Linear predictive speech analysis-synthesis apparatus
US5048088A · kind A · utility
14Cited by
5References
8Claims
0Family size
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Key dates
| Filing date | Mar 28, 1989 |
| Grant date | Sep 10, 1991 |
| Priority date | — |
| Expiry date | Mar 28, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A linear predictive speech synthesis apparatus which receives a pitch parameter and linear predictive coefficients. The synthesis apparatus includes a device for producing an exciting source signal in response to the pitch parameter, and a device for filtering the exciting source signal in response to the linear predictive coefficients to produce a synthesized speech signal. A cascade frequency characteristic between spectral envelope frequency characteristics of the producing device and the filtering device is designated such as to correspond to a spectral envelope characteristic of an input speech signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.