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| Presentation | 2011-03-18 10:30 Blind Source Separation for Acoustic Echo Cancelation during Double-Talk Kana Akahori (UEC), Yoshihiro Sakai (Tsuyama NCT), Muhammad Tahir Akhtar, Wataru Mitsuhashi (UEC)  EA2010-127 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (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 \textit{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) |
| (in English) | acoustic echo canceler / double-talk / blind source separation / independent component analysis / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 471, EA2010-127, pp. 7-12, March 2011. | |
| Paper # | EA2010-127 | |
| Date of Issue | 2011-03-11 (EA) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | EA2010-127 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2011-03-18 - 2011-03-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2011-03-EA |
| Language | Japanese |
| 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 |
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| Keyword(8) | |
| 1st Author's Name | Kana Akahori |
| 1st Author's Affiliation | University of Electro-Communications (UEC) |
| 2nd Author's Name | Yoshihiro Sakai |
| 2nd Author's Affiliation | Tsuyama National College of Technology (Tsuyama NCT) |
| 3rd Author's Name | Muhammad Tahir Akhtar |
| 3rd Author's Affiliation | University of Electro-Communications (UEC) |
| 4th Author's Name | Wataru Mitsuhashi |
| 4th Author's Affiliation | University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2011-03-18 10:30:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2010-127 |
| Volume (vol) | vol.110 |
| Number (no) | no.471 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2011-03-11 (EA) |
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