| Presentation | 1997/11/28 A Method for Noisy Speech Recognition Using Weighting Spectral Parameters Kiyotaka NAGAO, Masanori AKITA, Naoshi ARIKAWA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report shows the method for improving the result of speech recognition under the noisy environment. Former reports show that the spectral subtraction and the recovery of valleys in spectral envelope obtained from polluted speech are effective for the improvement of the recognition results. However, these methods are not enough for the recognition under the poor environment. And the rules of adding the valleys for polluted spectral envelopes are complicated and sensitive. In this report, the averaged spevtral envelope obtained from 5 vowel spectrum are used for the emphasis of valleys. The vocalic spectral information at lower frequency range is emphasized and the spectrum obtained from consonants is not changed. In this experiment, the emphasis coefficients are varied on cepstral domain. This method is used for the recognition of noisy digits and improvement of recognition results are shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech recognition / Colored noise / Mel-cepstrum / Spectral subtraction / Quefrency |
| Paper # | EA97-70 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 1997/11/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Method for Noisy Speech Recognition Using Weighting Spectral Parameters |
| Sub Title (in English) | |
| Keyword(1) | Speech recognition |
| Keyword(2) | Colored noise |
| Keyword(3) | Mel-cepstrum |
| Keyword(4) | Spectral subtraction |
| Keyword(5) | Quefrency |
| 1st Author's Name | Kiyotaka NAGAO |
| 1st Author's Affiliation | Faculty of Engineering, Oita University() |
| 2nd Author's Name | Masanori AKITA |
| 2nd Author's Affiliation | Faculty of Engineering, Oita University |
| 3rd Author's Name | Naoshi ARIKAWA |
| 3rd Author's Affiliation | Faculty of Engineering, Oita University |
| Date | 1997/11/28 |
| Paper # | EA97-70 |
| Volume (vol) | vol.97 |
| Number (no) | 406 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |