Residual Echo Suppression Based on Tracking Echo-Presence Uncertainty 


Vol. 34,  No. 10, pp. 955-960, Oct.  2009


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  Abstract

In this paper, we propose a novel approach to residual echo suppression (RES) algorithm based on tracking echo-presence uncertainty (TEPU) to improve the performance of acoustic echo suppression (AES) in the frequency domain. In the proposed method, the ratio of the microphone input and the echo-suppressed output signal power is employed as the threshold value for the decision rule to estimate the echo-presence uncertainty applied to the RES filter. The proposed RES scheme estimates the echo presence uncertainty in each frequency bin and effectively reduces residual echo signal in a simple fashion. The performance of the proposed algorithm is evaluated by the objective test and yields better results compared with the conventional schemes.

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  Cite this article

[IEEE Style]

Y. Park and J. Chang, "Residual Echo Suppression Based on Tracking Echo-Presence Uncertainty," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 10, pp. 955-960, 2009. DOI: .

[ACM Style]

Yun-Sik Park and Joon-Hyuk Chang. 2009. Residual Echo Suppression Based on Tracking Echo-Presence Uncertainty. The Journal of Korean Institute of Communications and Information Sciences, 34, 10, (2009), 955-960. DOI: .

[KICS Style]

Yun-Sik Park and Joon-Hyuk Chang, "Residual Echo Suppression Based on Tracking Echo-Presence Uncertainty," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 10, pp. 955-960, 10. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880