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| Presentation | 2016-03-28 13:15 [Poster Presentation] A Control Method of Adaptive Filters Using Past Input Signals and Filter Coefficients Tomoahru Awano, Atsuyoshi Yano, Jun Ishii (Mitsubishi Electric Corp)  EA2015-96 SIP2015-145 SP2015-124 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Double talk situation makes an adaptive filter mistake the estimation of an echo pass (a transfer function) and the performance get much lower. Therefore, during double talk, the learning of the adaptive filters should be stopped. Echo canceller with two filters is an example of conventional method to solve this problem. One filter called BackGround(BG) filter always learn the echo passes even during double talk, and the other filter called ForeGround(FG) filter gradually gets coefficients of the BG filter in order to avoid sudden changes of coefficients. Echo is reduced by FG filter, so the mismatch is low. However, this method has slow convergence. We proposed a new control method of adaptive filters by objecting echo return loss (ERL). In our proposed method one filter which has larger ERL value is selected. We also conducted the some simulations and showed our proposal results are better than conventional methods. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Echo Canceller / Adaptive Filter / Double Talk / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 522, SIP2015-145, pp. 175-178, March 2016. | |
| Paper # | SIP2015-145 | |
| Date of Issue | 2016-03-21 (EA, SIP, SP) | |
| 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 | EA2015-96 SIP2015-145 SP2015-124 |
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| Conference Information | |
| Committee | EA SP SIP |
| Conference Date | 2016-03-28 - 2016-03-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center B-ConPlaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics |
| Paper Information | |
| Registration To | SIP |
| Conference Code | 2016-03-EA-SP-SIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Control Method of Adaptive Filters Using Past Input Signals and Filter Coefficients |
| Sub Title (in English) | |
| Keyword(1) | Echo Canceller |
| Keyword(2) | Adaptive Filter |
| Keyword(3) | Double Talk |
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| 1st Author's Name | Tomoahru Awano |
| 1st Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp) |
| 2nd Author's Name | Atsuyoshi Yano |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp) |
| 3rd Author's Name | Jun Ishii |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation (Mitsubishi Electric Corp) |
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| Speaker | Author-1 |
| Date Time | 2016-03-28 13:15:00 |
| Presentation Time | 90 minutes |
| Registration for | SIP |
| Paper # | EA2015-96, SIP2015-145, SP2015-124 |
| Volume (vol) | vol.115 |
| Number (no) | no.521(EA), no.522(SIP), no.523(SP) |
| Page | pp.175-178 |
| #Pages | 4 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |
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