SynthesisFilter_AMRWBE

Reconstructs the speech signal from LP coefficients and residuals.

Syntax

IppStatus ippsSynthesisFilter_AMRWBE_16s32s_I (Ipp16s* pSrcLpc, int order, const Ipp16s* pSrcExc, Ipp32s* pSrcDstSignal, int len);

Parameters

pSrcLpc

Pointer to the LP coefficients vector a0, a1,..., aorder

order

Order of LP filter.

pSrcExc

Pointer to the excitation vector.

pSrcDstSignal

Pointer to the synthesized and updated speech.

len

Length of the filter.

Description

The function ippsSynthesisFilter_AMRWBE is declared in ippsc.h file. This function is identical to ippsSynthesisFilter_AMRWB but performs more accurate calculations and allows wider range of input data that is required for the extended codec.

Return Values

ippStsNoErr

Indicates no error.

ippStsNullPtrErr

Indicates an error when one of the specified pointers is NULL.

IppStsSizeErr

Indicates an error when len or order is less than or equal to zero.

Submit feedback on this help topic

Copyright © 2000 - 2010, Intel Corporation. All rights reserved.