Method, medium, and apparatus encoding scalable wideband audio signal
US7974839B2 · kind B2 · utility
3Cited by
4References
20Claims
0Family size
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Key dates
| Filing date | Mar 21, 2008 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | May 5, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a method and apparatus for encoding a scalable wideband audio signal, the method including: filtering a voiced signal by performing linear prediction on the voiced signal and modulating the filtered signal; encoding the modulated signal in the time domain, and outputting a core layer encoding result of the voiced signal; subtracting a signal obtained by decoding the core layer encoding result from the modulated signal and outputting an error signal; and encoding the error signal and outputting an enhancement layer encoding result of the voiced signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.