Presentation | 2007-09-28 DCT-EMD Based Hybrid Soft-Thresholding Technique with a Sub-band Approach for Speech Enhancement Erhan DEGER, M. K. Islam MOLLA, Keikichi HIROSE, Nobuaki MINEMATSU, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(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) |
Keyword(in English) | Speech enhancement / discrete cosine transform / empirical mode decomposition / soft-thresholding |
Paper # | SIP2007-96,SIS2007-32,SP2007-58 |
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Conference Information | |
Committee | SIS |
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Conference Date | 2007/9/21(1days) |
Place (in Japanese) | (See Japanese page) |
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Topics (in Japanese) | (See Japanese page) |
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Paper Information | |
Registration To | Smart Info-Media Systems (SIS) |
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Language | ENG |
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 |
1st Author's Name | Erhan DEGER |
1st Author's Affiliation | Graduate School of Information Science and Technology The University of Tokyo() |
2nd Author's Name | M. K. Islam MOLLA |
2nd Author's Affiliation | Graduate School of Information Science and Technology The University of Tokyo |
3rd Author's Name | Keikichi HIROSE |
3rd Author's Affiliation | Graduate School of Information Science and Technology The University of Tokyo |
4th Author's Name | Nobuaki MINEMATSU |
4th Author's Affiliation | Graduate School of Frontier Sciences The University of Tokyo |
Date | 2007-09-28 |
Paper # | SIP2007-96,SIS2007-32,SP2007-58 |
Volume (vol) | vol.107 |
Number (no) | 237 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |