Method and apparatus for encoding a speech signal
US9076442B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Dec 10, 2010 |
| Grant date | Jul 7, 2015 |
| Priority date | — |
| Expiry date | Aug 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2019/0016
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to the present invention, a linear prediction filter coefficient of a current frame is acquired from an input signal using linear prediction, a quantized spectrum candidate vector of the current frame, corresponding to the linear prediction filter coefficient of the current frame, is acquired on the basis of first best information, and the quantized spectrum candidate vector of the current frame and the quantized spectrum vector of the previous frame are interpolated. Accordingly, in contrast to conventional phased optimization techniques, optimum parameters which minimize quantization errors, can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.