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| Presentation | 2016-03-28 13:15 [Poster Presentation] Noise Suppression by Modified Zero Phase Signal Analysis Akira Tanaka, Yuki Amma (Hokkaido Univ.), Arata Kawamura (Osaka Univ.)  EA2015-92 SIP2015-141 SP2015-120 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The zero phase signal analysis is known as one of signal transformations, by which a given signal is transformed into its zero phase signal, which is defined as the inverse Fourier transform of the amplitude spectrum of the given signal. One of remarkable properties of the zero phase signal analysis is that it converts white or impulse noise to an impulse signal at the origin. On the basis of this property of the zero phase signal analysis, Kamamori et al. proposed an effective noise suppressor. We can suppress the noise in audio signals contaminated by both of white and impulse noises without a priori knowledge, such as the power of the noise, by this method. In this method, the operator, that transforms a given signal into its zero phase signal, is assumed to be linear. However, this assumption does not hold in general, which may result degradation of noise suppression performance. In this paper, we introduce an improved version of this method by correction of the zero phase signal of the observation so that the linearlity of the operator is established as much as possible. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | noise suppression / zero phase signal analysis / white noise / impluse noise / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 115, no. 522, SIP2015-141, pp. 153-157, March 2016. | |
| Paper # | SIP2015-141 | |
| Date of Issue | 2016-03-21 (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) | |
| Download PDF | EA2015-92 SIP2015-141 SP2015-120 |
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| Conference Information | |
| Committee | EA SP SIP |
| Conference Date | 2016-03-28 - 2016-03-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center B-ConPlaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Engineering/Electro Acoustics, Speech, Signal Processing, and Related Topics |
| Paper Information | |
| Registration To | SIP |
| Conference Code | 2016-03-EA-SP-SIP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Noise Suppression by Modified Zero Phase Signal Analysis |
| Sub Title (in English) | |
| Keyword(1) | noise suppression |
| Keyword(2) | zero phase signal analysis |
| Keyword(3) | white noise |
| Keyword(4) | impluse noise |
| Keyword(5) | |
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| 1st Author's Name | Akira Tanaka |
| 1st Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 2nd Author's Name | Yuki Amma |
| 2nd Author's Affiliation | Hokkaido University (Hokkaido Univ.) |
| 3rd Author's Name | Arata Kawamura |
| 3rd Author's Affiliation | Osaka University (Osaka Univ.) |
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| Speaker | Author-1 |
| Date Time | 2016-03-28 13:15:00 |
| Presentation Time | 90 minutes |
| Registration for | SIP |
| Paper # | EA2015-92, SIP2015-141, SP2015-120 |
| Volume (vol) | vol.115 |
| Number (no) | no.521(EA), no.522(SIP), no.523(SP) |
| Page | pp.153-157 |
| #Pages | 5 |
| Date of Issue | 2016-03-21 (EA, SIP, SP) |
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