Speech synthesis system with variable interpolation capability
US4419540A · kind A · utility
8Cited by
2References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 5, 1981 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Oct 5, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0012
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A speech synthesis system with a linear predictive filter. The linear predictive filter utilizes coded reflection coefficients to produce digital signals representative of human speech. A variable interpolation circuit within the linear predictive filter allows a variable number of interpolation steps to be calculated between successive values of reflection coefficients. Additionally, a user programmable option allows the user to select a linear, nonlinear, or a combination form of interpolation based on stored scale data. The synthesizer output circuit also functions as a digital-to-analog converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.