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Paper Abstract and Keywords
Presentation 2011-01-27 15:45
Relation between musical noise generation in nonlinear signal processing and speech recognition performance
Ryoichi Miyazaki, Takayuki Inoue, Nobuhisa Hirata, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST), Tomoya Takatani (TOYOTA) SP2010-106
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we discuss a relation between musical noise generation in nonlinear signal processing and
speech recognition performance. Recently, applications using speech recognition, e.g., spoken dialogue robots, have
increased. In past studies, we have commonly used a cepstral distortion as a measure to predict the recognition
performance. However, to measure the cepstral distortion, we need clean speech signals before being added with
noise, but they can not be measured in real environments. Therefore, in this paper, we introduce a kurtosis ra-
tio which is measurable in real environments and corresponding to the musical noise generalization instead of the
cepstral distortion.
Keyword (in Japanese) (See Japanese page) 
(in English) Speech recognition / Kurtosis ratio / Blind source separation / Musical noise / Nonlinear noise reduction / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 401, SP2010-106, pp. 19-24, Jan. 2011.
Paper # SP2010-106 
Date of Issue 2011-01-20 (SP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 2011-01-27 - 2011-01-28 
Place (in Japanese) (See Japanese page) 
Place (in English) NICT 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Robustness against noise, etc 
Paper Information
Registration To SP 
Conference Code 2011-01-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Relation between musical noise generation in nonlinear signal processing and speech recognition performance 
Sub Title (in English)  
Keyword(1) Speech recognition  
Keyword(2) Kurtosis ratio  
Keyword(3) Blind source separation  
Keyword(4) Musical noise  
Keyword(5) Nonlinear noise reduction  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Ryoichi Miyazaki  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Takayuki Inoue  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Nobuhisa Hirata  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Hiroshi Saruwatari  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
5th Author's Name Kiyohiro Shikano  
5th Author's Affiliation Nara Institute of Science and Technology (NAIST)
6th Author's Name Tomoya Takatani  
6th Author's Affiliation TOYOTA MOTOR CORPORATION (TOYOTA)
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Speaker Author-1 
Date Time 2011-01-27 15:45:00 
Presentation Time 30 minutes 
Registration for SP 
Paper # SP2010-106 
Volume (vol) vol.110 
Number (no) no.401 
Page pp.19-24 
#Pages
Date of Issue 2011-01-20 (SP) 


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