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Paper Abstract and Keywords
Presentation 2012-11-16 14:20
A study on impulse response waveform extraction under environmental noise
Isao Shibusawa, Yutaka Kaneda (Tokyo Denki Univ) EA2012-90 EMM2012-72
Abstract (in Japanese) (See Japanese page) 
(in English) The impulse response contains a large amount of information about the acoustic characteristics of a loudspeaker or a room. Therefore, the measurement of the impulse response is very important. However, the SN ratio is reduced when enviromental noise is added. To increase the SN ratio, the impulse response can be extracted on the time axis. However, this discauses loss of the frequency components with a high SN ratio. In this paper, we propose a new method that mitigates the problems of the conventional method using a frequency-band-wise extraction and Wiener filter, and we study the extraction under real environmental noise. As a result, 1) the effectiveness of the proposed method is confirmed from the reduced mean squared error, 2) under a non-stationary noise environment, the MLS method is less affected by noise than the TSP method.
Keyword (in Japanese) (See Japanese page) 
(in English) impulse response / response extraction / Wiener filter / TSPmethod / MLSmethod / / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 292, EA2012-90, pp. 51-56, Nov. 2012.
Paper # EA2012-90 
Date of Issue 2012-11-09 (EA, EMM) 
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)
Download PDF EA2012-90 EMM2012-72

Conference Information
Committee EA EMM  
Conference Date 2012-11-16 - 2012-11-17 
Place (in Japanese) (See Japanese page) 
Place (in English) OITA Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To EA 
Conference Code 2012-11-EA-EMM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A study on impulse response waveform extraction under environmental noise 
Sub Title (in English)  
Keyword(1) impulse response  
Keyword(2) response extraction  
Keyword(3) Wiener filter  
Keyword(4) TSPmethod  
Keyword(5) MLSmethod  
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1st Author's Name Isao Shibusawa  
1st Author's Affiliation Tokyo Denki University (Tokyo Denki Univ)
2nd Author's Name Yutaka Kaneda  
2nd Author's Affiliation Tokyo Denki University (Tokyo Denki Univ)
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Speaker Author-1 
Date Time 2012-11-16 14:20:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2012-90, EMM2012-72 
Volume (vol) vol.112 
Number (no) no.292(EA), no.293(EMM) 
Page pp.51-56 
#Pages 6 
Date of Issue 2012-11-09 (EA, EMM) 

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