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Paper Abstract and Keywords
Presentation 2011-12-19 15:45
Concise representation of a matrix of basis functions for speech analysis and synthesis by using segmental NMF
Cheol Lee, Kazunori Mano (Shibaura Inst. of Tech.) NLC2011-40 SP2011-85
Abstract (in Japanese) (See Japanese page) 
(in English) We have proposed an analysis-synthesis method by using non-negative matrix factorization in phoneme-wise speech segments (segmental NMF). In this paper, a concise representation of a matrix of basis functions of STRAIGHT spectrum envelopes is proposed to reduce the number of dimensions of the NMF basis functions. Non-negative matrix factorization technique decomposes a matrix of STRAIGHT spectrum envelope sequences into a basis matrix and a weighting matrix, both of which have non-negative elements. The conventional STRAIGHT spectrum has 513 dimensions, which requires large amount of memory spaces. According to our previous research, the obtained basis matrix for each segmental STRAIGHT spectrum has very sparse components, and it is expected that such a matrix can be represented by simple combinations of some Gaussian mixture distributions. Some preliminary results of the approximation of the basis functions are discussed.
Keyword (in Japanese) (See Japanese page) 
(in English) speech segment / non-negative matrix factorization / STRAIGHT / Gaussian mixture distributions / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 365, SP2011-85, pp. 55-60, Dec. 2011.
Paper # SP2011-85 
Date of Issue 2011-12-12 (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 NLC2011-40 SP2011-85

Conference Information
Committee SP NLC IPSJ-SLP  
Conference Date 2011-12-19 - 2011-12-20 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2011-12-SP-NLC-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Concise representation of a matrix of basis functions for speech analysis and synthesis by using segmental NMF 
Sub Title (in English)  
Keyword(1) speech segment  
Keyword(2) non-negative matrix factorization  
Keyword(3) STRAIGHT  
Keyword(4) Gaussian mixture distributions  
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1st Author's Name Cheol Lee  
1st Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. of Tech.)
2nd Author's Name Kazunori Mano  
2nd Author's Affiliation Shibaura Institute of Technology (Shibaura Inst. of Tech.)
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Speaker Author-1 
Date Time 2011-12-19 15:45:00 
Presentation Time 90 minutes 
Registration for SP 
Paper # NLC2011-40, SP2011-85 
Volume (vol) vol.111 
Number (no) no.364(NLC), no.365(SP) 
Page pp.55-60 
#Pages 6 
Date of Issue 2011-12-12 (NLC, SP) 

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