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| Presentation | 2017-01-25 13:00 [Poster Presentation] Directive beamforming based on probability weighted least square Ryusuke Tanaka, Yoichi Haneda (UEC)  EA2016-70 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Directivity beamforming using a microphone array has been currently implemented for noise suppres- sion in video conferencing. However, directivity beamforming methods exhibit a trade-off between the directivity and the lter gain. In this paper, we investigate the weighted least square method, whose lter and weight matrix are given a priori distribution for controlling the trade-off. We expect that the weight matrix and regularization parameter can be estimated appropriately by assuming a priori distribution. The proposed method is evaluated by comparing it with the conventional method through a computer simulation, which leads to the directivity not being formed appropriately in the proposed method. This is because the weight matrix could not be estimated appropriately and the regularized parameter estimation tended to be too small. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Microphone Array / Directivity beamforming / Weighted least square / Statistical signal processing / Variational inference / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 420, EA2016-70, pp. 13-18, Jan. 2017. | |
| Paper # | EA2016-70 | |
| Date of Issue | 2017-01-18 (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 | EA2016-70 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2017-01-25 - 2017-01-26 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Doshisha Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2017-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Directive beamforming based on probability weighted least square |
| Sub Title (in English) | |
| Keyword(1) | Microphone Array |
| Keyword(2) | Directivity beamforming |
| Keyword(3) | Weighted least square |
| Keyword(4) | Statistical signal processing |
| Keyword(5) | Variational inference |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ryusuke Tanaka |
| 1st Author's Affiliation | University of Electro-Communications (UEC) |
| 2nd Author's Name | Yoichi Haneda |
| 2nd Author's Affiliation | University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2017-01-25 13:00:00 |
| Presentation Time | 90 minutes |
| Registration for | EA |
| Paper # | EA2016-70 |
| Volume (vol) | vol.116 |
| Number (no) | no.420 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2017-01-18 (EA) |
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