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Paper Abstract and Keywords
Presentation 2023-02-28 16:35
Generalized warping based on Lie group theory
Atsushi Miyashita, Tomoki Toda (Nagoya Univ.) EA2022-91 SIP2022-135 SP2022-55
Abstract (in Japanese) (See Japanese page) 
(in English) Speech is an ordered sequence of data. In speech processing, some processes, such as spectral frequency warping, speaking rate control, and mappings of speech to other sequences such as text, are represented by a warping transformation that preserves the order. In this report, we generalize warping using all-pass filters by analyzing it as a Lie group, and derive a general warping group, GW. Parametric representations of GW in time domain, frequency domain, and the tangent vector space are given and discussed systematically in terms of universality and implementation methods.
Keyword (in Japanese) (See Japanese page) 
(in English) warping / group theory / general warping group / systemization / / / /  
Reference Info. IEICE Tech. Rep., vol. 122, no. 389, SP2022-55, pp. 89-94, Feb. 2023.
Paper # SP2022-55 
Date of Issue 2023-02-21 (EA, SIP, SP) 
ISSN Online edition: ISSN 2432-6380
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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 EA2022-91 SIP2022-135 SP2022-55

Conference Information
Committee SP IPSJ-SLP EA SIP  
Conference Date 2023-02-28 - 2023-03-01 
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 2023-02-SP-SLP-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Generalized warping based on Lie group theory 
Sub Title (in English)  
Keyword(1) warping  
Keyword(2) group theory  
Keyword(3) general warping group  
Keyword(4) systemization  
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1st Author's Name Atsushi Miyashita  
1st Author's Affiliation Nagoya University (Nagoya Univ.)
2nd Author's Name Tomoki Toda  
2nd Author's Affiliation Nagoya University (Nagoya Univ.)
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Speaker Author-1 
Date Time 2023-02-28 16:35:00 
Presentation Time 20 minutes 
Registration for SP 
Paper # EA2022-91, SIP2022-135, SP2022-55 
Volume (vol) vol.122 
Number (no) no.387(EA), no.388(SIP), no.389(SP) 
Page pp.89-94 
#Pages
Date of Issue 2023-02-21 (EA, SIP, SP) 


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