Voice source for synthetic speech system
US5400434A · kind A · utility
255Cited by
8References
47Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 18, 1994 |
| Grant date | Mar 21, 1995 |
| Priority date | — |
| Expiry date | Apr 18, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L13/06
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The voice source for the synthetic speech system is human generated speech waveforms that are inverse filtered to produce glottal waveforms representing larynx sound. These glottal waveforms are modified in pitch and amplitude, as required, to produce the desired sound. The human quality of the synthetically generated voice is further brought out by adding vocal tract effects, as desired. The pitch control is effected in one of two alternate ways, a loop method, or a concatenation method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.