3 * a puredata wrapper for aubioquiet
5 * Thanks to Johannes M Zmolnig for writing the excellent HOWTO:
6 * http://iem.kug.ac.at/pd/externals-HOWTO/
11 #include <aubio/aubio.h>
13 char aubioquiet_version[] = "aubioquiet~ version 0.1";
15 static t_class *aubioquiet_tilde_class;
17 void aubioquiet_tilde_setup (void);
19 typedef struct _aubioquiet_tilde
23 t_int pos; /*frames%dspblocksize*/
33 static t_int *aubioquiet_tilde_perform(t_int *w)
35 t_aubioquiet_tilde *x = (t_aubioquiet_tilde *)(w[1]);
36 t_sample *in = (t_sample *)(w[2]);
40 /* write input to datanew */
41 fvec_write_sample(x->vec, in[j], 0, x->pos);
43 if (x->pos == x->hopsize-1) {
45 if (aubio_silence_detection(x->vec, x->threshold)==1) {
46 if (x->wassilence==1) {
50 outlet_bang(x->quietbang);
54 if (x->wassilence<=0) {
58 outlet_bang(x->noisybang);
62 /* end of block loop */
63 x->pos = -1; /* so it will be zero next j loop */
70 static void aubioquiet_tilde_dsp(t_aubioquiet_tilde *x, t_signal **sp)
72 dsp_add(aubioquiet_tilde_perform, 3, x, sp[0]->s_vec, sp[0]->s_n);
75 static void aubioquiet_tilde_debug(t_aubioquiet_tilde *x)
77 post("aubioquiet~ bufsize:\t%d", x->bufsize);
78 post("aubioquiet~ hopsize:\t%d", x->hopsize);
79 post("aubioquiet~ threshold:\t%f", x->threshold);
80 post("aubioquiet~ audio in:\t%f", x->vec->data[0][0]);
83 static void *aubioquiet_tilde_new (t_floatarg f)
85 t_aubioquiet_tilde *x =
86 (t_aubioquiet_tilde *)pd_new(aubioquiet_tilde_class);
88 x->threshold = (f < -1000.) ? -70 : (f >= 0.) ? -70. : f;
90 x->hopsize = x->bufsize / 2;
92 x->vec = (fvec_t *)new_fvec(x->hopsize,1);
95 floatinlet_new (&x->x_obj, &x->threshold);
96 x->quietbang = outlet_new (&x->x_obj, &s_bang);
97 x->noisybang = outlet_new (&x->x_obj, &s_bang);
98 post(aubioquiet_version);
102 void aubioquiet_tilde_setup (void)
104 aubioquiet_tilde_class = class_new (gensym ("aubioquiet~"),
105 (t_newmethod)aubioquiet_tilde_new,
106 0, sizeof (t_aubioquiet_tilde),
107 CLASS_DEFAULT, A_DEFFLOAT, 0);
108 class_addmethod(aubioquiet_tilde_class,
109 (t_method)aubioquiet_tilde_dsp,
111 class_addmethod(aubioquiet_tilde_class,
112 (t_method)aubioquiet_tilde_debug,
114 CLASS_MAINSIGNALIN(aubioquiet_tilde_class,
115 t_aubioquiet_tilde, threshold);