Nonlinear residual echo suppression using a power filter model of the acoustic echo path
Küch F, Kellermann W (2007)
Publication Language: English
Publication Status: Published
Publication Type: Conference contribution, Conference Contribution
Publication year: 2007
Publisher: IEEE
Book Volume: 1
Pages Range: I73-I76
Article Number: 4217019
Event location: Honolulu
ISBN: 1-4244-0727-3
DOI: 10.1109/ICASSP.2007.366619
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.
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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.
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