Adaptations of analysis or synthesis weighting windows for transform coding or decoding
US9368121B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jul 9, 2012 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Dec 7, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/022
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and device are provided for coding or decoding a digital audio signal by transform using analysis or synthesis weighting windows applied to sample frames. The method includes an irregular sampling of an initial window provided for a transform of given initial size N, to apply a secondary transform of size M different from N.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.