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| Presentation | 2016-03-29 09:00 [Poster Presentation] Virtual Extrapolation of Microphone Array Length for Two Sound Sources Visualization Maureen, Yoichi Haneda (UEC)  EA2015-103 SIP2015-152 SP2015-131 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The visualization of sound fields is an important task in many practical applications. The MUltiple SIgnal Classification (MUSIC) algorithm and acoustic holography (AH) use a microphone array for estimating sound source positions or visualizing sound fields. %In general, a microphone array is used to visualize sound fields. However, the efficiency and performance of any method depends on the length of the microphone array (aperture length) or the number of microphones. In this paper, we propose a method to virtually extrapolate the length of a microphone array using an estimation of sound source position and its magnitude based on the microphone input signals' phase components. We also propose an active frequency selection method to visualize the sound source more clearly. We conducted experiments of sound field visualization considering the depth direction using the inverse propagation method of one-dimensional near-field acoustic holography (NAH) to evaluate the performance of the proposed method. We used a microphone array with 24 microphones and extrapolated the signals virtually as if they had been observed with 40 microphones. The experimental results show that the proposed method can obtain more accurate sound pressure information and more precise sound source localization, especially for two or more sound sources. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Microphone array / aperture extrapolation / acoustic holography / sound source visualization / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 521, EA2015-103, pp. 201-206, March 2016. | |
| Paper # | EA2015-103 | |
| Date of Issue | 2016-03-21 (EA, SIP, SP) | |
| 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 | EA2015-103 SIP2015-152 SP2015-131 |
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| Conference Information | |
| Committee | EA SP SIP |
| Conference Date | 2016-03-28 - 2016-03-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center B-ConPlaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2016-03-EA-SP-SIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Virtual Extrapolation of Microphone Array Length for Two Sound Sources Visualization |
| Sub Title (in English) | |
| Keyword(1) | Microphone array |
| Keyword(2) | aperture extrapolation |
| Keyword(3) | acoustic holography |
| Keyword(4) | sound source visualization |
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| 1st Author's Name | Maureen * |
| 1st Author's Affiliation | The University of Electro-Communications (UEC) |
| 2nd Author's Name | Yoichi Haneda |
| 2nd Author's Affiliation | The University of Electro-Communications (UEC) |
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| Speaker | Author-1 |
| Date Time | 2016-03-29 09:00:00 |
| Presentation Time | 90 minutes |
| Registration for | EA |
| Paper # | EA2015-103, SIP2015-152, SP2015-131 |
| Volume (vol) | vol.115 |
| Number (no) | no.521(EA), no.522(SIP), no.523(SP) |
| Page | pp.201-206 |
| #Pages | 6 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |
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