pfft

来自「speech signal process tools」· 代码 · 共 10 行

# "%W% %G% ERL" 
# default parameter file for fft in do_xfft
int start = 1: "First point to process";
int nan = 0: "Number of points; 0 means continue to EOF";
int frame_len ?= 256: "Number of points per analysis frame; 0 means nan";
int step ?= 64: "step (points between start of successive frames; 0 means frame_len)";
string window_type ?= "HANNING": "Window to apply to data": {"RECT", "HAMMING", "TRIANG", "HANNING", "COS4"};
int order ?= 8: "Fourier transform length is 2 to this power" : [2,20];