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Paper Abstract and Keywords
Presentation 2013-05-16 16:20
Speech Enhancement Using Active Noise Control with Inverse Notch Filter
Kazuki Nakatani, Arata Kawamura, Youji Iiguni (Osaka Univ.) EA2013-11 SIP2013-11 SP2013-11
Abstract (in Japanese) (See Japanese page) 
(in English) This paper proposes a speech enhancement method based on active noise control (ANC) theory. Conventional ANC systems remove an observed signal, even if it includes a desired speech signal. To extract the desired speech signal, we introduce a speech reduction method as pre-processing of the ANC system. In this case, the ANC produce only the noise replica, since the input signal to the ANC does not include the speech signal. The speech reduction is achieved by subtracting an enhanced speech from the observed signal, where we use a spectral gain method to obtain the enhanced speech. Since the spectral gain method based on the FFT provides a delay depending on the analysis frame length, we replace the FFT with an inverse notch filter (INF) which is a narrow band-pass filter. Simulation results show that the proposed ANC system with INF is effective to extract the speech signal included in the observed signal.
Keyword (in Japanese) (See Japanese page) 
(in English) Active Noise Control / Filtered-x LMS / Speech Enhancement / Inverse Notch Filter / Spectral Gain / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 28, SIP2013-11, pp. 61-66, May 2013.
Paper # SIP2013-11 
Date of Issue 2013-05-09 (EA, SIP, SP) 
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. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF EA2013-11 SIP2013-11 SP2013-11

Conference Information
Committee SP EA SIP  
Conference Date 2013-05-16 - 2013-05-17 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English) Speech and Acoustic Signal Processing, Speech, and Related Topics 
Paper Information
Registration To SIP 
Conference Code 2013-05-SP-EA-SIP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Speech Enhancement Using Active Noise Control with Inverse Notch Filter 
Sub Title (in English)  
Keyword(1) Active Noise Control  
Keyword(2) Filtered-x LMS  
Keyword(3) Speech Enhancement  
Keyword(4) Inverse Notch Filter  
Keyword(5) Spectral Gain  
1st Author's Name Kazuki Nakatani  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Arata Kawamura  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Youji Iiguni  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2013-05-16 16:20:00 
Presentation Time 25 minutes 
Registration for SIP 
Paper # EA2013-11, SIP2013-11, SP2013-11 
Volume (vol) vol.113 
Number (no) no.27(EA), no.28(SIP), no.29(SP) 
Page pp.61-66 
Date of Issue 2013-05-09 (EA, SIP, SP) 

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