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| Presentation | 2012-11-16 11:45 Unified denoising and dereverberation method used in restoration of MTF-based power envelope Masashi Unoki, Shota Morita (JAIST), Xugang Lu (NICT)  EA2012-86 EMM2012-68 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Recent methods of speech enhancement have been proposed to suppress the effects of background noise and reverberation. The effect of background noise in these methods is regarded as additive and that of reverberation is convolutive. Therefore, methods of reducing noise and dereverberation have been applied separately in tandem. We previously unified the effects of noise and reverberation in the modulation transfer function (MTF) concept and we proposed an approach to simultaneously removing the effects of noise and reverberation. This paper further verifies our proposed approach, mathematically and quantitatively. In addition, we generalized the model to four types of real application scenarios, which corresponded to far and near field conditions under noisy reverberant conditions, based on mathematical analysis. We carried out 12,000 simulations for each according to the four application scenarios for denoising and dereverberating noisy reverberant speech, and objectively evaluated the proposed approach. The experimental results revealed that the proposed approach worked well in simultaneously denoising and dereverberating noisy reverberant speech, as the front-end of speech recognition systems. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Modulation transfer function / denoising / dereverberation / power envelope restoration / unification / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 292, EA2012-86, pp. 29-34, Nov. 2012. | |
| Paper # | EA2012-86 | |
| Date of Issue | 2012-11-09 (EA, EMM) | |
| 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 | EA2012-86 EMM2012-68 |
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| Conference Information | |
| Committee | EA EMM |
| Conference Date | 2012-11-16 - 2012-11-17 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | OITA Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2012-11-EA-EMM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Unified denoising and dereverberation method used in restoration of MTF-based power envelope |
| Sub Title (in English) | |
| Keyword(1) | Modulation transfer function |
| Keyword(2) | denoising |
| Keyword(3) | dereverberation |
| Keyword(4) | power envelope restoration |
| Keyword(5) | unification |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Masashi Unoki |
| 1st Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
| 2nd Author's Name | Shota Morita |
| 2nd Author's Affiliation | Japan Advanced Institute of Science and Technology (JAIST) |
| 3rd Author's Name | Xugang Lu |
| 3rd Author's Affiliation | National Institute of Information and Communications Technology (NICT) |
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| Speaker | Author-1 |
| Date Time | 2012-11-16 11:45:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2012-86, EMM2012-68 |
| Volume (vol) | vol.112 |
| Number (no) | no.292(EA), no.293(EMM) |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2012-11-09 (EA, EMM) |
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