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Paper Abstract and Keywords
Presentation 2012-01-26 13:00
Evaluation of Blind Speech Extraction for Speech Archiving of Poster Session
Kodai Okamoto, Ryoichi Miyazaki, Hiroshi Saruwatari, Kiyohiro Shikano (NAIST) EA2011-107
Abstract (in Japanese) (See Japanese page) 
(in English) In this report, we propose a 19-channel microphone array recording system used for blind speech extraction and diarization with image information to make speech archives of poster session.
This system realizes noise reduction of 8.9 dB to 34.0 dB under the conditions of cepstral distortion of 4.9 dB to 6.6 dB when a presenter is extracted, and noise reduction of 4.6 dB to 10.1 dB under the conditions of cepstral distortion of 6.0 dB to 8.1 dB when a questioner is extracted.
Also, it is revealed that the system's diarization accuracy corresponds to {\itshape F-measure} of 0.99 when a presenter is extracted and {\itshape F-measure} of 0.88 when a questioner is extracted.
Keyword (in Japanese) (See Japanese page) 
(in English) Microphone Array Signal Processing / Blind Source Separation / Independent Component Analysis / Blind Spatial Subtraction Array / Diarization / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 402, EA2011-107, pp. 19-24, Jan. 2012.
Paper # EA2011-107 
Date of Issue 2012-01-19 (EA) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EA2011-107

Conference Information
Committee EA US  
Conference Date 2012-01-26 - 2012-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics,and Related Topics 
Paper Information
Registration To EA 
Conference Code 2012-01-EA-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Evaluation of Blind Speech Extraction for Speech Archiving of Poster Session 
Sub Title (in English)  
Keyword(1) Microphone Array Signal Processing  
Keyword(2) Blind Source Separation  
Keyword(3) Independent Component Analysis  
Keyword(4) Blind Spatial Subtraction Array  
Keyword(5) Diarization  
1st Author's Name Kodai Okamoto  
1st Author's Affiliation Nara Institute of Science and Technology (NAIST)
2nd Author's Name Ryoichi Miyazaki  
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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Date Time 2012-01-26 13:00:00 
Presentation Time 30 
Registration for EA 
Paper # IEICE-EA2011-107 
Volume (vol) IEICE-111 
Number (no) no.402 
Page pp.19-24 
#Pages IEICE-6 
Date of Issue IEICE-EA-2012-01-19 

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