Computes the inverse discrete Fourier transform of a complex signal.
This section describes the functions that compute the discrete cosine transform (DCT) of a signal. DCT functions used in the Intel IPP signal processing data-domain implement the modified computation algorithm proposed in [Rao90].
DEPRECATED. Computes the size of the DCT-IV specification structure.
DEPRECATED. Initializes user-supplied memory as IppsPolyGF_8u context for future use.
DEPRECATED. Computes roots of a given polynomial.
Computes the speech signal by filtering the input speech through the synthesis filter 1/A(z).
Applies 60Hz bandwidth expansion.
Reconstructs the speech signal from LP coefficients and residuals.