Method and apparatus for speech analysis and synthesis
US8280739B2 · kind B2 · utility
2Cited by
2References
8Claims
0Family size
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Key dates
| Filing date | Apr 3, 2008 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | May 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/48
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a speech analysis method comprising steps of obtaining a speech signal and a corresponding DEGG/EGG signal; regarding the speech signal as the output of a vocal tract filter in a source-filter model taking the DEGG/EGG signal as the input; and estimating the features of the vocal tract filter from the speech signal as the output and the DEGG/EGG signal as the input, wherein the features of the vocal tract filter are expressed by the state vectors of the vocal tract filter at selected time points, and the step of estimating is performed using Kalman filtering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.