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Paper Abstract and Keywords
Presentation 2008-07-17 14:00
An evaluation and an examination of integration method of statistical model-based voice activity detection and noise suppression
Masakiyo Fujimoto, Kentaro Ishizuka, Tomohiro Nakatani (NTT CS Labs.) SP2008-45
Abstract (in Japanese) (See Japanese page) 
(in English) This paper addresses robust front-end processing for automatic speech recognition (ASR) in noisy environments.
Usually, noise suppression (NS) is used for the front-end processing of ASR in noise.
VAD and NS are typically combined as series processing. However, VAD and NS should not be assumed to be a separate technique, because the output information of these methods be mutually beneficial. Thus, we investigate the integrated front-end processing of VAD and NS, which can utilize each others' input-output information.
In addition, we examine the method of likelihood combination for VAD and relation between acoustical analisys condition and VAD through the experiments.
Keyword (in Japanese) (See Japanese page) 
(in English) statistical model / voice activity detection / noise suppression / integrated front-end processing / speech recognition / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 142, SP2008-45, pp. 13-18, July 2008.
Paper # SP2008-45 
Date of Issue 2008-07-10 (SP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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  
Conference Date 2008-07-17 - 2008-07-19 
Place (in Japanese) (See Japanese page) 
Place (in English) Iwate Prefectural Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech Recognition, Speech Understanding, Speech Dialogue, etc. 
Paper Information
Registration To SP 
Conference Code 2008-07-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) An evaluation and an examination of integration method of statistical model-based voice activity detection and noise suppression 
Sub Title (in English)  
Keyword(1) statistical model  
Keyword(2) voice activity detection  
Keyword(3) noise suppression  
Keyword(4) integrated front-end processing  
Keyword(5) speech recognition  
1st Author's Name Masakiyo Fujimoto  
1st Author's Affiliation NTT Communication Science Laboratories (NTT CS Labs.)
2nd Author's Name Kentaro Ishizuka  
2nd Author's Affiliation NTT Communication Science Laboratories (NTT CS Labs.)
3rd Author's Name Tomohiro Nakatani  
3rd Author's Affiliation NTT Communication Science Laboratories (NTT CS Labs.)
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Date Time 2008-07-17 14:00:00 
Presentation Time 30 
Registration for SP 
Paper # IEICE-SP2008-45 
Volume (vol) IEICE-108 
Number (no) no.142 
Page pp.13-18 
#Pages IEICE-6 
Date of Issue IEICE-SP-2008-07-10 

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