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Paper Abstract and Keywords
Presentation 2012-06-08 13:40
Blind speech extraction for non-audible murmur speech with speaker's movement noise
Miyuki Itoi, Ryoichi Miyazaki, Tomoki Toda, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST) EA2012-40
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we address an improvement method of noise reduction used in multichannel Non-Audible Murmur (NAM) based on blind source separation. Recently, speech processing with NAM has been proposed for applying versatile speech interface into quiet environments where we hesitate to utter. NAM is a very soft whispered voice signal detected with the NAM microphone, which is one of the body-conductive microphone. The detected NAM signal always suffers from nonstationary noise caused by speaker’s movement because it changes the setting condition of the NAM microphone. In order to reduce the noise signal, blind noise reduction using a stereo NAM signals detected with two NAM microphones has been proposed by some of the authors. In this report, we aim to achieve further improvement in the noise reduction ability by changing the noise estimation and postprocessing algorithms to enhance the target NAM signal. In addition, we evaluate the application of recording the NAM signals with various types of microphones.
Keyword (in Japanese) (See Japanese page) 
(in English) Non-Audible Murmur / Blind spatial subtraction array / Nonstationary noise / Throat microphone / / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 76, EA2012-40, pp. 43-48, June 2012.
Paper # EA2012-40 
Date of Issue 2012-06-01 (EA) 
ISSN Print edition: ISSN 0913-5685    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)
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Conference Information
Committee EA  
Conference Date 2012-06-08 - 2012-06-08 
Place (in Japanese) (See Japanese page) 
Place (in English) Yamaha Co. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics 
Paper Information
Registration To EA 
Conference Code 2012-06-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Blind speech extraction for non-audible murmur speech with speaker's movement noise 
Sub Title (in English)  
Keyword(1) Non-Audible Murmur  
Keyword(2) Blind spatial subtraction array  
Keyword(3) Nonstationary noise  
Keyword(4) Throat microphone  
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1st Author's Name Miyuki Itoi  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Ryoichi Miyazaki  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Tomoki Toda  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Hiroshi Saruwatari  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
5th Author's Name Kiyohiro Shikano  
5th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2012-06-08 13:40:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2012-40 
Volume (vol) vol.112 
Number (no) no.76 
Page pp.43-48 
#Pages 6 
Date of Issue 2012-06-01 (EA) 

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