Method and apparatus for encoding/decoding audio signal using adaptive LPC coefficient interpolation
US8438017B2 · kind B2 · utility
5Cited by
2References
22Claims
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Key dates
| Filing date | Jan 29, 2009 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jul 14, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L19/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided are a method and apparatus for encoding or decoding an audio signal by adaptively interpolating a linear predictive coding (LPC) coefficient. In the method and apparatus of encoding or decoding an audio signal, LPC coefficient interpolation is selectively performed depending on whether a transient section is present in a current frame, thereby preventing noise from occurring when interpolating LPC coefficients in the transient section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.