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Paper Abstract and Keywords
Presentation 2008-10-23 14:30
Development of Three Dimensional Vocal Tract Mechanism for Anthropomorphic Talking Robot aimed to improve Resonance
Kotaro Fukui, Yuma Ishikawa, Keisuke Ohno, Nana Sakakibara, Atsuo Takanishi, Masaaki Honda (Waseda Univ.) SP2008-59
Abstract (in Japanese) (See Japanese page) 
(in English) We developed a new three dimensional vocal tract mechanical model for anthropomorphic talking robot WT-7R (Waseda Talker No. 7 Refined), to improve the resonance characteristics of the vocal tract. The Waseda Talker talking robot series is aimed to reproduce human speech mechanism with three-dimensional accuracy. In the previous model WT-7(Waseda Talker No.7), the tongue mechanism is made of rigid links and cover made of thermoplastic rubber “Septon”. This mechanism could deform tongue shape and work as a part of the vocal tract, but the thickness of cover is not enough to prevent sound leakage which is resulted in insufficient resonance and the produced sound become unclear. In WT-7R, to resolve this problem, the inside of the tongue was filled with liquid. We adopted ethylene glycol as the liquid; it has less chemical damage to Septon and is enough to prevent the acoustic leakage. We used oil seal and liquid gasket to prevent liquid leakage. WT-7 also has problems in the movable range of t he tongue deformation and the lip opening. These problems are also improved in WT-7 by changing the mechanical design. With these improvements, the vowel quality of WT-7R becomes clearer than that of the previous robot, and the band width of the formant peak becomes narrow.
Keyword (in Japanese) (See Japanese page) 
(in English) Talking Robot / Speech Production / Humanoid / Vocal Tract Resonance Characteristic / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 265, SP2008-59, pp. 19-24, Oct. 2008.
Paper # SP2008-59 
Date of Issue 2008-10-16 (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)
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Conference Information
Committee SP  
Conference Date 2008-10-23 - 2008-10-24 
Place (in Japanese) (See Japanese page) 
Place (in English) Kumamoto Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech Sysnthesis, Speech Production, Prosody, etc. 
Paper Information
Registration To SP 
Conference Code 2008-10-SP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Three Dimensional Vocal Tract Mechanism for Anthropomorphic Talking Robot aimed to improve Resonance 
Sub Title (in English)  
Keyword(1) Talking Robot  
Keyword(2) Speech Production  
Keyword(3) Humanoid  
Keyword(4) Vocal Tract Resonance Characteristic  
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1st Author's Name Kotaro Fukui  
1st Author's Affiliation Waseda University (Waseda Univ.)
2nd Author's Name Yuma Ishikawa  
2nd Author's Affiliation Waseda University (Waseda Univ.)
3rd Author's Name Keisuke Ohno  
3rd Author's Affiliation Waseda University (Waseda Univ.)
4th Author's Name Nana Sakakibara  
4th Author's Affiliation Waseda University (Waseda Univ.)
5th Author's Name Atsuo Takanishi  
5th Author's Affiliation Waseda University (Waseda Univ.)
6th Author's Name Masaaki Honda  
6th Author's Affiliation Waseda University (Waseda Univ.)
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Speaker Author-1 
Date Time 2008-10-23 14:30:00 
Presentation Time 30 minutes 
Registration for SP 
Paper # SP2008-59 
Volume (vol) vol.108 
Number (no) no.265 
Page pp.19-24 
#Pages 6 
Date of Issue 2008-10-16 (SP) 

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