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Paper Abstract and Keywords
Presentation 2016-01-29 10:50
Study on reduction of periodic noise contained in an impulse response
Ko Makino, Yutaka Kaneda (Tokyo Denki Univ.) EA2015-60
Abstract (in Japanese) (See Japanese page) 
(in English) Although the impulse response is an important acoustic characteristic of speakers or rooms, its signal-to-noise ratio (SNR) sometimes deteriorates because of environmental noise. Stationary environmental noise is classified into periodic and non-periodic noise. Conventionally, both types of noise have been suppressed together by increasing the energy of the measurement signal. However, it is expected that the periodic noise can be suppressed effectively by using its regularity. In this report, we propose a method of estimating the periodic component of measured noise, which is subtracted from the impulse response. Then, we combine the proposed method with measurement using a minimum-noise-swept-sine (MN-SS) signal, which is a measurement signal known to minimize the noise component in a measurement result. The simulation result indicates increased noise suppression using the proposed method.
Keyword (in Japanese) (See Japanese page) 
(in English) impulse response measurement / swept sine / noise reduction / periodic noise / power noise / / /  
Reference Info. IEICE Tech. Rep., vol. 115, no. 424, EA2015-60, pp. 33-38, Jan. 2016.
Paper # EA2015-60 
Date of Issue 2016-01-21 (EA) 
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 EA2015-60

Conference Information
Committee US EA  
Conference Date 2016-01-28 - 2016-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Kansai University, Centenary Memorial Hall 
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 2016-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Study on reduction of periodic noise contained in an impulse response 
Sub Title (in English)  
Keyword(1) impulse response measurement  
Keyword(2) swept sine  
Keyword(3) noise reduction  
Keyword(4) periodic noise  
Keyword(5) power noise  
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1st Author's Name Ko Makino  
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 2016-01-29 10:50:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2015-60 
Volume (vol) vol.115 
Number (no) no.424 
Page pp.33-38 
#Pages 6 
Date of Issue 2016-01-21 (EA) 

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