| Presentation | 1998/1/23 Fundamental Frequency Extraction In Noisy Environments Hajime KOBAYASHI, Tetsuya SHIMAMURA, Jouji SUZUKI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Fundamental frequency of speech signals is a charactistic parameter needed in wide fields of speech processing. Many algorithms to detect the fundamental frequency have been proposed in the past. However, we do not have a promising method in any environment. In this paper we propose a new algorithm to detect the fundamental frequency of speech signals in noisy environments, which is an improved version of the Cepstrum method. Harmonics structure corrupted by noise have little period in high frequency domain, and spectral valleys are affected by noise. In the proposed method, these unnecessary parts in spectra are removed in effect the fundamental frequency. Simulation experiments suggeset that gross pitch error is lower in the proposed method than in the methods presented in the past. Particularly, the fundamental frequency of female voices and voices corrupted by periodic noise are accurately extracted in the proposed method than in the conventional methods. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fundamental frequency / Harmonics structure / Cripping / Band limitation / Cepstrum method |
| Paper # | SP97-95 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 1998/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fundamental Frequency Extraction In Noisy Environments |
| Sub Title (in English) | |
| Keyword(1) | Fundamental frequency |
| Keyword(2) | Harmonics structure |
| Keyword(3) | Cripping |
| Keyword(4) | Band limitation |
| Keyword(5) | Cepstrum method |
| 1st Author's Name | Hajime KOBAYASHI |
| 1st Author's Affiliation | Department of Information and Computer Sciences, Faculty of Engineering, Saitama University() |
| 2nd Author's Name | Tetsuya SHIMAMURA |
| 2nd Author's Affiliation | Department of Information and Computer Sciences, Faculty of Engineering, Saitama University |
| 3rd Author's Name | Jouji SUZUKI |
| 3rd Author's Affiliation | Department of Information and Computer Sciences, Faculty of Engineering, Saitama University |
| Date | 1998/1/23 |
| Paper # | SP97-95 |
| Volume (vol) | vol.97 |
| Number (no) | 505 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |