun, Sophia Antipolis, France

来源：

2012 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP) | 2012年

关键词：

Echo cancellation; non-linear; Volterra; NLMS; decorrelation filtering; clipping compensation; FILTERS;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

This paper focuses on cascaded approaches to non-linear acoustic echo cancellation (AEC) for mobile communications. The contributions in this paper are two-fold. They relate (i) to computationally efficient pre-processing and clipping compensation which aims to improve non-linear modelling and (ii) decorrelation filtering which aims to improve the tracking performance of a conventional linear AEC algorithm. While well-established in the literature the two modules require significant development in order that they function coherently in a cascaded approach. This paper presents new, adaptive parameterisation procedures for both modules and demonstrates significant improvements in terms of echo return loss enhancement when the two modules are combined.

引用

页码：41 / 44

页数：4

共 9 条

[1] NON-LINEAR ACOUSTIC ECHO CANCELLATION USING ONLINE LOUDSPEAKER LINEARIZATION
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Yemdji, Christelle
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2011 IEEE WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS (WASPAA), 2011, : 97 - 100
[2] NON-LINEAR ACOUSTIC ECHO CANCELLATION USING CASCADED KALMAN FILTERING
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[3] ROBUST AND LOW-COST CASCADED NON-LINEAR ACOUSTIC ECHO CANCELLATION
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[4] NON-LINEAR ACOUSTIC ECHO CANCELLATION USING EMPIRICAL MODE DECOMPOSITION
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[6] A comparative assessment of noise and non-linear echo effects in acoustic echo cancellation
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2010 IEEE 10TH INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING PROCEEDINGS (ICSP2010), VOLS I-III, 2010, : 223 - +
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