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Paper Abstract and Keywords
Presentation 2014-03-28 14:25
Noise Estimation Based on the Temporal Variation Distribution of SNR
Masaru Fujieda, Takashi Yazu (OKI) EA2013-121
Abstract (in Japanese) (See Japanese page) 
(in English) An approach for noise estimation focusing on temporal variation of SNR is proposed. To the present, although a various attempts have been proposed to improve the accuracy of non-stationary noise estimation, these attempts cause the trade-off between improvement of the noise estimation accuracy and reduction of the speech false detection rate in many cases. To solve this issue, we choose the procedure to estimate the stationary noise and the non-stationary noise respectively. In this paper, the stationary noise estimation is described. In the proposed method, first, the probabilistic model is designed based on the temporal variation distribution of SNR on the stationary noise. And then the stationary noise with high accuracy is achieved by optimizing this probabilistic model by means of the MAP estimation. The simulation shows that the proposed method is able to achieve the noise suppression with smaller distortion than the conventional methods.
Keyword (in Japanese) (See Japanese page) 
(in English) Noise Estimation / Stationary Noise / Temporal Variation Distribution of SNR / MAP Estimation / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 503, EA2013-121, pp. 7-12, March 2014.
Paper # EA2013-121 
Date of Issue 2014-03-21 (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 EA2013-121

Conference Information
Committee EA  
Conference Date 2014-03-28 - 2014-03-28 
Place (in Japanese) (See Japanese page) 
Place (in English) NHK Science & Technology Research Labs. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics 
Paper Information
Registration To EA 
Conference Code 2014-03-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Noise Estimation Based on the Temporal Variation Distribution of SNR 
Sub Title (in English)  
Keyword(1) Noise Estimation  
Keyword(2) Stationary Noise  
Keyword(3) Temporal Variation Distribution of SNR  
Keyword(4) MAP Estimation  
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1st Author's Name Masaru Fujieda  
1st Author's Affiliation Oki Electric Industry Co., Ltd (OKI)
2nd Author's Name Takashi Yazu  
2nd Author's Affiliation Oki Electric Industry Co., Ltd (OKI)
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Speaker Author-1 
Date Time 2014-03-28 14:25:00 
Presentation Time 25 minutes 
Registration for EA 
Paper # EA2013-121 
Volume (vol) vol.113 
Number (no) no.503 
Page pp.7-12 
#Pages 6 
Date of Issue 2014-03-21 (EA) 

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