| Presentation | 1996/11/21 A Method for Noisy Speech Recognition Using Adaptive Emphasis of the Spectral Information at Lower Frequency Masanori AKITA, Kiyotaka NAGAO, Takamitsu SHIBAYAMA, |
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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. In these examinations, importance of the spectral cue at lower frequency region is different between vocalic sounds and consonants. In this report, amount of the warp of the frequency scale is changed with the nature of the speech. The vocalic spectral information at lower frequency range is emphasized and the spectrum obtained from consonants is evaluated at linear frequency scale. 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 / Frequency warping |
| Paper # | EA96-61 |
| Date of Issue |
| Conference Information | |
| Committee | EA |
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| Conference Date | 1996/11/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| 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 Adaptive Emphasis of the Spectral Information at Lower Frequency |
| Sub Title (in English) | |
| Keyword(1) | Speech recognition |
| Keyword(2) | Colored noise |
| Keyword(3) | Mel-cepstrum |
| Keyword(4) | Spectral subtraction |
| Keyword(5) | Frequency warping |
| 1st Author's Name | Masanori AKITA |
| 1st Author's Affiliation | Faculty of Engineering, Oita University() |
| 2nd Author's Name | Kiyotaka NAGAO |
| 2nd Author's Affiliation | Faculty of Engineering, Oita University |
| 3rd Author's Name | Takamitsu SHIBAYAMA |
| 3rd Author's Affiliation | Faculty of Engineering, Oita University |
| Date | 1996/11/21 |
| Paper # | EA96-61 |
| Volume (vol) | vol.96 |
| Number (no) | 369 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |