Spectro-Temporal Filtering Based on Soft Decision for Stereophonic Acoustic Echo Suppression 


Vol. 39,  No. 12, pp. 1346-1351, Dec.  2014


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  Abstract

We propose a novel approach for stereophonic acoustic echo suppression using spectro-temporal filtering based on soft decision. Unlike the conventional approaches estimating the echo pathes directly, the proposed technique can estimate stereo echo spectra without any double-talk detector. In order to improve the estimation of echo spectra, the extended power spectrum density matrix and echo overestimation control matrix are applied on this method. In addition, this echo suppression technique is based on soft decision technique using speech absence probability in STFT domain. Experimental results show that the proposed method improves compared with the conventional approaches.

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  Cite this article

[IEEE Style]

C. M. Lee, S. H. Bae, J. H. Kim, N. S. Kim, "Spectro-Temporal Filtering Based on Soft Decision for Stereophonic Acoustic Echo Suppression," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 12, pp. 1346-1351, 2014. DOI: .

[ACM Style]

Chul Min Lee, Soo Hyun Bae, Jeung Hun Kim, and Nam Soo Kim. 2014. Spectro-Temporal Filtering Based on Soft Decision for Stereophonic Acoustic Echo Suppression. The Journal of Korean Institute of Communications and Information Sciences, 39, 12, (2014), 1346-1351. DOI: .

[KICS Style]

Chul Min Lee, Soo Hyun Bae, Jeung Hun Kim, Nam Soo Kim, "Spectro-Temporal Filtering Based on Soft Decision for Stereophonic Acoustic Echo Suppression," The Journal of Korean Institute of Communications and Information Sciences, vol. 39, no. 12, pp. 1346-1351, 12. 2014.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880