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| Presentation | 2007-09-28 09:55 DCT-EMD Based Hybrid Soft-Thresholding Technique with a Sub-band Approach for Speech Enhancement Erhan Deger, Md. Khademul Islam Molla, Keikichi Hirose, Nobuaki Minematsu (Univ. Tokyo)  SIP2007-96 SIS2007-32 SP2007-58 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | This paper presents a two-stage soft-thresholding algorithm based on Discrete Cosine Transform (DCT) and Empirical Mode Decomposition (EMD). In the first stage, noisy speech is decomposed into eight frequency bands and a specific noise variance is calculated for each one. Based on this variance, each band is denoised using soft-thresholding in DCT domain. The remaining noise is eliminated in the second stage through a time domain soft-thresholding strategy adapted to the intrinsic mode functions (IMFs) of the first stage signal. Significantly better SNR improvement and perceptual speech quality results prove the superiority of the proposed algorithm over recently reported techniques. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Speech enhancement / discrete cosine transform / empirical mode decomposition / soft-thresholding / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 107, no. 239, SP2007-58, pp. 7-12, Sept. 2007. | |
| Paper # | SP2007-58 | |
| Date of Issue | 2007-09-21 (SIP, SIS, 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 | SIP2007-96 SIS2007-32 SP2007-58 |
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| Conference Information | |
| Committee | SIP SIS SP |
| Conference Date | 2007-09-27 - 2007-09-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Nagoya Inst. of Tech. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Signal Processing, Intelligent Multimedia Systems, etc. |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2007-09-SIP-SIS-SP |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | DCT-EMD Based Hybrid Soft-Thresholding Technique with a Sub-band Approach for Speech Enhancement |
| Sub Title (in English) | |
| Keyword(1) | Speech enhancement |
| Keyword(2) | discrete cosine transform |
| Keyword(3) | empirical mode decomposition |
| Keyword(4) | soft-thresholding |
| Keyword(5) | |
| Keyword(6) | |
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| Keyword(8) | |
| 1st Author's Name | Erhan Deger |
| 1st Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 2nd Author's Name | Md. Khademul Islam Molla |
| 2nd Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 3rd Author's Name | Keikichi Hirose |
| 3rd Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 4th Author's Name | Nobuaki Minematsu |
| 4th Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2007-09-28 09:55:00 |
| Presentation Time | 25 minutes |
| Registration for | SP |
| Paper # | SIP2007-96, SIS2007-32, SP2007-58 |
| Volume (vol) | vol.107 |
| Number (no) | no.235(SIP), no.237(SIS), no.239(SP) |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2007-09-21 (SIP, SIS, SP) |
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