Pitch post-filter
US5544278A · kind A · utility
5Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 29, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Apr 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A filter utilizes future and past information for at least some of the subframes. Specifically, the filter receives a frame of synthesized speech and, for each subframe of the frame of synthesized speech, produces a signal which is a function of the subframe and of windows of earlier and later synthesized speech. Each window is utilized only when it provides an acceptable match to the subframe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.