int main (void)
{
aubio_filter_t * f;
uint_t rates[] = { 8000, 16000, 22050, 44100, 96000, 192000};
uint_t nrates = 6;
uint_t samplerate, i = 0;
for ( samplerate = rates[i]; i < nrates ; i++ ) {
f = new_aubio_filter_a_weighting (samplerate);
del_aubio_filter (f);
f = new_aubio_filter (7);
aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
}
// samplerate unknown
f = new_aubio_filter_a_weighting (4200);
del_aubio_filter (f);
// order to small
f = new_aubio_filter (2);
aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
// order to big
f = new_aubio_filter (12);
aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
return 0;
}
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);
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);
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;
}
static PyObject *
Py_filter_set_a_weighting (Py_filter * self, PyObject *args)
{
uint_t err = 0;
uint_t samplerate;
if (!PyArg_ParseTuple (args, "I", &samplerate)) {
return NULL;
}
err = aubio_filter_set_a_weighting (self->o, samplerate);
if (err > 0) {
PyErr_SetString (PyExc_ValueError,
"error when setting filter to A-weighting");
return NULL;
}
Py_RETURN_NONE;
}
