Title :
Examining the effects of room response in oversampled, subband acoustic echo cancelers
Author :
De León, Phillip L., II ; Etter, Delores M.
Author_Institution :
Dept. of Electr. Eng., Colorado Univ., Boulder, CO, USA
fDate :
Oct. 30 1995-Nov. 1 1995
Abstract :
We examine the effects of the room response on the convergence of oversampled, subband acoustic echo cancelers. Specifically, we have observed that spectral features of the room response such as peaks or nulls have definite and measurable effects an the convergence of the subband MSE which in turn has an effect on the reconstructed MSE. These effects can be traced back to slow converging spectral components located at the analysis filter band edge.
Keywords :
signal sampling; analysis filter band edge; convergence; nulls; oversampled echo cancelers; peaks; reconstructed MSE; room response; slow converging spectral components; spectral features; subband MSE; subband acoustic echo cancelers; subband adaptive filter system; Acoustic applications; Acoustic measurements; Adaptive filters; Adaptive systems; Algorithm design and analysis; Convergence; Echo cancellers; Eigenvalues and eigenfunctions; Least squares approximation; Low pass filters;
Conference_Titel :
Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on
Conference_Location :
Pacific Grove, CA, USA
Print_ISBN :
0-8186-7370-2
DOI :
10.1109/ACSSC.1995.540592
