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Paper Abstract and Keywords
Presentation 2008-12-09 10:50
Noisy speech recognition using integrated method of statistical model-based voice activity detection and noise suppression
Masakiyo Fujimoto, Kentaro Ishizuka, Tomohiro Nakatani (NTT Corporation) NLC2008-26 SP2008-81
Abstract (in Japanese) (See Japanese page) 
(in English) This paper addresses robust front-end processing for automatic speech recognition in noise. The proposed method integrates voice activity detection (VAD) and noise suppression, and consists of three core techniques, i.e., (1) statistical model sharing, (2) Wiener filter design by using speech / non-speech probabilities, and (3) VAD improvement by using enhance speech. In addition, the proposed method can perform sequential processing without frame delay. In an evaluation, the proposed method significantly improves accuracy of concatenated speech recognition without frame delay. In addition, we investigate to combine cepstrum mean normalization and sequential acoustic model adaptation with the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) integrated front-end processing / voice activity detection / noise suppression / sequential processing / speech recognition / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 338, SP2008-81, pp. 13-18, Dec. 2008.
Paper # SP2008-81 
Date of Issue 2008-12-02 (NLC, 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)
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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) Noisy speech recognition using integrated method of statistical model-based voice activity detection and noise suppression 
Sub Title (in English)  
Keyword(1) integrated front-end processing  
Keyword(2) voice activity detection  
Keyword(3) noise suppression  
Keyword(4) sequential processing  
Keyword(5) speech recognition  
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1st Author's Name Masakiyo Fujimoto  
1st Author's Affiliation NTT Corporation (NTT Corporation)
2nd Author's Name Kentaro Ishizuka  
2nd Author's Affiliation NTT Corporation (NTT Corporation)
3rd Author's Name Tomohiro Nakatani  
3rd Author's Affiliation NTT Corporation (NTT Corporation)
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Speaker
Date Time 2008-12-09 10:50:00 
Presentation Time 25 
Registration for SP 
Paper # IEICE-NLC2008-26,IEICE-SP2008-81 
Volume (vol) IEICE-108 
Number (no) no.337(NLC), no.338(SP) 
Page pp.13-18 
#Pages IEICE-6 
Date of Issue IEICE-NLC-2008-12-02,IEICE-SP-2008-12-02 


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