Computes the LPC prediction residual.
IppStatus ippsLPCInverseFilter_G728_16s (const Ipp16s* pSrcSpeech, const Ipp16s* pCoeffs, Ipp16s* pDstResidual, IppsPostFilterAdapterState_G728* pMem);
pSrcSpeech |
Pointer to the quantized speech buffer [-240...0...4]. |
pCoeffs |
Pointer to the 10 th-order LPC filter coefficients [10]. |
pDstResidual |
Pointer to the LPC prediction residual vector [-140...0...99]. |
pMem |
Pointer to the postfilter adapter memory. |
The function ippsLPCInverseFilter_G728_16s is declared in ippsc.h file. This function computes the LPC prediction residual vector for the current decoded speech vector. The 10th-order LPC inverse filter implements the following function:
ippStsNoErr |
Indicates no error. |
ippStsNullPtrErr |
Indicates an error when at least one of the specified pointers is NULL. |
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