| Presentation | 2002/12/12 Noise Robust Speech Recognition Using GMM Based Speech Estimation Method Masakiyo FUJIMOTO, Yasuo ARIKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, a noise robust speech recognition method is proposed, by combining temporal domain singular value decomposition(SVD) based speech enhancement and Gaussian mixture model(GMM) based speech estimation. The critical neck of the GMM based approach is the noise estimation problem. For this noise estimation problem, we investigated the adaptive noise estimation in the GMM based approach. Furthermore, in order to obtain higher recognition accuracy, we employed a temporal domain SVD based speech enhancement method as the pre-processing module of the GMM based approach. In addition, to reduce more influence of the noise included in the noisy speech, we introduce an adaptive over subtraction factor into the temporal domain SVD based speech enhancement. In evaluation on the AURORA2 tasks, our method showed the significant improvement in the recognition accuracy at all the noise conditions. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | noise robust speech recognition / GMM based speech estimation / temporal domain SVD / AURORA2 database |
| Paper # | NLC2002-48 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2002/12/12(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 | Natural Language Understanding and Models of Communication (NLC) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Noise Robust Speech Recognition Using GMM Based Speech Estimation Method |
| Sub Title (in English) | |
| Keyword(1) | noise robust speech recognition |
| Keyword(2) | GMM based speech estimation |
| Keyword(3) | temporal domain SVD |
| Keyword(4) | AURORA2 database |
| 1st Author's Name | Masakiyo FUJIMOTO |
| 1st Author's Affiliation | Faculty of Science and Technology, Ryukoku University() |
| 2nd Author's Name | Yasuo ARIKI |
| 2nd Author's Affiliation | Faculty of Science and Technology, Ryukoku University |
| Date | 2002/12/12 |
| Paper # | NLC2002-48 |
| Volume (vol) | vol.102 |
| Number (no) | 527 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |