| Presentation | 2011-03-18 Blind Source Separation for Acoustic Echo Cancelation during Double-Talk Kana AKAHORI, Yoshihiro SAKAI, AKHTAR Muhammad TAHIR, Wataru MITSUHASHI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | An acoustic echo canceler (AEC) has been used to remove acoustic echoes generated in hands-free telecommunications. The AEC cancels the acoustic echoes by approximating the echo-path with use of an adaptive filter and subtracting the pseudo echoes generated by the filter from the observed signal. However, the conventional adaptive algorithm for updating the filter fails in estimation of the echo-path during double-talk in which both the acoustic echo and the near-end speech are observed. On the other hand, echo cancelation applying blind source separation (BSS) can perform echo cancelation during double-talk, but its convergence speed is slower than that of the conventional adaptive algorithm. In this paper, a system that combines the conventional AEC and BSS is proposed. Simulation results show that the proposed system is effective for the echo-path estimation during double-talk and echo-path variation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic echo canceler / double-talk / blind source separation / independent component analysis |
| Paper # | EA2010-127 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2011/3/11(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Blind Source Separation for Acoustic Echo Cancelation during Double-Talk |
| Sub Title (in English) | |
| Keyword(1) | acoustic echo canceler |
| Keyword(2) | double-talk |
| Keyword(3) | blind source separation |
| Keyword(4) | independent component analysis |
| 1st Author's Name | Kana AKAHORI |
| 1st Author's Affiliation | Graduate School of Electro-Communications, The University of Electro-Communications() |
| 2nd Author's Name | Yoshihiro SAKAI |
| 2nd Author's Affiliation | Department of Information Engineering, Tsuyama National College of Technology |
| 3rd Author's Name | AKHTAR Muhammad TAHIR |
| 3rd Author's Affiliation | The Center for Frontier Science and Engineering, The University of Electro-Communications |
| 4th Author's Name | Wataru MITSUHASHI |
| 4th Author's Affiliation | Graduate School of Electro-Communications, The University of Electro-Communications |
| Date | 2011-03-18 |
| Paper # | EA2010-127 |
| Volume (vol) | vol.110 |
| Number (no) | 471 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |