ref: bc4e1758ccf961afbaae7c9664a222958c8ff3d7
dir: /tests/src/test-filterbank_mel.c/
#include <aubio.h> int main (void) { /* allocate some memory */ uint_t win_s = 512; /* fft size */ uint_t channels = 2; /* number of channel */ uint_t n_filters = 40; /* number of filters */ cvec_t *in = new_cvec (win_s, channels); /* input buffer */ fvec_t *out = new_fvec (win_s, channels); /* input buffer */ fvec_t *coeffs = NULL; smpl_t samplerate = 16000.; /* allocate fft and other memory space */ aubio_filterbank_t *o = new_aubio_filterbank (n_filters, win_s); /* assign Mel-frequency coefficients */ aubio_filterbank_set_mel_coeffs_slaney (o, samplerate); coeffs = aubio_filterbank_get_coeffs (o); if (coeffs == NULL) { return -1; } //fvec_print (coeffs); fprintf(stderr, "%f\n", vec_sum(coeffs)); aubio_filterbank_do (o, in, out); del_aubio_filterbank (o); del_cvec (in); del_fvec (out); aubio_cleanup (); return 0; }