Paper Abstract and Keywords |
Presentation |
2018-03-20 12:55
Study on Noise Suppression Method based on Modulation Spectrum Takuto Isoyama, Masashi Unoki (JAIST) EA2017-168 SIP2017-177 SP2017-151 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
It is known that classical and typical methods for noise suppression can successfully suppress stationary noises. However, non-stationary noises such as intermittent and impulsive noises have not been sufficiently suppressed since these methods have not focused on temporal characteristics. This paper aims to investigate a method for suppressing the stationary, intermittent and impulsive noises besed on their modulation spectrum (MS) as temporal characteristics. MS features in the stationary, intermittent and impulsive noises were investigated and these features were removed from the observed signal to suppress these noises. The direct-current component of MS in the stationary noise, harmonicity of MS in the intermittent noise, and higher modulation-frequency components in the impulsive noise were removed. As results, the following advantages were confirmed: (1) sound pressure level of the noise was decreased, (2) signal-to-noise ratio of the noisy speech was improved, and (3) loudness and roughness of the noises was decreased. These results indicated that the non-stationary noises are successfully suppressed using their MS characteristics. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Noise suppression / modulation spectral analysis / intermittent noise / impulsive noise / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 515, EA2017-168, pp. 361-366, March 2018. |
Paper # |
EA2017-168 |
Date of Issue |
2018-03-12 (EA, SIP, SP) |
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) |
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EA2017-168 SIP2017-177 SP2017-151 |
Conference Information |
Committee |
SIP EA SP MI |
Conference Date |
2018-03-19 - 2018-03-20 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
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Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics [SIP, EA, SP]/ Medical Image Engineering, Analysis, Recognition, etc. [MI] |
Paper Information |
Registration To |
EA |
Conference Code |
2018-03-SIP-EA-SP-MI |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Study on Noise Suppression Method based on Modulation Spectrum |
Sub Title (in English) |
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Keyword(1) |
Noise suppression |
Keyword(2) |
modulation spectral analysis |
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intermittent noise |
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impulsive noise |
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1st Author's Name |
Takuto Isoyama |
1st Author's Affiliation |
Japan Advanced Institute of Science and Technology (JAIST) |
2nd Author's Name |
Masashi Unoki |
2nd Author's Affiliation |
Japan Advanced Institute of Science and Technology (JAIST) |
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Speaker |
Author-1 |
Date Time |
2018-03-20 12:55:00 |
Presentation Time |
25 minutes |
Registration for |
EA |
Paper # |
EA2017-168, SIP2017-177, SP2017-151 |
Volume (vol) |
vol.117 |
Number (no) |
no.515(EA), no.516(SIP), no.517(SP) |
Page |
pp.361-366 |
#Pages |
6 |
Date of Issue |
2018-03-12 (EA, SIP, SP) |
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