Coherence-aware stereophonic residual echo estimation

Luis Valero M, Yildiz I, Mabande E, Habets E (2017)

Publication Language: English

Publication Status: Published

Publication Type: Conference contribution

Publication year: 2017

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 176-180

Article Number: 7895585

Conference Proceedings Title: Proc. of the Joint Workshop on Hands-free Speech Communication and Microphone Arrays

Event location: San Francisco, CA US

ISBN: 9781509059256

DOI: 10.1109/HSCMA.2017.7895585

Abstract

The performance of stereophonic acoustic echo cancelers is highly dependent on the coherence between the loudspeaker signals. If this is high, convergence is slow, during which audible residual echoes remain. Residual echoes can be reduced by applying a residual echo suppressor to the canceler's output. Yet, in order to obtain the post-filter gains, it is necessary to estimate the residual echoes first, and the performance of stereophonic residual echo estimators also depends on the loudspeaker signals' coherence. In this paper, a stereophonic residual echo estimator is proposed that takes the coherence between the signals into account. By doing this, it is possible to reliably estimate the residual echoes, even if the loudspeaker signals are completely coherent.

Authors with CRIS profile

Maria Luis Valero Professur für wahrnehmungsbasierte räumliche Audiosignalverarbeitung (AudioLabs) (Stiftungsprofessur) Emanuël Habets Professur für wahrnehmungsbasierte räumliche Audiosignalverarbeitung (AudioLabs) (Stiftungsprofessur)

How to cite

APA:

Luis Valero, M., Yildiz, I., Mabande, E., & Habets, E. (2017). Coherence-aware stereophonic residual echo estimation. In Proc. of the Joint Workshop on Hands-free Speech Communication and Microphone Arrays (pp. 176-180). San Francisco, CA, US: Institute of Electrical and Electronics Engineers Inc..

MLA:

Luis Valero, Maria, et al. "Coherence-aware stereophonic residual echo estimation." Proceedings of the 2017 Hands-Free Speech Communications and Microphone Arrays, HSCMA 2017, San Francisco, CA Institute of Electrical and Electronics Engineers Inc., 2017. 176-180.

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