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http://dx.doi.org/10.13067/JKIECS.2018.13.5.979

Acoustic Echo Cancellation Based on Convolutive Blind Signal Separation Method  

Lee, Haeng-Woo (Dept. of Information Communication, Namseoul University)
Publication Information
The Journal of the Korea institute of electronic communication sciences / v.13, no.5, 2018 , pp. 979-986 More about this Journal
Abstract
This paper deals with acoustic echo cancellation using blind signal separation method. This method does not degrade the echo cancellation performance even during double-talk. In the closed echo environment, the mixing model of acoustic signals is multi-channel, so the convolutive blind signal separation method is applied and the mixing coefficients are calculated by using the feedback model without directly calculating the separation coefficients for signal separation. The coefficient update is performed by iterative calculations based on the second-order statistical properties, thus estimates the near-end speech. A number of simulations have been performed to verify the performance of the proposed blind signal separation method. The simulation results show that the acoustic echo canceller using this method operates safely regardless of the presence of double-talk, and the PESQ is improved by 0.6 point compared with the general adaptive FIR filter structure.
Keywords
Blind Signal Separation; Acoustic Echo Canceller; Double Talk; Multi-Channel;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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