| Presentation | 2008-09-26 A speech enhancement method using spectral probability density function of non-speech segments Arata KAWAMURA, Thanhikam WEERAWUT, Youji IIGUNI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we propose a speech enhancement algorithm based on the MAP estimation using variable speech spectral distibution. To extract high quality speech signals, the proposed speech enhancer adaptively changes the speech spectral density used in the MAP estimation according to the observed spectral power. In speech segments, the speech spectral density approaches to Rayleigh distribution to keep the quality of the enhanced speech. In non-speech segments, it approaches to a delta function to reduce noise effectively. The proposed technique is effective in suppressing residual noise well. From computer experiments, we confirm the effectiveness of the proposed method. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | speech enhancement / MAP estimation / probability density function / non-speech segment |
| Paper # | SIP2008-101,SIS2008-36 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2008/9/18(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Registration To | Smart Info-Media Systems (SIS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A speech enhancement method using spectral probability density function of non-speech segments |
| Sub Title (in English) | |
| Keyword(1) | speech enhancement |
| Keyword(2) | MAP estimation |
| Keyword(3) | probability density function |
| Keyword(4) | non-speech segment |
| 1st Author's Name | Arata KAWAMURA |
| 1st Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Thanhikam WEERAWUT |
| 2nd Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Youji IIGUNI |
| 3rd Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University |
| Date | 2008-09-26 |
| Paper # | SIP2008-101,SIS2008-36 |
| Volume (vol) | vol.108 |
| Number (no) | 214 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |