On performance improvement of stereophonic acoustic echo cancellation through the use of hybrid structure

Author

Krittayanun, B. ; Tangsangiumvisai, N.

Author_Institution

Dept. of Electr. Eng., Chulalongkorn Univ., Bangkok, Thailand

fYear

2005

fDate

7-10 Aug. 2005

Firstpage

1863

Abstract

This paper proposes an adaptive filtering algorithm for stereophonic acoustic echo cancellation (SAEC) in order to obtain computational complexity reduction and convergence rate improvement. The hybrid mono/stereo structure between fast affine projection (FAP) and frequency-domain normalized least mean square (F-NLMS) algorithms is introduced, based on subband processing. Simulation results on recorded speech signals suggest that convergence rate can be improved at low computational cost.

Keywords

adaptive filters; affine transforms; computational complexity; convergence of numerical methods; echo suppression; least mean squares methods; speech processing; adaptive filtering algorithm; computational complexity reduction; convergence rate improvement; fast affine projection; frequency-domain normalized least mean square algorithms; hybrid structure; speech signals; stereophonic acoustic echo cancellation; subband processing; Adaptive filters; Computational complexity; Computational efficiency; Computational modeling; Convergence; Echo cancellers; Filtering algorithms; Financial advantage program; MONOS devices; Speech;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. 48th Midwest Symposium on

Print_ISBN

0-7803-9197-7

Type

conf

DOI

10.1109/MWSCAS.2005.1594487

Filename

1594487