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Paper Abstract and Keywords
Presentation 2023-06-23 13:50
Feature Representation of Japanese Pitch Accent and its Perceptual Adequacy -- Fundamental Study for Application to Japanese Speech Education --
Ikuyo Masuda-Katsuse (Kindai Univ.) SP2023-3
Abstract (in Japanese) (See Japanese page) 
(in English) For the purpose of application to Japanese speech education, pitch patterns were modeled by Sequential VAE to obtain a feature representation of pitch accent. In this model, pitch patterns are decomposed into time-invariant and time-variant features, with time-invariant representing accent and time-variant representing voice/unvoice at each time point. First, GMM regression of the time-invariant latent variables confirmed that the time-invariant latent variables represent accent features. Next, the pitch frequency of speech was transformed by reconstructing 49 different pitch patterns for each word by varying only the value of the time-invariant latent variable. Subjects rated the adequacy of the pitch patterns of the transformed speech. Compared to the distribution of accent features in the time-invariant latent space, the distribution of the rating averages tended to have relatively high values for accent types other than the teacher accent type.
Keyword (in Japanese) (See Japanese page) 
(in English) pitch accent / Japanese speech learning / variational auto encoder / latent variables / speech perception / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 88, SP2023-3, pp. 8-13, June 2023.
Paper # SP2023-3 
Date of Issue 2023-06-16 (SP) 
ISSN 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 SP2023-3

Conference Information
Committee SP IPSJ-MUS IPSJ-SLP  
Conference Date 2023-06-23 - 2023-06-24 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To SP 
Conference Code 2023-06-SP-MUS-SLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Feature Representation of Japanese Pitch Accent and its Perceptual Adequacy 
Sub Title (in English) Fundamental Study for Application to Japanese Speech Education 
Keyword(1) pitch accent  
Keyword(2) Japanese speech learning  
Keyword(3) variational auto encoder  
Keyword(4) latent variables  
Keyword(5) speech perception  
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1st Author's Name Ikuyo Masuda-Katsuse  
1st Author's Affiliation Kindai University (Kindai Univ.)
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Speaker Author-1 
Date Time 2023-06-23 13:50:00 
Presentation Time 140 minutes 
Registration for SP 
Paper # SP2023-3 
Volume (vol) vol.123 
Number (no) no.88 
Page pp.8-13 
#Pages 6 
Date of Issue 2023-06-16 (SP) 

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