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Paper Abstract and Keywords
Presentation 2026-03-02 14:00
[Poster Presentation] Two-Microphone Sound Source Localization Focused on Extracting Single-Source Bins
Riku Kamoto, Kenji Suyama (Tokyo Denki Univ.) EA2025-86 SIP2025-106 SP2025-39
Abstract (in Japanese) (See Japanese page) 
(in English) Multiple sound source localization with two microphones is challenging because TDOAs cannot be estimated independently for each source.
To address this, a method combining Root-MUSIC and mixture model analysis has been proposed, leveraging the time-frequency sparsity of speech.
However, including estimates from multiple sources or no signal bins significantly degrades accuracy, especially with small angular separation.
To overcome this, the present study focuses on the suppression amount of WSC to extract single source bins from three bin types.
Experimental results in real environments demonstrate that the proposed method effectively reduces the undesirable effect of multiple sources and no signal bins
Keyword (in Japanese) (See Japanese page) 
(in English) microphone array / sound source localization / sparsity of speech / mixture model analysis / / / /  
Reference Info. IEICE Tech. Rep., vol. 125, no. 369, EA2025-86, pp. 81-86, March 2026.
Paper # EA2025-86 
Date of Issue 2026-02-23 (EA, SIP, SP) 
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 EA2025-86 SIP2025-106 SP2025-39

Conference Information
Committee SP EA SIP IPSJ-SLP  
Conference Date 2026-03-02 - 2026-03-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2026-03-SP-EA-SIP-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Two-Microphone Sound Source Localization Focused on Extracting Single-Source Bins 
Sub Title (in English)  
Keyword(1) microphone array  
Keyword(2) sound source localization  
Keyword(3) sparsity of speech  
Keyword(4) mixture model analysis  
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Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Riku Kamoto  
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 2026-03-02 14:00:00 
Presentation Time 80 minutes 
Registration for EA 
Paper # EA2025-86, SIP2025-106, SP2025-39 
Volume (vol) vol.125 
Number (no) no.369(EA), no.370(SIP), no.371(SP) 
Page pp.81-86 
#Pages 6 
Date of Issue 2026-02-23 (EA, SIP, SP) 

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