* a puredata wrapper for aubioquiet
*
* Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
- * http://iem.kug.ac.at/pd/externals-HOWTO/
+ * http://iem.kug.ac.at/pd/externals-HOWTO/
*
* */
void aubioquiet_tilde_setup (void);
-typedef struct _aubioquiet_tilde
+typedef struct _aubioquiet_tilde
{
- t_object x_obj;
- t_float threshold;
- t_int pos; /*frames%dspblocksize*/
- t_int bufsize;
- t_int hopsize;
- t_int wassilence;
- t_int issilence;
- fvec_t *vec;
- t_outlet *quietbang;
- t_outlet *noisybang;
+ t_object x_obj;
+ t_float silence;
+ t_int pos; /*frames%dspblocksize*/
+ t_int bufsize;
+ t_int hopsize;
+ t_int wassilence;
+ t_int issilence;
+ fvec_t *vec;
+ t_outlet *quietbang;
+ t_outlet *noisybang;
} t_aubioquiet_tilde;
-static t_int *aubioquiet_tilde_perform(t_int *w)
+static t_int *aubioquiet_tilde_perform(t_int *w)
{
- t_aubioquiet_tilde *x = (t_aubioquiet_tilde *)(w[1]);
- t_sample *in = (t_sample *)(w[2]);
- int n = (int)(w[3]);
- int j;
- for (j=0;j<n;j++) {
- /* write input to datanew */
- fvec_set_sample(x->vec, in[j], x->pos);
- /*time for fft*/
- if (x->pos == x->hopsize-1) {
- /* block loop */
- if (aubio_silence_detection(x->vec, x->threshold)==1) {
- if (x->wassilence==1) {
- x->issilence = 1;
- } else {
- x->issilence = 2;
- outlet_bang(x->quietbang);
- }
- x->wassilence=1;
- } else {
- if (x->wassilence<=0) {
- x->issilence = 0;
- } else {
- x->issilence = -1;
- outlet_bang(x->noisybang);
- }
- x->wassilence=0;
- }
- /* end of block loop */
- x->pos = -1; /* so it will be zero next j loop */
- }
- x->pos++;
- }
- return (w+4);
+ t_aubioquiet_tilde *x = (t_aubioquiet_tilde *)(w[1]);
+ t_sample *in = (t_sample *)(w[2]);
+ int n = (int)(w[3]);
+ int j;
+ for (j=0;j<n;j++) {
+ /* write input to datanew */
+ fvec_set_sample(x->vec, in[j], x->pos);
+ /*time for fft*/
+ if (x->pos == x->hopsize-1) {
+ /* block loop */
+ if (aubio_silence_detection(x->vec, x->silence)==1) {
+ if (x->wassilence==1) {
+ x->issilence = 1;
+ } else {
+ x->issilence = 2;
+ outlet_bang(x->quietbang);
+ }
+ x->wassilence=1;
+ } else {
+ if (x->wassilence<=0) {
+ x->issilence = 0;
+ } else {
+ x->issilence = -1;
+ outlet_bang(x->noisybang);
+ }
+ x->wassilence=0;
+ }
+ /* end of block loop */
+ x->pos = -1; /* so it will be zero next j loop */
+ }
+ x->pos++;
+ }
+ return (w+4);
}
static void aubioquiet_tilde_dsp(t_aubioquiet_tilde *x, t_signal **sp)
{
- dsp_add(aubioquiet_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
+ dsp_add(aubioquiet_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
}
static void aubioquiet_tilde_debug(t_aubioquiet_tilde *x)
{
- post(aubioquiet_version);
- post("aubioquiet~ bufsize:\t%d", x->bufsize);
- post("aubioquiet~ hopsize:\t%d", x->hopsize);
- post("aubioquiet~ threshold:\t%f", x->threshold);
- post("aubioquiet~ audio in:\t%f", x->vec->data[0]);
+ post(aubioquiet_version);
+ post("aubioquiet~ bufsize:\t%d", x->bufsize);
+ post("aubioquiet~ hopsize:\t%d", x->hopsize);
+ post("aubioquiet~ silence:\t%f", x->silence);
}
static void *aubioquiet_tilde_new (t_floatarg f)
{
- t_aubioquiet_tilde *x =
- (t_aubioquiet_tilde *)pd_new(aubioquiet_tilde_class);
+ t_aubioquiet_tilde *x = (t_aubioquiet_tilde *)pd_new(aubioquiet_tilde_class);
- x->threshold = (f < -1000.) ? -70 : (f >= 0.) ? -70. : f;
- x->bufsize = 1024;
- x->hopsize = x->bufsize / 2;
+ x->silence = (f < -1000.) ? -70 : (f >= 0.) ? -70. : f;
+ x->bufsize = 1024;
+ x->hopsize = x->bufsize / 2;
- x->vec = (fvec_t *)new_fvec(x->hopsize);
- x->wassilence = 1;
+ x->vec = (fvec_t *)new_fvec(x->hopsize);
+ x->wassilence = 1;
- floatinlet_new (&x->x_obj, &x->threshold);
- x->quietbang = outlet_new (&x->x_obj, &s_bang);
- x->noisybang = outlet_new (&x->x_obj, &s_bang);
- return (void *)x;
+ floatinlet_new (&x->x_obj, &x->silence);
+ x->quietbang = outlet_new (&x->x_obj, &s_bang);
+ x->noisybang = outlet_new (&x->x_obj, &s_bang);
+ return (void *)x;
}
void aubioquiet_tilde_setup (void)
{
- aubioquiet_tilde_class = class_new (gensym ("aubioquiet~"),
- (t_newmethod)aubioquiet_tilde_new,
- 0, sizeof (t_aubioquiet_tilde),
- CLASS_DEFAULT, A_DEFFLOAT, 0);
- class_addmethod(aubioquiet_tilde_class,
- (t_method)aubioquiet_tilde_dsp,
- gensym("dsp"), 0);
- class_addmethod(aubioquiet_tilde_class,
- (t_method)aubioquiet_tilde_debug,
- gensym("debug"), 0);
- CLASS_MAINSIGNALIN(aubioquiet_tilde_class,
- t_aubioquiet_tilde, threshold);
+ aubioquiet_tilde_class = class_new (gensym ("aubioquiet~"),
+ (t_newmethod)aubioquiet_tilde_new,
+ 0, sizeof (t_aubioquiet_tilde),
+ CLASS_DEFAULT, A_DEFFLOAT, 0);
+ class_addmethod(aubioquiet_tilde_class,
+ (t_method)aubioquiet_tilde_dsp,
+ gensym("dsp"), 0);
+ class_addmethod(aubioquiet_tilde_class,
+ (t_method)aubioquiet_tilde_debug,
+ gensym("debug"), 0);
+ CLASS_MAINSIGNALIN(aubioquiet_tilde_class,
+ t_aubioquiet_tilde, silence);
}