High band excitation signal generation
US9697843B2 · kind B2 · utility
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12References
30Claims
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Key dates
| Filing date | Apr 30, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | Jan 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A particular method includes determining, at a device, a voicing classification of an input signal. The input signal corresponds to an audio signal. The method also includes controlling an amount of an envelope of a representation of the input signal based on the voicing classification. The method further includes modulating a white noise signal based on the controlled amount of the envelope. The method also includes generating a high band excitation signal based on the modulated white noise signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.