| Presentation | 1998/4/24 A Time-Varying Complex Analysis For Analytic Speech Signal Keiichi Funaki, Yoshikazu Miyanaga, Koji Tochinai, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | LPC analysis methods are commonly used in speech processing. However, LPC methods can not extract non-stationary characteristics from speech signal although speech signal provides time-varying features. On the other hand, complex LPC methods for an analytic speech signal have already been proposed. These methods have some advantages to conventional ones: low computation and higher spectral estimation and so on. This paper presents a new time-varying complex speech analysis method for an analytic signal, in which AR coefficients are represented by complex basis fucntion expansion. The complex AR coefficients are determined so as to minimize least square error criterion. The equation based on the least square error can be efficiently solved by complex LDU decomposition. The estimated spectra with synthetic signal and natural speech signal are shown and the difference among basis functions are compared. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Speech analysis / Analytic signal / Complex signal processing / Time-varying analysis / AR model |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 1998/4/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| 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) | A Time-Varying Complex Analysis For Analytic Speech Signal |
| Sub Title (in English) | |
| Keyword(1) | Speech analysis |
| Keyword(2) | Analytic signal |
| Keyword(3) | Complex signal processing |
| Keyword(4) | Time-varying analysis |
| Keyword(5) | AR model |
| 1st Author's Name | Keiichi Funaki |
| 1st Author's Affiliation | Graduate School of Engineering, Hokkaido University() |
| 2nd Author's Name | Yoshikazu Miyanaga |
| 2nd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| 3rd Author's Name | Koji Tochinai |
| 3rd Author's Affiliation | Graduate School of Engineering, Hokkaido University |
| Date | 1998/4/24 |
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| Volume (vol) | vol.98 |
| Number (no) | 33 |
| Page | pp.pp.- |
| #Pages | 8 |
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