IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2008-12-09 10:00
Two-channel input speech recognition using sparsness-based blind source separation
Kenta Nishiki, Yosuke Izumi (Univ. of Tokyo), Shinji Watanabe (NTT), Takuya Nishimoto, Nobutaka Ono, Shigeki Sagayama (Univ. of Tokyo) NLC2008-24 SP2008-79
Abstract (in Japanese) (See Japanese page) 
(in English) This paper discusses a two-channel input speech recognition using a sparsness-based blind source separation. The target speech is extracted from observed signals under diffusive noises (e.g. reverberation) by the source separation technique where a time-frequency mask is dynamically designed for speech separation using the EM algorithm. Cepstral Mean Normalization is exploited to reduce a remaining distortions or a newly introduced distortions in separated speech features. In a connected digit recognition task with multiple noise sources, the proposed method drastically improved the word accuracy in anechoic and reverberant environments. The proposed method achieved higher performance especially in a reverberant environment than conventional methods.
Keyword (in Japanese) (See Japanese page) 
(in English) sparsness / 2-channel blind source separation / reverberation / speech recognition / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 338, SP2008-79, pp. 1-6, Dec. 2008.
Paper # SP2008-79 
Date of Issue 2008-12-02 (NLC, SP) 
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 NLC2008-24 SP2008-79

Conference Information
Committee SP NLC  
Conference Date 2008-12-09 - 2008-12-10 
Place (in Japanese) (See Japanese page) 
Place (in English) Waseda Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2008-12-SP-NLC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Two-channel input speech recognition using sparsness-based blind source separation 
Sub Title (in English)  
Keyword(1) sparsness  
Keyword(2) 2-channel blind source separation  
Keyword(3) reverberation  
Keyword(4) speech recognition  
Keyword(5)  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Kenta Nishiki  
1st Author's Affiliation University of Tokyo (Univ. of Tokyo)
2nd Author's Name Yosuke Izumi  
2nd Author's Affiliation University of Tokyo (Univ. of Tokyo)
3rd Author's Name Shinji Watanabe  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Takuya Nishimoto  
4th Author's Affiliation University of Tokyo (Univ. of Tokyo)
5th Author's Name Nobutaka Ono  
5th Author's Affiliation University of Tokyo (Univ. of Tokyo)
6th Author's Name Shigeki Sagayama  
6th Author's Affiliation University of Tokyo (Univ. of Tokyo)
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Speaker Author-1 
Date Time 2008-12-09 10:00:00 
Presentation Time 25 minutes 
Registration for SP 
Paper # NLC2008-24, SP2008-79 
Volume (vol) vol.108 
Number (no) no.337(NLC), no.338(SP) 
Page pp.1-6 
#Pages
Date of Issue 2008-12-02 (NLC, SP) 


[Return to Top Page]

[Return to IEICE Web Page]


The Institute of Electronics, Information and Communication Engineers (IEICE), Japan