| Presentation | 1997/11/28 Speech Analysis for Independent Speaker using Signal Specific Analyzing Wavelet Yoshifumi CHISAKI, Takashi FUJIMOTO, Tsuyoshi USAGAWA, Masanao EBATA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This study deals with time-frequency analysis for speech using wavelet transform. General wavelet transform has better performance of resolution for time and frequency. However, detection of pitches is difficult in noisy environment. Though signal specific analyzing wavelet which has the characteristics of the target signal has proposed to pick up the characteristics of speech, the general wavelet transform which is applied to the signal specific analyzing wavelet outputs the ripples of power along the time axis in time-frequency domain. This phenomenon causes the error of pitch tracking. For reducing the error, the harmonic wavelet transform is proposed to apply the signal specific analyzing wavelet. As the results of comparing with Gabor wavelet transform, the proposed method improved a ratio of pitch detection from 16.4% to 62.4% at SNR=-5dB. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Harmonic wavelet transform / Signal specific analyzing wavelet / Pitch detection |
| Paper # | EA97-71 |
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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) | |
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| 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) | Speech Analysis for Independent Speaker using Signal Specific Analyzing Wavelet |
| Sub Title (in English) | |
| Keyword(1) | Harmonic wavelet transform |
| Keyword(2) | Signal specific analyzing wavelet |
| Keyword(3) | Pitch detection |
| 1st Author's Name | Yoshifumi CHISAKI |
| 1st Author's Affiliation | Kumamoto University() |
| 2nd Author's Name | Takashi FUJIMOTO |
| 2nd Author's Affiliation | Kumamoto University |
| 3rd Author's Name | Tsuyoshi USAGAWA |
| 3rd Author's Affiliation | Kumamoto University |
| 4th Author's Name | Masanao EBATA |
| 4th Author's Affiliation | Kumamoto University |
| Date | 1997/11/28 |
| Paper # | EA97-71 |
| Volume (vol) | vol.97 |
| Number (no) | 406 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |