Method and system for speech frame error concealment in speech decoding
US6968309B1 · kind B1 · utility
41Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2000 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | May 20, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/93
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for concealing errors in one or more bad frames in a speech sequence as part of an encoded bit stream received in a decoder. When the speech sequence is voiced, the LTP-parameters in the bad frames are replaced by the corresponding parameters in the last frame. When the speech sequence is unvoiced, the LTP-parameters in the bad frames are replaced by values calculated based on the LTP history along with an adaptively-limited random term.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.