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Paper Abstract and Keywords
Presentation 2023-03-01 10:40
Quasi-real-time estimation of a maximum radiation direction from a loudspeaker surrounded by four microphones based on SPL ratio
Ryusei Tsuda, Daiki Maekawa, Tomoru Awatani, Masato Nakayama, Toru Takahashi (Osaka Sangyo Univ.) EA2022-111 SIP2022-155 SP2022-75
Abstract (in Japanese) (See Japanese page) 
(in English) We describe about an estimation method of loudspeaker direction.
The method estimates the direction from level ratio between signals received by four microphones.
The method is evaluated by simulations estimated from short segments of Japanese sentences every 0.2 seconds.
A simulation results showed that estimation accuracies are 43.0%, 65.4%, 84.0% and 93.0% under the center frequencies i.e. 500Hz, 1000Hz, 2000Hz and 4000Hz of 1/3 octave bands.
The most highest accuracy was achieved by the condition using 4000Hz as center frequency.
Keyword (in Japanese) (See Japanese page) 
(in English) distributed microphone / 1/3 octave band levels, / source direction / radiation characteristics / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 387, EA2022-111, pp. 215-220, Feb. 2023.
Paper # EA2022-111 
Date of Issue 2023-02-21 (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 EA2022-111 SIP2022-155 SP2022-75

Conference Information
Committee SP IPSJ-SLP EA SIP  
Conference Date 2023-02-28 - 2023-03-01 
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 2023-02-SP-SLP-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Quasi-real-time estimation of a maximum radiation direction from a loudspeaker surrounded by four microphones based on SPL ratio 
Sub Title (in English)  
Keyword(1) distributed microphone  
Keyword(2) 1/3 octave band levels,  
Keyword(3) source direction  
Keyword(4) radiation characteristics  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ryusei Tsuda  
1st Author's Affiliation Osaka Sangyo University (Osaka Sangyo Univ.)
2nd Author's Name Daiki Maekawa  
2nd Author's Affiliation Osaka Sangyo University (Osaka Sangyo Univ.)
3rd Author's Name Tomoru Awatani  
3rd Author's Affiliation Osaka Sangyo University (Osaka Sangyo Univ.)
4th Author's Name Masato Nakayama  
4th Author's Affiliation Osaka Sangyo University (Osaka Sangyo Univ.)
5th Author's Name Toru Takahashi  
5th Author's Affiliation Osaka Sangyo University (Osaka Sangyo Univ.)
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Speaker Author-1 
Date Time 2023-03-01 10:40:00 
Presentation Time 20 minutes 
Registration for EA 
Paper # EA2022-111, SIP2022-155, SP2022-75 
Volume (vol) vol.122 
Number (no) no.387(EA), no.388(SIP), no.389(SP) 
Page pp.215-220 
#Pages 6 
Date of Issue 2023-02-21 (EA, SIP, SP) 

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