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Paper Abstract and Keywords
Presentation 2010-05-27 09:50
Blind signal separation using dodecahedral microphone array in real environment
Motoki Ogasawara (Nagoya Univ.), Takanori Nishino (Mie Univ.), Kazuya Takeda (Nagoya Univ.) EA2010-12 SIP2010-12 SP2010-12
Abstract (in Japanese) (See Japanese page) 
(in English) Extracting the acoustic signal of a particular sound source and locating its position is important technique for many acoustic systems. In our study, a small dodecahedral microphone array installing many microphones in order to construct a robust encoding acoustic field system was developed. This system can extract the acoustic signals and source position even if there is no information of sound sources and acoustic environment. Our proposed method based on the frequency-domain independent component analysis clusters acoustic transfer functions between the sound source and microphones with spatial information. Our proposed method uses a novel similarity measure that combines amplitude and phase similarity as a function of frequency. This measure bases on the human sound localization ability. The encoding acoustic field in the real environment for real talker was executed and four subjects evaluated separated signals. Experimental results clarified the effectiveness of the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) Dodecahedral microphone array / Acoustic field encoding / Frequency-domain independent component analysis / Blind signal separation / / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 54, EA2010-12, pp. 67-72, May 2010.
Paper # EA2010-12 
Date of Issue 2010-05-19 (EA, SIP, SP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 EA2010-12 SIP2010-12 SP2010-12

Conference Information
Committee SP EA SIP  
Conference Date 2010-05-26 - 2010-05-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Konan Univ. (Hirao Seminar House) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech, Engineering/Electro Acoustics, Signal Processing,and Related Topics 
Paper Information
Registration To EA 
Conference Code 2010-05-SP-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Blind signal separation using dodecahedral microphone array in real environment 
Sub Title (in English)  
Keyword(1) Dodecahedral microphone array  
Keyword(2) Acoustic field encoding  
Keyword(3) Frequency-domain independent component analysis  
Keyword(4) Blind signal separation  
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1st Author's Name Motoki Ogasawara  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Takanori Nishino  
2nd Author's Affiliation Mie University (Mie Univ.)
3rd Author's Name Kazuya Takeda  
3rd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-2 
Date Time 2010-05-27 09:50:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2010-12, SIP2010-12, SP2010-12 
Volume (vol) vol.110 
Number (no) no.54(EA), no.55(SIP), no.56(SP) 
Page pp.67-72 
#Pages
Date of Issue 2010-05-19 (EA, SIP, SP) 


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