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| Presentation | 2009-05-29 10:30 Robust estimation of fundamental frequencies of speech signals in noisy environments based on signal filtering by empirical mode decomposition Tetsuya Matsuda, Keikichi Hirose, Nobuaki Minematsu (Univ. of Tokyo)  EA2009-10 SIP2009-10 SP2009-15 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | A number of methods have already been developed for the estimation of fundamental frequencies of speech signals. However, almost all the methods observe the signals in a short time span and assume them being linear and stationary in the span, which is not correct strictly speaking. This situation limits precision of the estimation. While the empirical mode decomposition (EMD) is a method for signal analysis not assuming linear and stationary features of signals, it is rather difficult to apply it to the pitch estimation, since components corresponding to fundamental frequencies may spread to several functions after decomposition. This paper introduces a new method of pitch estimation based on EMD, where the problem is solved by applying EMD on the auto-correlation function of the signal. Since, in the lag-time domain, the signal energy concentrates to frequencies corresponding to signal structures, robust estimation of fundamental frequencies is realized by properly selecting a function from decomposed ones. Through experiments on pitch estimation in noisy environments, the robustness of the proposed method was shown. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | pitch estimation / noisy environment / empirical mode decomposition / autocorrelation / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 109, no. 57, SP2009-15, pp. 49-54, May 2009. | |
| Paper # | SP2009-15 | |
| Date of Issue | 2009-05-21 (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 | EA2009-10 SIP2009-10 SP2009-15 |
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| Conference Information | |
| Committee | EA SIP SP |
| Conference Date | 2009-05-28 - 2009-05-29 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2009-05-EA-SIP-SP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Robust estimation of fundamental frequencies of speech signals in noisy environments based on signal filtering by empirical mode decomposition |
| Sub Title (in English) | |
| Keyword(1) | pitch estimation |
| Keyword(2) | noisy environment |
| Keyword(3) | empirical mode decomposition |
| Keyword(4) | autocorrelation |
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| 1st Author's Name | Tetsuya Matsuda |
| 1st Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 2nd Author's Name | Keikichi Hirose |
| 2nd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
| 3rd Author's Name | Nobuaki Minematsu |
| 3rd Author's Affiliation | The University of Tokyo (Univ. of Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2009-05-29 10:30:00 |
| Presentation Time | 30 minutes |
| Registration for | SP |
| Paper # | EA2009-10, SIP2009-10, SP2009-15 |
| Volume (vol) | vol.109 |
| Number (no) | no.55(EA), no.56(SIP), no.57(SP) |
| Page | pp.49-54 |
| #Pages | 6 |
| Date of Issue | 2009-05-21 (EA, SIP, SP) |
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