A fast two-channel projection algorithm for stereophonic acoustic echo cancellation

Author

Amand, Fabrice ; Benesty, Jacob ; Gilloire, André ; Grenier, Yves

Author_Institution

CNET, Lannion, France

Volume

2

fYear

1996

fDate

7-10 May 1996

Firstpage

949

Abstract

We propose a new fast projection algorithm for stereophonic acoustic echo cancellation. This algorithm can be viewed as a generalization of the extended two-channel LMS algorithm which takes into account the correlation between the input signals. Moreover, this algorithm fits naturally with the framework of affine projection techniques extended to the two-channel case. Its computational complexity is less than half the complexity of the fastest two-channel RLS versions. Simulation results show the obtained performance

Keywords

Hi-Fi equipment; acoustic correlation; computational complexity; echo suppression; least mean squares methods; speech processing; telecommunication channels; affine projection techniques; computational complexity; extended two-channel LMS algorithm; fast projection algorithm; fast two-channel projection algorithm; input signals correlation; performance; simulation results; speech processing; stereophonic acoustic echo cancellation; Adaptive filters; Computational complexity; Computational modeling; Covariance matrix; Echo cancellers; Equations; Jacobian matrices; Least squares approximation; Projection algorithms; Telecommunications;

fLanguage

English

Publisher

ieee

Conference_Titel

Acoustics, Speech, and Signal Processing, 1996. ICASSP-96. Conference Proceedings., 1996 IEEE International Conference on

Conference_Location

Atlanta, GA

ISSN

1520-6149

Print_ISBN

0-7803-3192-3

Type

conf

DOI

10.1109/ICASSP.1996.543279

Filename

543279