| Presentation | 2006/12/14 A noise robust voice activity detection with state transition processes of speech and noise Masakiyo FUJIMOTO, Kentaro ISHIZUKA, Hiroko KATO, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a noise robust voice activity detection with state transition processes of speech and noise. The proposed method constructs a clean speech/silence state transition model beforehand, and sequentially adapts the model to noise environment by using a parallel non-linear Kalman filtering when the observed signal is given. Speech/non-speech discrimination is carried out by calculating the likelihood ratio of a speech (clean speech+noise) state to a non-speech (silence+noise) state with the adapted model. In addition, a backward techniques, i.e., a parallel Kalman smoother and a backward probability estimation, are used to estimate the noise and for the likelihood ratio calculation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | voice activity detection / non-stationary noise / state transition process / parallel non-linear Kalman filter/smoother / forward-backward estimation |
| Paper # | NLC2006-31,SP2006-87 |
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| Conference Information | |
| Committee | NLC |
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| Conference Date | 2006/12/14(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) | A noise robust voice activity detection with state transition processes of speech and noise |
| Sub Title (in English) | |
| Keyword(1) | voice activity detection |
| Keyword(2) | non-stationary noise |
| Keyword(3) | state transition process |
| Keyword(4) | parallel non-linear Kalman filter/smoother |
| Keyword(5) | forward-backward estimation |
| 1st Author's Name | Masakiyo FUJIMOTO |
| 1st Author's Affiliation | NTT Communicaition Science Laboratories, NTT Corp.() |
| 2nd Author's Name | Kentaro ISHIZUKA |
| 2nd Author's Affiliation | NTT Communicaition Science Laboratories, NTT Corp. |
| 3rd Author's Name | Hiroko KATO |
| 3rd Author's Affiliation | NTT Communicaition Science Laboratories, NTT Corp. |
| Date | 2006/12/14 |
| Paper # | NLC2006-31,SP2006-87 |
| Volume (vol) | vol.106 |
| Number (no) | 441 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |