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Paper Abstract and Keywords
Presentation 2013-07-19 15:45
Semi-Blind Optimization Scheme of Joint Suppression of Background Noise and Late Reverberation
Fine D. Aprilyanti, Hiroshi Saruwatari, Kiyohiro Shikano, Satoshi Nakamura (NAIST), Tomoya Takatani (Toyota) EA2013-52
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, a method to jointly suppress diffuse background noise and late reverberation part of speech has been proposed, combining frequency domain speech signal extraction and Wiener filter. In this paper, we propose an automatic optimization scheme of this joint method to improve the speech recognition accuracy for spoken-dialogue robot. We optimize the internal parameter of the conventional method using the assessment of musical noise measured by higher-order statistics and acoustic model likelihood. In addition, we apply the switching scheme using the distance information provided by image sensor to maintain the optimum performance of this method. The experimental results show that the proposed approach improves the word recognition accuracy.
Keyword (in Japanese) (See Japanese page) 
(in English) Blind signal extraction / noise suppression / dereverberation / higher-order statistics / acoustic likelihood / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 134, EA2013-52, pp. 111-116, July 2013.
Paper # EA2013-52 
Date of Issue 2013-07-11 (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)
Download PDF EA2013-52

Conference Information
Committee EA  
Conference Date 2013-07-18 - 2013-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Health Sci. Univ. of Hokkaido 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Engineering/Electro Acoustics, Musical Acoustics, Psychological and Physiological Acoustics, and Related Topics 
Paper Information
Registration To EA 
Conference Code 2013-07-EA 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Semi-Blind Optimization Scheme of Joint Suppression of Background Noise and Late Reverberation 
Sub Title (in English)  
Keyword(1) Blind signal extraction  
Keyword(2) noise suppression  
Keyword(3) dereverberation  
Keyword(4) higher-order statistics  
Keyword(5) acoustic likelihood  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Fine D. Aprilyanti  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Hiroshi Saruwatari  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Kiyohiro Shikano  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Satoshi Nakamura  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
5th Author's Name Tomoya Takatani  
5th Author's Affiliation Toyota Motor Corporation (Toyota)
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Speaker Author-1 
Date Time 2013-07-19 15:45:00 
Presentation Time 30 minutes 
Registration for EA 
Paper # EA2013-52 
Volume (vol) vol.113 
Number (no) no.134 
Page pp.111-116 
#Pages 6 
Date of Issue 2013-07-11 (EA) 

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