Presentation | 2003/6/19 Running Spectrum Filter for Robust Speech Recognition Noboru HAYASAKA, Naoya WADA, Yoshikazu MIYANAGA, Nobuo HATAOKA, |
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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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Committee | DSP |
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Conference Date | 2003/6/19(1days) |
Place (in Japanese) | (See Japanese page) |
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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 |
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