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| Presentation | 2016-11-18 14:45 Speech enhancement in the specific area using information of sound source position Takuto Yoshimizu, Akitoshi Kataoka (Ryukoku Univ.)  EA2016-65 EMM2016-71 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | As technology to emphasize the desired signal while to adapt to the noise environment, the beamformer using a microphone array has been proposed. The beamformer is technology to emphasize the desired signal by aligning the phase of the incoming signal from desired direction. In addition, we have confirm that it is possible to improve noise suppression amount by to use a Wiener post-filter together with a beamformer. However, these methods deteriorate to performance, because it is difficult to suppress incoming noise from the direction same as desired sound source in the environment such as the desired sound source is surrounded by noise. The methods which emphasize desired sound source using two microphone arrays arranged in different positions are proposed. We can get different information of sound by using two microphone arrays. They are methods that emphasize desired signal using that information. However, there is problem that desired signal is distorted due to the estimation error of the acoustic model. This paper, we propose the suppression method in Wiener post-filter based on the position information of the sound source. Acoustic model used in the Wiener post-filter is estimated from the matrix of beam patterns corresponding to the power spectrum and the sound source position of the beamformer output emphasized sound source position. Because the matrix of beam patterns is regular matrix, this method can be smaller the error of estimated acoustic model than conventional method. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | microphone array / noise reduction / beamformer / Wiener post-filter / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 302, EA2016-65, pp. 101-106, Nov. 2016. | |
| Paper # | EA2016-65 | |
| Date of Issue | 2016-11-10 (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 | EA2016-65 EMM2016-71 |
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| Conference Information | |
| Committee | EA EMM |
| Conference Date | 2016-11-17 - 2016-11-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Compal Hall (Oita) |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Multimedia Fusion, Content Processing, Multimedia Retrieval, Digital Watermarking, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2016-11-EA-EMM |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Speech enhancement in the specific area using information of sound source position |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | noise reduction |
| Keyword(3) | beamformer |
| Keyword(4) | Wiener post-filter |
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| Keyword(6) | |
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| 1st Author's Name | Takuto Yoshimizu |
| 1st Author's Affiliation | Ryukoku University (Ryukoku Univ.) |
| 2nd Author's Name | Akitoshi Kataoka |
| 2nd Author's Affiliation | Ryukoku University (Ryukoku Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-11-18 14:45:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2016-65, EMM2016-71 |
| Volume (vol) | vol.116 |
| Number (no) | no.302(EA), no.303(EMM) |
| Page | pp.101-106 |
| #Pages | 6 |
| Date of Issue | 2016-11-10 (EA, EMM) |
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