| Presentation | 2003/6/19 Running Spectrum Filter for Robust Speech Recognition Noboru HAYASAKA, Naoya WADA, Yoshikazu MIYANAGA, Nobuo HATAOKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | When a speech recognition system is used in real environment, noises cause a serious problem in the system. In this report, we propose the method for decreasing the noise influences with a running spectrum filter. The running spectrum is represented as the time trajectories of spectra. It is a very important characteristic in speech recognition. The proposal method makes the low-pass filter apply on the time trajectories of the power spectrum and the band-pass filter apply on the time trajectories of the log power spectrum. As a result of the isolated word recognition experiment where four kinds of noises were added artificially, higher recognition rates was obtained especially in lower SNR environment compared with RASTA and CMS. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | isolated word recognition / running spectrum / noise robust |
| Paper # | CAS2003-6,VLD2003-16,DSP2003-36 |
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| Conference Information | |
| Committee | DSP |
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| Conference Date | 2003/6/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Digital Signal Processing (DSP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Running Spectrum Filter for Robust Speech Recognition |
| Sub Title (in English) | |
| Keyword(1) | isolated word recognition |
| Keyword(2) | running spectrum |
| Keyword(3) | noise robust |
| 1st Author's Name | Noboru HAYASAKA |
| 1st Author's Affiliation | Graduate School of Engineering, Hokkaido University() |
| 2nd Author's Name | Naoya WADA |
| 2nd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| 3rd Author's Name | Yoshikazu MIYANAGA |
| 3rd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| 4th Author's Name | Nobuo HATAOKA |
| 4th Author's Affiliation | Central Research Laboratory, Hitachi, Ltd. |
| Date | 2003/6/19 |
| Paper # | CAS2003-6,VLD2003-16,DSP2003-36 |
| Volume (vol) | vol.103 |
| Number (no) | 146 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |