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Paper Abstract and Keywords
Presentation 2008-05-29 16:15
Development of Hands-Free Spoken Dialogue System with Real-Time Blind Spatial Subtraction Array
Yu Takahashi, Keiichi Osako, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST) EA2008-16 SIP2008-25
Abstract (in Japanese) (See Japanese page) 
(in English) In this paper, we construct a hands-free robot spoken dialogue system based on the real-time blind spatial subtraction
array (BSSA) and evaluate the system. BSSA is the blind source extraction method, and the source extraction in BSSA is carried out by subtracting the power spectrum of the estimated noise signal by the independent component analysis (ICA) from the power spectrum of the target speech partly enhanced signal. Although BSSA can reduce noise signal efficiently, ICA consumes huge amount of computational costs. Thus it is difficult to run BSSA in real-time. In this paper, we newly propose a
real-time architecture of BSSA and construct a hands-free robot spoken dialogue system based on the real-time BSSA. In the hands-free robot spoken dialogue system with the real-time BSSA, 6% improvement of the speech recognition result can be seen compared with the conventional speech enhancement methods.
Keyword (in Japanese) (See Japanese page) 
(in English) hands-free / microphone array signal processing / blind source separation / independent component analysis / real–time / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 68, EA2008-16, pp. 59-64, May 2008.
Paper # EA2008-16 
Date of Issue 2008-05-22 (EA, SIP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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 EA2008-16 SIP2008-25

Conference Information
Committee SIP EA  
Conference Date 2008-05-29 - 2008-05-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2008-05-SIP-EA 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Hands-Free Spoken Dialogue System with Real-Time Blind Spatial Subtraction Array 
Sub Title (in English)  
Keyword(1) hands-free  
Keyword(2) microphone array signal processing  
Keyword(3) blind source separation  
Keyword(4) independent component analysis  
Keyword(5) real–time  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Yu Takahashi  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Keiichi Osako  
2nd Author's Affiliation Nara Institute of Science and Technology (NAIST)
3rd Author's Name Hiroshi Saruwatari  
3rd Author's Affiliation Nara Institute of Science and Technology (NAIST)
4th Author's Name Kiyohiro Shikano  
4th Author's Affiliation Nara Institute of Science and Technology (NAIST)
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Speaker Author-1 
Date Time 2008-05-29 16:15:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2008-16, SIP2008-25 
Volume (vol) vol.108 
Number (no) no.68(EA), no.70(SIP) 
Page pp.59-64 
#Pages
Date of Issue 2008-05-22 (EA, SIP) 


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