A NOVEL APPROACH TO CHANNEL DECORRELATION FOR STEREO ACOUSTIC ECHO CANCELLATION BASED ON MISSING FUNDAMENTAL THEORY

被引：11

作者：

Romoli, L. ^{[1
]}

Cecchi, S. ^{[1
]}

Palestini, L. ^{[1
]}

Peretti, P. ^{[1
]}

Piazza, F. ^{[1
]}

机构：

[1] Univ Politecn Marche, A3Lab, DIBET, I-60131 Ancona, Italy

来源：

2010 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2010年

关键词：

Channel decorrelation; Missing fundamental; Stereophonic Acoustic Echo Cancellation; ENHANCEMENT;

D O I：

10.1109/ICASSP.2010.5495884

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

Decorrelation is a well known issue in the context of Stereophonic Acoustic Echo Cancellation: it is related to the problem of uniquely identifying each pair of room acoustic paths, due to high inter-channel coherence. In this paper, a novel approach to decorrelate a stereo signal based on the missing fundamental phenomenon is proposed. An adaptive algorithm is employed to track the behavior of one of the two channels, ensuring a continuous decorrelation without affecting the stereo quality. Several results are presented comparing our approach with Masked Noise injection method in terms of Magnitude Square Coherence, Itakura Saito measure and Convergence Speed of adaptive filters in order to confirm the validity of the proposed approach.

引用

页码：329 / 332

页数：4

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