| Presentation | 2006/6/8 Speech Enhancement by MAP Estimation Using a Variable Speech Distribution Yuta TSUKAMOTO, Arata KAWAMURA, Youji IIGUNI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A novel speech enhancement algorithm by MAP estimation is proposed in this paper. In the previous method, the performance of noise reduction in non-speech segment or the quality of the output speech in speech segment depends on the probability density function (PDF) of the speech spectral amplitude which is calculated and fixed beforehand. To realize both the high speech quality and noise reduction performance at the same time, we introduce a variable speech spectral distribution adjusted by the sum of power spectral densities. In a non-speech segment, the PDF of the speech spectral amplitude approaches to an exponential density to storongly reduce noise the noise. While in a speech segment, it approaches to a Rayleigh density to improve the quality of the enhanced speech. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech Enhancement / Noise Reduction / MAP estimation / Speech spectral distribution |
| Paper # | SIS2006-8 |
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| Conference Information | |
| Committee | SIS |
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| Conference Date | 2006/6/8(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| 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) | Speech Enhancement by MAP Estimation Using a Variable Speech Distribution |
| Sub Title (in English) | |
| Keyword(1) | Speech Enhancement |
| Keyword(2) | Noise Reduction |
| Keyword(3) | MAP estimation |
| Keyword(4) | Speech spectral distribution |
| 1st Author's Name | Yuta TSUKAMOTO |
| 1st Author's Affiliation | Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Arata KAWAMURA |
| 2nd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Youji IIGUNI |
| 3rd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| Date | 2006/6/8 |
| Paper # | SIS2006-8 |
| Volume (vol) | vol.106 |
| Number (no) | 95 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |