Title :
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
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;
Conference_Titel :
Circuits and Systems, 2005. 48th Midwest Symposium on
Print_ISBN :
0-7803-9197-7
DOI :
10.1109/MWSCAS.2005.1594487
