Method, system and apparatus for allocating bits in perceptual audio coders
US7725313B2 · kind B2 · utility
2Cited by
9References
10Claims
0Family size
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Key dates
| Filing date | Sep 13, 2004 |
| Grant date | May 25, 2010 |
| Priority date | — |
| Expiry date | May 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/002
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A non-iterative and computationally efficient bit allocation technique for perceptual audio coders employing uniform quantization schemes. This is achieved by computing a target MNR for all critical bands in a frame using a target bit rate and associated SMRs. Associated SNRs are then computed for the critical bands using the computed target MNR and the associated SMRs. Bits are then allocated to the critical bands based on the computed associated SNRs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.