Digital encapsulation of audio signals
US11710493B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Dec 14, 2020 |
| Grant date | Jul 25, 2023 |
| Priority date | — |
| Expiry date | Jul 2, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L21/038
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Encoding and decoding systems are described for the provision of high quality digital representations of audio signals with particular attention to the correct perceptual rendering of fast transients at modest sample rates. This is achieved by optimising downsampling and upsampling filters to minimise the length of the impulse response while adequately attenuating alias products that have been found perceptually harmful.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.