aubio: temporal/test-filter.c

aubio 0.4.8

temporal/test-filter.c
#include <aubio.h>
int main (void)
{
uint_t win_s = 16; // window size
uint_t impulse_at = win_s / 2;
fvec_t *in = new_fvec (win_s); // input buffer
fvec_t *out = new_fvec (win_s); // input buffer
aubio_filter_t *o = new_aubio_filter_c_weighting (44100);
if (new_aubio_filter(0))
return 1;
if (aubio_filter_get_samplerate(o) != 44100)
return 1;
if (aubio_filter_set_c_weighting (o, -1) == 0)
return 1;
if (aubio_filter_set_c_weighting (0, 32000) == 0)
return 1;
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do (o, in);
fvec_print (in);
del_aubio_filter (o);
o = new_aubio_filter_a_weighting (32000);
if (aubio_filter_set_a_weighting (o, -1) == 0)
return 1;
if (aubio_filter_set_a_weighting (0, 32000) == 0)
return 1;
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do_outplace (o, in, out);
fvec_print (out);
aubio_filter_set_a_weighting (o, 32000);
in->data[impulse_at] = 0.5;
fvec_print (in);
aubio_filter_do_filtfilt (o, in, out);
fvec_print (out);
del_fvec (in);
del_fvec (out);
del_aubio_filter (o);
aubio_cleanup ();
return 0;
}