Elimination of clipping associated with VAD-directed silence suppression
US6865162B1 · kind B1 · utility
30Cited by
35References
40Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 6, 2000 |
| Grant date | Mar 8, 2005 |
| Priority date | — |
| Expiry date | Oct 28, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/005
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for elimination of clipping associated with VAD-directed silence suppression includes receiving a voice signal in a buffer during the delay between the start of voice activity and the detection of the voice activity. Then, the voice signal is played from the buffer in condensed form, e.g., by dropping packets or slightly accelerating playback of the signal from the buffer. After voice activity is detected, the voice signal may continue to be buffered and condensed until the buffer is completely depleted. The voice signal may then be transmitted directly, without being buffered or condensed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.