Post-quantization gain correction in audio coding
US11056125B2 · kind B2 · utility
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11References
16Claims
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Key dates
| Filing date | Sep 10, 2019 |
| Grant date | Jul 6, 2021 |
| Priority date | — |
| Expiry date | Dec 25, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A gain adjustment apparatus for use in decoding of audio that has been encoded with separate gain and shape representations includes an accuracy meter configured to estimate an accuracy measure of the shape representation, and to determine a gain correction based on the estimated accuracy measure. An envelope adjuster further included in the apparatus is configured to adjust the gain representation based on the determined gain correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.