Improved Performance for Stereophonic Acoustic Echo Cancellation using Subband Structure

Author

Krittayanun, Boonchai ; Tangsangiumvisai, Nisachon

Author_Institution

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

fYear

2005

fDate

21-24 Nov. 2005

Firstpage

1

Lastpage

5

Abstract

An adaptive filtering approach is proposed in this paper for stereophonic acoustic echo cancellation (SAEC) in order to obtain convergence rate improvement and computational complexity reduction. 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 adaptive filtering. Simulation results on speech signals suggest that enhanced performance in terms of rate of convergence can be achieved at low computational cost.

Keywords

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

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2005 2005 IEEE Region 10

Conference_Location

Melbourne, Qld.

Print_ISBN

0-7803-9311-2

Electronic_ISBN

0-7803-9312-0

Type

conf

DOI

10.1109/TENCON.2005.301194

Filename

4085043