Adaptive postfiltering methods and systems for decoding speech
US8032363B2 · kind B2 · utility
7Cited by
15References
16Claims
0Family size
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Key dates
| Filing date | Aug 9, 2002 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Sep 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/26
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of processing a decoded speech (DS) signal including successive DS frames, each DS frame including DS samples. The method comprises: adaptively filtering the DS signal to produce a filtered signal; gain-scaling the filtered signal with an adaptive gain updated once a DS frame, thereby producing a gain-scaled signal; and performing a smoothing operation to smooth possible waveform discontinuities in the gain-scaled signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.