Nonlinear residual echo suppression using a power filter model of the acoustic echo path

Conference contribution
(Conference Contribution)


Publication Details

Author(s): Küch F, Kellermann W
Editor(s): IEEE
Publisher: IEEE
Publication year: 2007
Volume: 1
Pages range: I73-I76
ISBN: 1-4244-0727-3
ISSN: 1520-6149
Language: English


Abstract


Loudspeakers and amplifiers of mobile communication receivers may cause significant nonlinear distortion in the acoustic echo path, resulting in a limitation of the performance of linear echo cancelers. In this contribution, we present a nonlinear acoustic echo suppressor in order to increase the attenuation of the nonlinearly distorted residual echo. The proposed approach is based on a power filter model of the acoustic echo path which is applied to the estimation of the power spectral density of the nonlinear residual echo. These time-variant estimates are used to appropriately adjust the frequency-dependent gain values of the echo suppressor. The performance of the proposed approach is evaluated in realistic experimental set-ups. © 2007 IEEE.


FAU Authors / FAU Editors

Kellermann, Walter Prof. Dr.-Ing.
Professur für Nachrichtentechnik


How to cite

APA:
Küch, F., & Kellermann, W. (2007). Nonlinear residual echo suppression using a power filter model of the acoustic echo path. In IEEE (Eds.), Proceedings of the 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07 (pp. I73-I76). Honolulu, US: IEEE.

MLA:
Küch, Fabian, and Walter Kellermann. "Nonlinear residual echo suppression using a power filter model of the acoustic echo path." Proceedings of the 2007 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '07, Honolulu Ed. IEEE, IEEE, 2007. I73-I76.

BibTeX: 

Last updated on 2019-27-05 at 17:38