Post-quantization gain correction in audio coding
US10121481B2 · kind B2 · utility
2Cited by
11References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 4, 2011 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Oct 16, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/0232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A gain adjustment apparatus (60) for use in decoding of audio that has been encoded with separate gain and shape representations includes an accuracy meter (62) configured to estimate an accuracy measure (A(b)) of the shape representation (Ñ(b)), and to determine a gain correction (gc(b)) based on the estimated accuracy measure (A(b)). It also includes an envelope adjuster (64) configured to adjust the gain representation (Ê(b)) based on the determined gain correction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.