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

Volume

1

fYear

1995

fDate

Oct. 30 1995-Nov. 1 1995

Firstpage

464

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Signals, Systems and Computers, 1995. 1995 Conference Record of the Twenty-Ninth Asilomar Conference on

Conference_Location

Pacific Grove, CA, USA

ISSN

1058-6393

Print_ISBN

0-8186-7370-2

Type

conf

DOI

10.1109/ACSSC.1995.540592

Filename

540592