Title
On The Misalignment Of Stereophonic Acoustic Echo Cancellation With Decorrelation By Resampling
Abstract
It is well established that a decorrelation procedure is required in a multi-channel acoustic echo control system to mitigate the so-called non-uniqueness problem. A recently proposed technique that accomplishes decorrelation by resampling (DBR) has been shown to be advantageous; it achieves a superior performance in the echo reduction gain and offers the possibility of frequency selective decorrelation to further preserve the sound quality of the system. In this paper, we analyze with rigor the performance behavior of DBR in terms of coherence reduction and the resultant misalignment of an adaptive filter. We derive closed-form expressions for the performance bounds and validate the theoretical analysis with simulation.
Year
Venue
Keywords
2013
2013 IEEE WORKSHOP ON APPLICATIONS OF SIGNAL PROCESSING TO AUDIO AND ACOUSTICS (WASPAA)
Multi-channel acoustic echo cancellation, nonuniqueness problem, coherence, misalignment, resampling
Field
DocType
ISSN
Decorrelation,Expression (mathematics),Computer science,Stereophonic sound,Sound quality,Electronic engineering,Coherence (physics),Adaptive filter,Acoustics,Control system,Resampling
Conference
1931-1168
Citations 
PageRank 
References 
0
0.34
10
Authors
4
Name
Order
Citations
PageRank
Jason Wung1164.45
Ted S. Wada2376.37
Mehrez Souden319514.68
Biing-Hwang Juang43388699.72