uint_t
aubio_filterbank_set_triangle_bands (aubio_filterbank_t * fb,
- smpl_t samplerate, fvec_t * freqs)
+ fvec_t * freqs, smpl_t samplerate)
{
fvec_t *filters = aubio_filterbank_get_coeffs (fb);
}
/* now compute the actual coefficients */
- retval = aubio_filterbank_set_triangle_bands (fb, samplerate, freqs);
+ retval = aubio_filterbank_set_triangle_bands (fb, freqs, samplerate);
/* destroy vector used to store frequency limits */
del_fvec (freqs);
*/
uint_t aubio_filterbank_set_triangle_bands (aubio_filterbank_t * fb,
- smpl_t samplerate, fvec_t * freqs);
+ fvec_t * freqs, smpl_t samplerate);
/** filterbank initialization for Mel filters using Slaney's coefficients
/*
-
Copyright (C) 2003-2009 Paul Brossier <piem@aubio.org>
This file is part of aubio.
#include "temporal/filter.h"
#include "temporal/a_weighting.h"
-uint_t aubio_filter_set_a_weighting (aubio_filter_t * f) {
-
- uint_t samplerate = aubio_filter_get_samplerate (f);
+uint_t
+aubio_filter_set_a_weighting (aubio_filter_t * f, uint_t samplerate)
+{
+ aubio_filter_set_samplerate (f, samplerate);
lvec_t *bs = aubio_filter_get_feedforward (f);
lvec_t *as = aubio_filter_get_feedback (f);
lsmp_t *b = bs->data[0], *a = as->data[0];
uint_t order = aubio_filter_get_order (f);
- if ( order != 7 ) {
- AUBIO_ERROR ( "order of A-weighting filter must be 7, not %d\n", order );
+ if (order != 7) {
+ AUBIO_ERROR ("order of A-weighting filter must be 7, not %d\n", order);
return 1;
}
/* select coefficients according to sampling frequency */
- switch ( samplerate ) {
+ switch (samplerate) {
- // adsgn 8000
case 8000:
b[0] = 6.306209468238731519207362907764036208391189575195312500e-01;
b[1] = -1.261241893647746525886077506584115326404571533203125000e+00;
a[6] = 2.098548546080332977137317129745497368276119232177734375e-01;
break;
- // adsgn 11025
case 11025:
b[0] = 6.014684165832374640459079273568931967020034790039062500e-01;
b[1] = -1.202936833166475150136420779745094478130340576171875000e+00;
a[6] = 1.833526393172056623281918064094497822225093841552734375e-01;
break;
- // adsgn 16000
case 16000:
b[0] = 5.314898298235570806014038680586963891983032226562500000e-01;
b[1] = -1.062979659647114161202807736117392778396606445312500000e+00;
a[6] = 1.188781038285612462468421313133148942142724990844726562e-01;
break;
- // adsgn 22050
case 22050:
b[0] = 4.492998504299193784916610638902056962251663208007812500e-01;
b[1] = -8.985997008598388680056245902960654348134994506835937500e-01;
a[6] = 5.631716697383508385410522123493137769401073455810546875e-02;
break;
- // adsgn 24000
case 24000:
b[0] = 4.256263892891054001488271296693710610270500183105468750e-01;
b[1] = -8.512527785782106892753517968230880796909332275390625000e-01;
a[6] = 4.178771337829546850262119050967157818377017974853515625e-02;
break;
- // adsgn 32000
case 32000:
b[0] = 3.434583386824304196416335344110848382115364074707031250e-01;
b[1] = -6.869166773648609503055695313378237187862396240234375000e-01;
a[6] = 6.764072168342137418572956875095769646577537059783935547e-03;
break;
- // adsgn 44100
case 44100:
b[0] = 2.557411252042575133813784304948057979345321655273437500e-01;
b[1] = -5.114822504085150267627568609896115958690643310546875000e-01;
a[6] = 4.351177233495117681327801761881346465088427066802978516e-03;
break;
- // adsgn 48000
case 48000:
b[0] = 2.343017922995132285013397677175817079842090606689453125e-01;
b[1] = -4.686035845990265125138307666929904371500015258789062500e-01;
a[6] = 1.122425003323123879339640041052916785702109336853027344e-02;
break;
- // adsgn 88200
case 88200:
b[0] = 1.118876366882113199130444058937428053468465805053710938e-01;
b[1] = -2.237752733764226120705131961585721001029014587402343750e-01;
a[6] = 1.460012549591642450064199465487035922706127166748046875e-01;
break;
- // adsgn 96000
case 96000:
b[0] = 9.951898975972744976203898659150581806898117065429687500e-02;
b[1] = -1.990379795194548995240779731830116361379623413085937500e-01;
a[6] = 1.740971994228911745583587844521389342844486236572265625e-01;
break;
- // adsgn 192000
case 192000:
b[0] = 3.433213424548713782469278044118254911154508590698242188e-02;
b[1] = -6.866426849097426177159775306790834292769432067871093750e-02;
a[6] = 4.325834301870381537469256727490574121475219726562500000e-01;
break;
- default:
- AUBIO_ERROR ( "sampling rate of A-weighting filter is %d, should be one of\
- 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, 88200, 96000, 192000.\n",
- samplerate );
+ default:
+ AUBIO_ERROR ("sampling rate of A-weighting filter is %d, should be one of\
+ 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, 88200, 96000, 192000.\n", samplerate);
return 1;
}
return 0;
}
-aubio_filter_t * new_aubio_filter_a_weighting (uint_t samplerate, uint_t channels) {
- aubio_filter_t * f = new_aubio_filter (samplerate, 7, channels);
- aubio_filter_set_a_weighting (f);
+aubio_filter_t *
+new_aubio_filter_a_weighting (uint_t channels, uint_t samplerate)
+{
+ aubio_filter_t *f = new_aubio_filter (7, channels);
+ aubio_filter_set_a_weighting (f, samplerate);
return f;
}
-
\return a new filter object
*/
-aubio_filter_t * new_aubio_filter_a_weighting (uint_t samplerate, uint_t channels);
+aubio_filter_t *new_aubio_filter_a_weighting (uint_t channels,
+ uint_t samplerate);
/** set feedback and feedforward coefficients of a A-weighting filter
\param f filter object to get coefficients from
*/
-uint_t aubio_filter_set_a_weighting (aubio_filter_t *f);
+uint_t aubio_filter_set_a_weighting (aubio_filter_t *f, uint_t samplerate);
#ifdef __cplusplus
}
#include "temporal/filter.h"
#include "temporal/c_weighting.h"
-uint_t aubio_filter_set_c_weighting (aubio_filter_t * f) {
-
- uint_t samplerate = aubio_filter_get_samplerate (f);
- lvec_t * bs = aubio_filter_get_feedforward (f);
- lvec_t * as = aubio_filter_get_feedback (f);
+uint_t
+aubio_filter_set_c_weighting (aubio_filter_t * f, uint_t samplerate)
+{
+ aubio_filter_set_samplerate (f, samplerate);
+ lvec_t *bs = aubio_filter_get_feedforward (f);
+ lvec_t *as = aubio_filter_get_feedback (f);
lsmp_t *b = bs->data[0], *a = as->data[0];
uint_t order = aubio_filter_get_order (f);
if ( order != 5 ) {
- AUBIO_ERROR ( "order of C-weighting filter must be 5, not %d\n", order );
+ AUBIO_ERROR ("order of C-weighting filter must be 5, not %d\n", order);
return 1;
}
/* select coefficients according to sampling frequency */
- switch ( samplerate ) {
+ switch (samplerate) {
- // cdsgn 8000
case 8000:
b[0] = 6.782173932405135552414776611840352416038513183593750000e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 4.147270002091348328754349950031610205769538879394531250e-01;
break;
- // cdsgn 11025
case 11025:
b[0] = 6.002357155402652244546857218665536493062973022460937500e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 2.987653956523212417373258631414500996470451354980468750e-01;
break;
- // cdsgn 16000
case 16000:
b[0] = 4.971057193673903418229542694461997598409652709960937500e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 1.660337524309875301131711466950946487486362457275390625e-01;
break;
- // cdsgn 22050
case 22050:
b[0] = 4.033381299002754549754001800465630367398262023925781250e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 7.171589940116777917022972133054281584918498992919921875e-02;
break;
- // cdsgn 24000
case 24000:
b[0] = 3.786678621924967069745093795063439756631851196289062500e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 5.217291949300089520802359288609295617789030075073242188e-02;
break;
- // cdsgn 32000
case 32000:
b[0] = 2.977986488230693340462096330156782642006874084472656250e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 7.987649713547682189807019881300220731645822525024414062e-03;
break;
- // cdsgn 44100
case 44100:
b[0] = 2.170085619492190254220531642204150557518005371093750000e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 4.908700174624683852664386307651511742733418941497802734e-03;
break;
- // cdsgn 48000
case 48000:
b[0] = 1.978871200263932761398422144338837824761867523193359375e-01;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 1.253882314727246607977129144728678511455655097961425781e-02;
break;
- // cdsgn 88200
case 88200:
b[0] = 9.221909851156021020734954163344809785485267639160156250e-02;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 1.550674356752141103132913713125162757933139801025390625e-01;
break;
- // cdsgn 96000
case 96000:
b[0] = 8.182864044979756834585771230194950476288795471191406250e-02;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
a[4] = 1.840048283551226071530493300087982788681983947753906250e-01;
break;
- // cdsgn 192000
case 192000:
b[0] = 2.784755468532278815940728122768632601946592330932617188e-02;
b[1] = 0.000000000000000000000000000000000000000000000000000000e+00;
return 0;
}
-aubio_filter_t * new_aubio_filter_c_weighting (uint_t samplerate, uint_t channels) {
- aubio_filter_t * f = new_aubio_filter(samplerate, 5, channels);
- aubio_filter_set_c_weighting (f);
+aubio_filter_t * new_aubio_filter_c_weighting (uint_t channels, uint_t samplerate) {
+ aubio_filter_t * f = new_aubio_filter(5, channels);
+ aubio_filter_set_c_weighting (f, samplerate);
return f;
}
\return a new filter object
*/
-aubio_filter_t * new_aubio_filter_c_weighting (uint_t samplerate, uint_t channels);
+aubio_filter_t * new_aubio_filter_c_weighting (uint_t channels, uint_t samplerate);
/** set feedback and feedforward coefficients of a C-weighting filter
\param f filter object to get coefficients from
*/
-uint_t aubio_filter_set_c_weighting (aubio_filter_t *f);
+uint_t aubio_filter_set_c_weighting (aubio_filter_t *f, uint_t samplerate);
#ifdef __cplusplus
}
return f->samplerate;
}
+uint_t
+aubio_filter_set_samplerate (aubio_filter_t * f, uint_t samplerate)
+{
+ f->samplerate = samplerate;
+ return AUBIO_OK;
+}
+
aubio_filter_t *
-new_aubio_filter (uint_t samplerate, uint_t order, uint_t channels)
+new_aubio_filter (uint_t order, uint_t channels)
{
aubio_filter_t *f = AUBIO_NEW (aubio_filter_t);
f->x = new_lvec (order, channels);
f->y = new_lvec (order, channels);
f->a = new_lvec (order, 1);
f->b = new_lvec (order, 1);
- f->samplerate = samplerate;
+ /* by default, samplerate is not set */
+ f->samplerate = 0;
f->order = order;
/* set default to identity */
f->a->data[0][1] = 1.;
*/
uint_t aubio_filter_get_samplerate (aubio_filter_t * f);
+/** get sampling rate of the filter
+
+ \param f filter to get sampling rate from
+ \param samplerate sample rate to set the filter to
+
+ \return the sampling rate of the filter, in Hz
+
+*/
+uint_t aubio_filter_set_samplerate (aubio_filter_t * f, uint_t samplerate);
+
/** create new filter object
This function creates a new ::aubio_filter_t object, given an order
\return the newly created filter object
*/
-aubio_filter_t *new_aubio_filter (uint_t samplerate, uint_t order,
- uint_t channels);
+aubio_filter_t *new_aubio_filter (uint_t order, uint_t channels);
/** delete a filter object
void aubio_fft_get_real(cvec_t * spectrum, fvec_t * compspec);
/* filter */
-aubio_filter_t * new_aubio_filter(uint_t samplerate, uint_t order, uint_t channels);
+aubio_filter_t * new_aubio_filter(uint_t order, uint_t channels);
void aubio_filter_do(aubio_filter_t * b, fvec_t * in);
void aubio_filter_do_outplace(aubio_filter_t * b, fvec_t * in, fvec_t * out);
void aubio_filter_do_filtfilt(aubio_filter_t * b, fvec_t * in, fvec_t * tmp);
void del_aubio_filter(aubio_filter_t * b);
-aubio_filter_t * new_aubio_filter_a_weighting (uint_t samplerate, uint_t channels);
-uint_t aubio_filter_set_a_weighting (aubio_filter_t * b);
+aubio_filter_t * new_aubio_filter_a_weighting (uint_t channels, uint_t samplerate);
+uint_t aubio_filter_set_a_weighting (aubio_filter_t * b, uint_t samplerate);
-aubio_filter_t * new_aubio_filter_c_weighting (uint_t samplerate, uint_t channels);
-uint_t aubio_filter_set_c_weighting (aubio_filter_t * b);
+aubio_filter_t * new_aubio_filter_c_weighting (uint_t channels, uint_t samplerate);
+uint_t aubio_filter_set_c_weighting (aubio_filter_t * b, uint_t samplerate);
/* biquad */
aubio_biquad_t * new_aubio_biquad(lsmp_t b1, lsmp_t b2, lsmp_t b3, lsmp_t a2, lsmp_t a3);
/* filterbank */
aubio_filterbank_t * new_aubio_filterbank(uint_t win_s, uint_t channels);
-void aubio_filterbank_set_triangle_bands (aubio_filterbank_t *fb, uint_t samplerate, fvec_t *freqs);
+void aubio_filterbank_set_triangle_bands (aubio_filterbank_t *fb, fvec_t *freqs, uint_t samplerate);
void aubio_filterbank_set_mel_coeffs_slaney(aubio_filterbank_t *fb, uint_t samplerate);
void del_aubio_filterbank(aubio_filterbank_t * fb);
void aubio_filterbank_do(aubio_filterbank_t * fb, cvec_t * in, fvec_t *out);
uint_t channels = 2;
for ( samplerate = rates[i]; i < nrates ; i++ ) {
- f = new_aubio_filter_a_weighting (samplerate, channels);
+ f = new_aubio_filter_a_weighting (channels, samplerate);
del_aubio_filter (f);
- f = new_aubio_filter (samplerate, 7, channels*2);
- aubio_filter_set_a_weighting (f);
+ f = new_aubio_filter (7, channels*2);
+ aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
}
// samplerate unknown
- f = new_aubio_filter_a_weighting (12089, channels);
+ f = new_aubio_filter_a_weighting (channels, 4200);
del_aubio_filter (f);
// order to small
- f = new_aubio_filter (samplerate, 2, channels*2);
- aubio_filter_set_a_weighting (f);
+ f = new_aubio_filter (2, channels*2);
+ aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
// order to big
- f = new_aubio_filter (samplerate, 12, channels*2);
- aubio_filter_set_a_weighting (f);
+ f = new_aubio_filter (12, channels*2);
+ aubio_filter_set_a_weighting (f, samplerate);
del_aubio_filter (f);
return 0;
uint_t channels = 2;
for ( samplerate = rates[i]; i < nrates ; i++ ) {
- f = new_aubio_filter_c_weighting (samplerate, channels);
+ f = new_aubio_filter_c_weighting (channels, samplerate);
del_aubio_filter (f);
- f = new_aubio_filter (samplerate, 5, channels*2);
- aubio_filter_set_c_weighting (f);
+ f = new_aubio_filter (5, channels*2);
+ aubio_filter_set_c_weighting (f, samplerate);
del_aubio_filter (f);
}
// samplerate unknown
- f = new_aubio_filter_c_weighting (12089, channels);
+ f = new_aubio_filter_c_weighting (channels, 4200);
del_aubio_filter (f);
// order to small
- f = new_aubio_filter (samplerate, 2, channels*2);
- aubio_filter_set_c_weighting (f);
+ f = new_aubio_filter (2, channels*2);
+ aubio_filter_set_c_weighting (f, samplerate);
del_aubio_filter (f);
// order to big
- f = new_aubio_filter (samplerate, 12, channels*2);
- aubio_filter_set_c_weighting (f);
+ f = new_aubio_filter (12, channels*2);
+ aubio_filter_set_c_weighting (f, samplerate);
del_aubio_filter (f);
return 0;
fvec_t *out = new_fvec (win_s, channels); /* input buffer */
- aubio_filter_t *o = new_aubio_filter_c_weighting (44100, channels);
+ aubio_filter_t *o = new_aubio_filter_c_weighting (channels, 44100);
in->data[0][12] = 0.5;
fvec_print (in);
aubio_filter_do (o, in);
fvec_print (in);
del_aubio_filter (o);
- o = new_aubio_filter_c_weighting (44100, channels);
+ o = new_aubio_filter_c_weighting (channels, 44100);
in->data[0][12] = 0.5;
fvec_print (in);
aubio_filter_do_outplace (o, in, out);
fvec_print (out);
del_aubio_filter (o);
- o = new_aubio_filter_c_weighting (44100, channels);
+ o = new_aubio_filter_c_weighting (channels, 44100);
in->data[0][12] = 0.5;
fvec_print (in);
aubio_filter_do_filtfilt (o, in, out);
projects / aubio.git / commitdiff