python3-czt - 0.0.7-2 main

generalization of the discrete Fourier transform
(DFT). While the DFT samples the Z plane at
uniformly-spaced points along the unit circle, the
chirp Z-transform samples along spiral arcs in the
Z-plane, corresponding to straight lines in the
S plane. The DFT, real DFT, and zoom DFT can be
calculated as special cases of the CZT.