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| Presentation | 2021-12-22 13:30 [Poster Presentation] A Study on Estimating TDoA of Sound in Reverberant Environment Yudai Suzuki (UTokyo), Tsutomu Ikegami (AIST), Tomohiro Kudoh (UTokyo)  EA2021-58 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The measurement of the time difference of arrival (TDoA) of sound is improved by coupling reverberation removal filters with the Cross-power Spectrum Phase (CSP) analysis. TDoA can be estimated accurately for an usual sound source and a pair of microphones by calculating CSP signal from sampled data on the microphones. The CSP signal, however, becomes noisy under the reverberant environment. By using the room acoustic simulations, we found that the CSP signal becomes clear again by applying a reverberation removal filter on each sampled data. The filter is first constructed by removing a time-delay component from a room impulse response (RIR) function, which is defined for each pair of a sound source and a microphone. Another method to construct the filter is also investigated, where a gaussian pop noise and a chirp signal are used to obtain an effective RIR function without the delay component. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Time difference of arrival / CSP method / Noise removal / Source estimation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 121, no. 311, EA2021-58, pp. 7-12, Dec. 2021. | |
| Paper # | EA2021-58 | |
| Date of Issue | 2021-12-15 (EA) | |
| ISSN | 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 | EA2021-58 |
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| Conference Information | |
| Committee | EA US |
| Conference Date | 2021-12-22 - 2021-12-23 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Sojo University |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonics, etc. |
| Paper Information | |
| Registration To | EA |
| Conference Code | 2021-12-EA-US |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Study on Estimating TDoA of Sound in Reverberant Environment |
| Sub Title (in English) | |
| Keyword(1) | Time difference of arrival |
| Keyword(2) | CSP method |
| Keyword(3) | Noise removal |
| Keyword(4) | Source estimation |
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| Keyword(8) | |
| 1st Author's Name | Yudai Suzuki |
| 1st Author's Affiliation | The University of Tokyo (UTokyo) |
| 2nd Author's Name | Tsutomu Ikegami |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) |
| 3rd Author's Name | Tomohiro Kudoh |
| 3rd Author's Affiliation | The University of Tokyo (UTokyo) |
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| Speaker | Author-1 |
| Date Time | 2021-12-22 13:30:00 |
| Presentation Time | 120 minutes |
| Registration for | EA |
| Paper # | EA2021-58 |
| Volume (vol) | vol.121 |
| Number (no) | no.311 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2021-12-15 (EA) |
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