Digital encapsulation of audio signals
US10867614B2 · kind B2 · utility
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6References
11Claims
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Key dates
| Filing date | Oct 2, 2018 |
| Grant date | Dec 15, 2020 |
| Priority date | — |
| Expiry date | Oct 2, 2038 |
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.