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Paper Abstract and Keywords
Presentation 2016-08-24 16:15
[Poster Presentation] Joint Enhancement of Spectral and Cepstral Sequences of Noisy Speech
Li Li (Univ.Tsukuba), Hirokazu Kameoka, Takuya Higuchi (NTT), Hiroshi Saruwatari (Univ.Tokyo), Shoji Makino (Univ.Tsukuba) SP2016-32
Abstract (in Japanese) (See Japanese page) 
(in English) While spectral domain speech enhancement algorithms using non-negative matrix factorization (NMF) are powerful in terms of signal recovery accuracy (e.g., signal-to-noise ratio), they do not necessarily lead to an improvement in the quality of the enhanced speech in the feature domain.
This implies that naively using these algorithms as front-end processing for e.g., speech recognition and speech conversion does not always lead to satisfactory results.
To address this problem, this paper proposes a novel method that aims to jointly enhance the spectral and cepstral sequences of noisy speech, by optimizing a combined objective function consisting of an NMF-based model-fitting criterion defined in the spectral domain and a Gaussian mixture model (GMM)-based probability distribution defined in the cepstral domain.
Keyword (in Japanese) (See Japanese page) 
(in English) speech enhancement / Gaussian mixture model / non-negative matrix factorization / mel-frequency cepstral coefficients / majorization-minimization / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 189, SP2016-32, pp. 29-32, Aug. 2016.
Paper # SP2016-32 
Date of Issue 2016-08-17 (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 2016-08-24 - 2016-08-25 
Place (in Japanese) (See Japanese page) 
Place (in English) ACCMS, Kyoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Audio event processing, etc. 
Paper Information
Registration To SP 
Conference Code 2016-08-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Joint Enhancement of Spectral and Cepstral Sequences of Noisy Speech 
Sub Title (in English)  
Keyword(1) speech enhancement  
Keyword(2) Gaussian mixture model  
Keyword(3) non-negative matrix factorization  
Keyword(4) mel-frequency cepstral coefficients  
Keyword(5) majorization-minimization  
1st Author's Name Li Li  
1st Author's Affiliation University of Tsukuba (Univ.Tsukuba)
2nd Author's Name Hirokazu Kameoka  
2nd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
3rd Author's Name Takuya Higuchi  
3rd Author's Affiliation Nippon Telegraph and Telephone Corporation (NTT)
4th Author's Name Hiroshi Saruwatari  
4th Author's Affiliation University of Tokyo (Univ.Tokyo)
5th Author's Name Shoji Makino  
5th Author's Affiliation University of Tsukuba (Univ.Tsukuba)
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Speaker Author-1 
Date Time 2016-08-24 16:15:00 
Presentation Time 90 minutes 
Registration for SP 
Paper # SP2016-32 
Volume (vol) vol.116 
Number (no) no.189 
Page pp.29-32 
Date of Issue 2016-08-17 (SP) 

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