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| Presentation | 2016-07-08 11:25 The sound direction tracking system with reduced infuluence of noise and reflected wave Kazuo Takayama, Jun Satonobu, Masataka Nakamura (HIT)  EA2016-13 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In the realization of equipment such as video conferencing system , security camera and robot which can communicate with person , the front of them is demanded to follow automatically the sound source direction by the rotating mechanism. Moreover the reduction of malfunction due to noise and reflected sound has now become the problem that should be developed. This paper proposes a new tracking method focused on the simple system realization for small size as well as the reduction of influence due to noise and reflected wave , where the rotation control can be well performed by the simple processing even in the case that two indirectional microphone interval is as small as about 4 cm. With regard to the detection of sound source direction, the processing procedures shown in this paper is as follows. In order to lower the influence of noise, the binarization processing is applied to the output signals of microphones. After that, add/subtractions, integration, multiplication and averaging processing are applied in sequent . As a result, lead-lag detection between the input signals of microphones can be obtained actually in the ranges of audio frequency. Finally it was confirmed by the research concerning with the actual realized system that the proposed concept is valid for the simple realization of sound source direction tracking system. The detail discussion about the operation principal , actual configuration and operating characteristic also shown in this paper. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Sound source direction tracking / (DOA) Direction of arrival / Rotation control / Microphone pair / Video conference system / Robot / / | |
| Reference Info. | IEICE Tech. Rep., vol. 116, no. 122, EA2016-13, pp. 29-34, July 2016. | |
| Paper # | EA2016-13 | |
| Date of Issue | 2016-06-30 (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 | EA2016-13 |
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| Conference Information | |
| Committee | EA |
| Conference Date | 2016-07-07 - 2016-07-08 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Yamaha, Toyooka Factory |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2016-07-EA |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | The sound direction tracking system with reduced infuluence of noise and reflected wave |
| Sub Title (in English) | |
| Keyword(1) | Sound source direction tracking |
| Keyword(2) | (DOA) Direction of arrival |
| Keyword(3) | Rotation control |
| Keyword(4) | Microphone pair |
| Keyword(5) | Video conference system |
| Keyword(6) | Robot |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kazuo Takayama |
| 1st Author's Affiliation | Hiroshima Institute of Technology (HIT) |
| 2nd Author's Name | Jun Satonobu |
| 2nd Author's Affiliation | Hiroshima Institute of Technology (HIT) |
| 3rd Author's Name | Masataka Nakamura |
| 3rd Author's Affiliation | Hiroshima Institute of Technology (HIT) |
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| Speaker | Author-1 |
| Date Time | 2016-07-08 11:25:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2016-13 |
| Volume (vol) | vol.116 |
| Number (no) | no.122 |
| Page | pp.29-34 |
| #Pages | 6 |
| Date of Issue | 2016-06-30 (EA) |
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