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Paper Abstract and Keywords
Presentation 2012-03-09 16:45
Effects of frequency-band elimination on syllable identification in Japanese noise-vocoded speech -- Analyses with two speakers --
Kiyoto Noguchi, Yuichi Satsukawa, Kazuo Ueda, Yoshitaka Nakajima (Kyushu Univ.) SP2011-173
Abstract (in Japanese) (See Japanese page) 
(in English) The present investigation aimed at specifying the perceptual roles of each frequency bands in 4-band-noise-vocoded speech, whose bands were determined with factor analyses of power fluctuation of critical-band-filtered Japanese speech [Ueda, Nakajima, and Satsukawa (2010).Proc. 26th Ann. Meet. Inter. Soc. Psychophys., 39-44.], by eliminating one of the frequency bands.Amounts of information transmitted were calculated, based on confusion matrices of syllable identification.Eliminating the lowest band (50-570 Hz) crucially decreased amounts of information identifying consonants, whereas eliminating the second lowest band (570-1850 Hz) decreased amounts of information identifying vowels desicively, by altering almost all vowels into/i/.These results suggested that temporal relation between the lowest band and the other band was critical in consonant identification.Eliminating the third lowest band~(1850-4000 Hz) affected vowel identification slightly.Eliminating the highest band~(4000-7000 Hz) caused over all decrement of amount of information transmitted.
Keyword (in Japanese) (See Japanese page) 
(in English) Japanese mono-syllable / confusion matrix / amount of information transmitted / voice onset time / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 471, SP2011-173, pp. 101-106, March 2012.
Paper # SP2011-173 
Date of Issue 2012-03-01 (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)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF SP2011-173

Conference Information
Committee SP  
Conference Date 2012-03-08 - 2012-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Riken Brain Science Institute 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To SP 
Conference Code 2012-03-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effects of frequency-band elimination on syllable identification in Japanese noise-vocoded speech 
Sub Title (in English) Analyses with two speakers 
Keyword(1) Japanese mono-syllable  
Keyword(2) confusion matrix  
Keyword(3) amount of information transmitted  
Keyword(4) voice onset time  
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1st Author's Name Kiyoto Noguchi  
1st Author's Affiliation Kyushu University (Kyushu Univ.)
2nd Author's Name Yuichi Satsukawa  
2nd Author's Affiliation Kyushu University (Kyushu Univ.)
3rd Author's Name Kazuo Ueda  
3rd Author's Affiliation Kyushu University (Kyushu Univ.)
4th Author's Name Yoshitaka Nakajima  
4th Author's Affiliation Kyushu University (Kyushu Univ.)
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Speaker Author-1 
Date Time 2012-03-09 16:45:00 
Presentation Time 30 minutes 
Registration for SP 
Paper # SP2011-173 
Volume (vol) vol.111 
Number (no) no.471 
Page pp.101-106 
#Pages 6 
Date of Issue 2012-03-01 (SP) 

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