Adaptive speech rate conversion without extension of input data duration, using speech interval detection
US6374213B1 · kind B1 · utility
7Cited by
4References
4Claims
0Family size
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Key dates
| Filing date | Feb 12, 2001 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Feb 12, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2025/786
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Frame power of an input signal is calculated to discriminate speech frame intervals from non-speech intervals, by thresholding current frame power using an adaptive speech-detection threshold based on the past maximum frame power value and the difference between past maximum and the minimum frame power values, adaptively updated using a predetermined number of frames prior to the current one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.