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Paper Abstract and Keywords
Presentation 2026-05-22 15:15
Effects of presenting time lags caused by speech rate conversion to speakers via vibrotactile stimuli -- Comparative study of visual and vibrotactile feedback focusing on speech timing control --
Yusuke Kunimatsu, Hiroto Saito (Tokyo Denki Univ.) HCS2026-11 HIP2026-11
Abstract (in Japanese) (See Japanese page) 
(in English) Speech rate conversion is a listening assistance technology that slows down speech while maintaining pitch, thereby aiding conversation comprehension. When applied to real-time conversation, a time lag arises between the speaker and the listener, which causes speech overlap. In this study, we applied vibrotactile feedback as a stimulus to convey this time lag to the speaker and compared it with the conventional method of visual feedback. The vibration stimulus was implemented as a 12-level vibration pattern with the aim of replicating the function of visual feedback in presenting the quantitative and temporal progression of the time delay. The results showed that the vibration was not used as the quantitative information initially assumed, but rather as a cue indicating changes or pauses, and was used to adjust speech timing. These findings provide new design guidelines for using vibration to indicate time delays in speech rate conversion.
Keyword (in Japanese) (See Japanese page) 
(in English) speech rate conversion / vibrotactile feedback / time lag perception / / / / /  
Reference Info. IEICE Tech. Rep., vol. 126, no. 38, HCS2026-11, pp. 50-55, May 2026.
Paper # HCS2026-11 
Date of Issue 2026-05-15 (HCS, HIP) 
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 HCS2026-11 HIP2026-11

Conference Information
Committee HIP HCS HI-SIGCOASTER  
Conference Date 2026-05-22 - 2026-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English) Okinawa Industry Support Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Communication Enhancing, Human Communications, and Human Information Processing 
Paper Information
Registration To HCS 
Conference Code 2026-05-HIP-HCS-SIGCOASTER 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effects of presenting time lags caused by speech rate conversion to speakers via vibrotactile stimuli 
Sub Title (in English) Comparative study of visual and vibrotactile feedback focusing on speech timing control 
Keyword(1) speech rate conversion  
Keyword(2) vibrotactile feedback  
Keyword(3) time lag perception  
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1st Author's Name Yusuke Kunimatsu  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
2nd Author's Name Hiroto Saito  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ.)
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Speaker Author-1 
Date Time 2026-05-22 15:15:00 
Presentation Time 20 minutes 
Registration for HCS 
Paper # HCS2026-11, HIP2026-11 
Volume (vol) vol.126 
Number (no) no.38(HCS), no.39(HIP) 
Page pp.50-55 
#Pages 6 
Date of Issue 2026-05-15 (HCS, HIP) 

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