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| Presentation | 2008-07-18 14:00 Estimation of sound source orientation using a 96 channel microphone array Keiko Kikuchi, Tohru Daigo (TDU), Hirofumi Nakajima, Kazuhiro Nakadai, Yuji Hasegawa (HRI-JP), Yutaka Kaneda (TDU)  EA2008-39 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper addresses sound source orientation estimation using a 96ch microphone array. We proposed a beam-forming method with estimation of sound source directivity, and reported orientation estimation of a speech source such as a loudspeaker or an actual human. However, in this method, a transfer function to design a beam-former should be the same as that of target sound source. Otherwise the performance deteriorated due to a mismatch between these two transfer functions. In addition, voice activity detection (VAD) was manually performed. To solve the former, we proposed amplitude-based orientation estimation using a histogram to relax the effect of the mismatch problems mainly caused by phase errors and outliers. For the latter, speech frequency component detection based on inner product and automatic VAD based on auto-correlation are introduced to form a frequency-temporal masking pattern. Preliminary experiments showed that sound source orientation estimation with automatic VAD for actual human voices drastically improved even when using a loudspeaker-based transfer function. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sound orientation estimation / Voice activity detection (VAD) / Microphone array / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 143, EA2008-39, pp. 13-18, July 2008. | |
| Paper # | EA2008-39 | |
| Date of Issue | 2008-07-11 (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 | EA2008-39 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2008-07-18 - 2008-07-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2008-07-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Estimation of sound source orientation using a 96 channel microphone array |
| Sub Title (in English) | |
| Keyword(1) | Sound orientation estimation |
| Keyword(2) | Voice activity detection (VAD) |
| Keyword(3) | Microphone array |
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| 1st Author's Name | Keiko Kikuchi |
| 1st Author's Affiliation | Tokyo Denki University (TDU) |
| 2nd Author's Name | Tohru Daigo |
| 2nd Author's Affiliation | Tokyo Denki University (TDU) |
| 3rd Author's Name | Hirofumi Nakajima |
| 3rd Author's Affiliation | Honda Research Institute Japan (HRI-JP) |
| 4th Author's Name | Kazuhiro Nakadai |
| 4th Author's Affiliation | Honda Research Institute Japan (HRI-JP) |
| 5th Author's Name | Yuji Hasegawa |
| 5th Author's Affiliation | Honda Research Institute Japan (HRI-JP) |
| 6th Author's Name | Yutaka Kaneda |
| 6th Author's Affiliation | Tokyo Denki University (TDU) |
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| Speaker | Author-1 |
| Date Time | 2008-07-18 14:00:00 |
| Presentation Time | 30 minutes |
| Registration for | EA |
| Paper # | EA2008-39 |
| Volume (vol) | vol.108 |
| Number (no) | no.143 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2008-07-11 (EA) |
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