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| Presentation | 2023-03-02 16:05 A Proposal of Group Delay Selection Method for Approximate Transfer System for Improving the Accuracy of Sound Source Localization Tomoya Hori, Kenji Suyama (Tokyo Denki Univ.)  CAS2022-123 CS2022-100 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We have developed method for source localization using 2 microphones with high spatial resolution. In this method, TDOA (Time-Difference-Of-Arrival) between microphones is estimated by an adaptive approximation of propagation delay characteristics. Then, because the group delay characteristics of approximated filter is used to estimate the TDOA, spatial aliasing does not occur. However, the effect of modeling propagation delay characteristics on sound source localization performance has not been clarified. In this paper, we will analyze the propagation delay modeling of speech signals and find that the sparsity of speech signals affects the propagation delay approximation. Based on the analysis results, we propose a method to remove the sparsity by whitening the speech signal in order to improve the sound source localization performance. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | microphone array / sound source localization / adaptive filter / spatial aliasing / whitening filter / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 396, CAS2022-123, pp. 155-160, March 2023. | |
| Paper # | CAS2022-123 | |
| Date of Issue | 2023-02-22 (CAS, CS) | |
| 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 | CAS2022-123 CS2022-100 |
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| Conference Information | |
| Committee | CAS CS |
| Conference Date | 2023-03-01 - 2023-03-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kitakyushu International Conference Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network processor, Signal processing and circuits for communications, Wireless LAN / PAN, etc. |
| Paper Information | |
| Registration To | CAS |
| Conference Code | 2023-03-CAS-CS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Proposal of Group Delay Selection Method for Approximate Transfer System for Improving the Accuracy of Sound Source Localization |
| Sub Title (in English) | |
| Keyword(1) | microphone array |
| Keyword(2) | sound source localization |
| Keyword(3) | adaptive filter |
| Keyword(4) | spatial aliasing |
| Keyword(5) | whitening filter |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tomoya Hori |
| 1st Author's Affiliation | Tokyo Denki University (Tokyo Denki Univ.) |
| 2nd Author's Name | Kenji Suyama |
| 2nd Author's Affiliation | Tokyo Denki University (Tokyo Denki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2023-03-02 16:05:00 |
| Presentation Time | 25 minutes |
| Registration for | CAS |
| Paper # | CAS2022-123, CS2022-100 |
| Volume (vol) | vol.122 |
| Number (no) | no.396(CAS), no.397(CS) |
| Page | pp.155-160 |
| #Pages | 6 |
| Date of Issue | 2023-02-22 (CAS, CS) |
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