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| Presentation | 2014-01-27 16:50 Study of wind noise reduction using a microphone array Naoto Sakata, Kihiro Hashino, Hirofumi Nakajima, Kazunori Miyoshi (Kougakuin Univ.)  EA2013-107 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In this report, we analyze characteristics of wind-induced noise to reduce itself. We record wind-induced noises using a 2-channel microphone array in different conditions of wind speed, direction and microphone distance as parameters. The measures of analyzing are spectrogram, amplitude difference, phase difference, group delay and coherence functions for complex, amplitude and power. As a result, the correlation between 2 channels was low because of big changes of amplitude and phase difference. The value of complex coherence function was 0.8 at the peak of frequency less than 125 Hz, and less than 0.2 between 125 Hz and 1kHz. On the other hand, the values of amplitude and power coherence functions was more than 0.4 for the major frequency band of the wind-induced noise less than 250Hz. This results show that spectrum subtraction is valid for wind-induced noises. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Wind noise / Wind-induced noise / Noise reduction / Microphone array / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 113, no. 413, EA2013-107, pp. 21-26, Jan. 2014. | |
| Paper # | EA2013-107 | |
| Date of Issue | 2014-01-20 (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 | EA2013-107 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2014-01-27 - 2014-01-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kansai University, Centenary Memorial Hall |
| 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 | 2014-01-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of wind noise reduction using a microphone array |
| Sub Title (in English) | |
| Keyword(1) | Wind noise |
| Keyword(2) | Wind-induced noise |
| Keyword(3) | Noise reduction |
| Keyword(4) | Microphone array |
| Keyword(5) | |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Naoto Sakata |
| 1st Author's Affiliation | Kogakuin University (Kougakuin Univ.) |
| 2nd Author's Name | Kihiro Hashino |
| 2nd Author's Affiliation | Kogakuin University (Kougakuin Univ.) |
| 3rd Author's Name | Hirofumi Nakajima |
| 3rd Author's Affiliation | Kogakuin University (Kougakuin Univ.) |
| 4th Author's Name | Kazunori Miyoshi |
| 4th Author's Affiliation | Kogakuin University (Kougakuin Univ.) |
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| Speaker | Author-1 |
| Date Time | 2014-01-27 16:50:00 |
| Presentation Time | 25 minutes |
| Registration for | EA |
| Paper # | EA2013-107 |
| Volume (vol) | vol.113 |
| Number (no) | no.413 |
| Page | pp.21-26 |
| #Pages | 6 |
| Date of Issue | 2014-01-20 (EA) |
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