diff options
Diffstat (limited to 'cavoc27~.c')
| -rw-r--r-- | cavoc27~.c | 675 |
1 files changed, 675 insertions, 0 deletions
diff --git a/cavoc27~.c b/cavoc27~.c new file mode 100644 index 0000000..8fbca59 --- /dev/null +++ b/cavoc27~.c @@ -0,0 +1,675 @@ +#include "MSPd.h"
+
+#include "fftease.h"
+
+#if MSP
+void *cavoc27_class;
+#endif
+
+#if PD
+static t_class *cavoc27_class;
+#endif
+
+#define OBJECT_NAME "cavoc27~"
+
+/* NOTE THIS IS A MORE COMPLEX CA WITH 3 DIFFERENT STATES */
+
+typedef struct _cavoc27
+{
+#if MSP
+ t_pxobject x_obj;
+#endif
+#if PD
+ t_object x_obj;
+ float x_f;
+#endif
+ int R;
+ int N;
+ int N2;
+ int Nw;
+ int Nw2;
+ int D;
+ int i;
+ int inCount;
+ float *Wanal;
+ float *Wsyn;
+ float *input;
+ float *Hwin;
+ float *buffer;
+ float *channel;
+ float *ichannel; //for interpolation
+ float *tmpchannel; // for spectrum capture
+ float *output;
+ float frame_duration;
+ int max_bin;
+
+ // for CAVOC2
+
+ float fundamental;
+ float *last_frame;
+ short left;
+ short right;
+ short center;
+ short *rule;
+ float density;
+ float start_breakpoint;
+ int hold_frames;
+ int frames_left;
+ int set_count;
+ short interpolate_flag;
+ short capture_flag;
+ short capture_lock;
+ // FFT
+ // for convert
+
+ float *c_lastphase_in;
+ float *c_lastphase_out;
+ float c_fundamental;
+ float c_factor_in;
+ float c_factor_out;
+ float mult;
+ float *trigland;
+ int *bitshuffle;
+ //
+ void *list_outlet;
+ t_atom *list_data;
+ short mute;
+ int winfac;//window factor
+ int overlap;//overlap factor
+ int vs;//vector size
+ float hold_time;//hold time in seconds
+} t_cavoc27;
+
+void *cavoc27_new(t_symbol *s, int argc, t_atom *argv);
+t_int *offset_perform(t_int *w);
+t_int *cavoc27_perform(t_int *w);
+void cavoc27_dsp(t_cavoc27 *x, t_signal **sp, short *count);
+void cavoc27_assist(t_cavoc27 *x, void *b, long m, long a, char *s);
+void cavoc27_free( t_cavoc27 *x);
+int cavoc27_apply_rule( short left, short right, short center, short *rule);
+float cavoc27_randf(float min, float max);
+void cavoc27_rule (t_cavoc27 *x, t_symbol *msg, short argc, t_atom *argv);
+void cavoc27_density (t_cavoc27 *x, t_floatarg density);
+void cavoc27_hold_time (t_cavoc27 *x, t_floatarg hold_time);
+void cavoc27_interpolate (t_cavoc27 *x, t_floatarg interpolate);
+void cavoc27_capture_spectrum (t_cavoc27 *x, t_floatarg flag );
+void cavoc27_capture_lock (t_cavoc27 *x, t_floatarg toggle );
+void cavoc27_retune (t_cavoc27 *x, t_floatarg min, t_floatarg max);
+void cavoc27_mute (t_cavoc27 *x, t_floatarg toggle);
+void cavoc27_init(t_cavoc27 *x,short initialized);
+void cavoc27_rand_set_spectrum(t_cavoc27 *x);
+void cavoc27_rand_set_rule(t_cavoc27 *x);
+void cavoc27_fftinfo(t_cavoc27 *x);
+void cavoc27_overlap(t_cavoc27 *x, t_floatarg f);
+void cavoc27_winfac(t_cavoc27 *x, t_floatarg f);
+
+#if MSP
+void main(void)
+{
+ setup((t_messlist **)&cavoc27_class, (method)cavoc27_new, (method)cavoc27_free,
+ (short)sizeof(t_cavoc27), 0, A_GIMME, 0);
+ addmess((method)cavoc27_dsp, "dsp", A_CANT, 0);
+ addmess((method)cavoc27_assist,"assist",A_CANT,0);
+ addmess((method)cavoc27_rule,"rule",A_GIMME,0);
+ addmess((method)cavoc27_density,"density",A_FLOAT,0);
+ addmess((method)cavoc27_hold_time,"hold_time",A_FLOAT,0);
+ addmess((method)cavoc27_interpolate,"interpolate",A_FLOAT,0);
+ addmess((method)cavoc27_overlap,"overlap",A_FLOAT,0);
+ addmess((method)cavoc27_winfac,"winfac",A_FLOAT,0);
+ addmess((method)cavoc27_fftinfo,"fftinfo",0);
+ addmess((method)cavoc27_retune,"retune",A_FLOAT,A_FLOAT,0);
+ addmess((method)cavoc27_capture_spectrum,"capture_spectrum",A_FLOAT,0);
+ addmess((method)cavoc27_mute,"mute",A_FLOAT,0);
+ dsp_initclass();
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+#if PD
+/* Pd Initialization */
+void cavoc27_tilde_setup(void)
+{
+ cavoc27_class = class_new(gensym("cavoc27~"), (t_newmethod)cavoc27_new,
+ (t_method)cavoc27_free ,sizeof(t_cavoc27), 0,A_GIMME,0);
+ CLASS_MAINSIGNALIN(cavoc27_class, t_cavoc27, x_f);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_dsp, gensym("dsp"), 0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_mute, gensym("mute"), A_FLOAT,0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_rule, gensym("rule"), A_GIMME,0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_density, gensym("density"), A_DEFFLOAT,0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_hold_time, gensym("hold_time"), A_DEFFLOAT,0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_interpolate, gensym("interpolate"), A_DEFFLOAT, 0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_capture_spectrum, gensym("capture_spectrum"), A_FLOAT, 0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_retune, gensym("retune"), A_DEFFLOAT,A_DEFFLOAT,0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_overlap, gensym("overlap"), A_FLOAT, 0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_winfac, gensym("winfac"), A_FLOAT, 0);
+ class_addmethod(cavoc27_class, (t_method)cavoc27_fftinfo, gensym("fftinfo"), 0);
+ post("%s %s",OBJECT_NAME,FFTEASE_ANNOUNCEMENT);
+}
+#endif
+
+void cavoc27_rand_set_rule(t_cavoc27 *x)
+{
+int i;
+float rval;
+ for( i = 0; i < 27; i++ ){
+ rval = cavoc27_randf(0.0,1.0);
+ if( rval < .333 )
+ x->rule[i] = 0;
+ else if(rval < .666 )
+ x->rule[i] = 1;
+ else x->rule[i] = 2;
+ }
+}
+
+void cavoc27_retune(t_cavoc27 *x, t_floatarg min, t_floatarg max)
+{
+ int i;
+
+ if( max <= 0 || min <= 0 || min > max ){
+ error("bad values for min and max multipliers");
+ return;
+ }
+ if( min < .1 )
+ min = 0.1;
+ if( max > 2.0 )
+ max = 2.0;
+ for( i = 0; i < x->N2 + 1; i++ ){
+ x->channel[ i * 2 + 1 ] = x->c_fundamental * (float) (i / 2) * cavoc27_randf(min, max);
+ }
+
+}
+
+void cavoc27_density(t_cavoc27 *x, t_floatarg density)
+{
+ int i;
+ if( density < 0.0001 ){
+ density = .0001;
+ } else if( density > .9999 ){
+ density = 1.0;
+ }
+ x->density = density;
+ x->start_breakpoint = 1.0 - x->density;
+ for( i = 0; i < x->N2 + 1; i++ ){
+ if( cavoc27_randf(0.0, 1.0) > x->start_breakpoint ){
+ if( cavoc27_randf(0.0,1.0) > 0.5 ){
+ x->channel[ i * 2 ] = 1;
+ }
+ else {
+ x->channel[ i * 2 ] = 2;
+ }
+ ++(x->set_count);
+ } else {
+ x->channel[ i * 2 ] = 0;
+ }
+ }
+ for( i = 0; i < x->N+2; i++ ){
+ x->last_frame[i] = x->channel[i];
+ }
+}
+
+void cavoc27_mute (t_cavoc27 *x, t_floatarg toggle)
+{
+ x->mute = (short)toggle;
+}
+
+void cavoc27_hold_time(t_cavoc27 *x, t_floatarg hold_time)
+{
+
+ if(hold_time <= 0){
+ post("illegal hold time %f",hold_time);
+ return;
+ }
+ x->hold_time = hold_time;
+ if(! x->frame_duration){
+ error("%s: zero frame duration",OBJECT_NAME);
+ x->frame_duration = .15;
+ }
+ x->hold_frames = (int) ( (hold_time/1000.0) / x->frame_duration);
+ if( x->hold_frames < 1 )
+ x->hold_frames = 1;
+ // x->frames_left = x->hold_frames;
+
+}
+
+void cavoc27_interpolate(t_cavoc27 *x, t_floatarg flag)
+{
+ x->interpolate_flag = (short) flag;
+}
+
+void cavoc27_capture_spectrum(t_cavoc27 *x, t_floatarg flag )
+{
+// now identical to capture_lock
+ x->capture_lock = (short)flag;
+}
+
+void cavoc27_capture_lock(t_cavoc27 *x, t_floatarg flag )
+{
+ x->capture_lock = (short)flag;
+}
+
+void cavoc27_rule (t_cavoc27 *x, t_symbol *msg, short argc, t_atom *argv)
+{
+ int i;
+ short *rule = x->rule;
+ if( argc != 27 ){
+ error("the rule must be size 18");
+ return;
+ }
+
+ for( i = 0; i < 27; i++ ){
+ rule[i] = (short) atom_getfloatarg( i, argc, argv);
+ }
+}
+
+void cavoc27_free( t_cavoc27 *x ){
+#if MSP
+ dsp_free( (t_pxobject *) x);
+#endif
+ free(x->trigland);
+ free(x->bitshuffle);
+ free(x->Wanal);
+ free(x->Wsyn);
+ free(x->input);
+ free(x->Hwin);
+ free(x->buffer);
+ free(x->channel);
+ free(x->ichannel);
+ free(x->tmpchannel);
+ free(x->last_frame);
+ free(x->output);
+ free(x->c_lastphase_out);
+ free(x->rule);
+}
+
+void cavoc27_assist (t_cavoc27 *x, void *b, long msg, long arg, char *dst)
+{
+ if (msg==1) {
+ switch (arg) {
+ case 0:
+ sprintf(dst,"unused(signal)");
+ break;
+ }
+ } else if (msg==2) {
+ switch (arg) {
+ case 0:
+ sprintf(dst,"output(signal)"); break;
+ }
+ }
+}
+
+void *cavoc27_new(t_symbol *s, int argc, t_atom *argv)
+{
+#if MSP
+ t_cavoc27 *x = (t_cavoc27 *)newobject(cavoc27_class);
+ dsp_setup((t_pxobject *)x,1);
+ outlet_new((t_pxobject *)x, "signal");
+#endif
+#if PD
+ int i;
+ t_cavoc27 *x = (t_cavoc27 *)pd_new(cavoc27_class);
+ outlet_new(&x->x_obj, gensym("signal"));
+#endif
+
+ x->overlap = 0;
+ x->winfac=0;
+ x->hold_time=0;
+ x->density = 0;
+
+ x->density = atom_getfloatarg(0,argc,argv);
+ x->hold_time = atom_getfloatarg(1,argc,argv) * .001;// convert to seconds
+ x->overlap = atom_getfloatarg(2,argc,argv);
+ x->winfac = atom_getfloatarg(3,argc,argv);
+
+ if(x->density <= 0)
+ x->density = .0001;
+ if(x->density >= 1)
+ x->density = .9999;
+ x->start_breakpoint = 1.0 - x->density;
+ if(!x->hold_time)
+ x->hold_time = 0.15;
+
+ x->vs = sys_getblksize();
+ x->R = sys_getsr();
+
+ cavoc27_init(x,0);
+ return (x);
+}
+
+void cavoc27_overlap(t_cavoc27 *x, t_floatarg f)
+{
+int i = (int) f;
+ if(!power_of_two(i)){
+ post("%f is not a power of two",f);
+ return;
+ }
+ x->overlap = i;
+ cavoc27_init(x,1);
+}
+
+void cavoc27_winfac(t_cavoc27 *x, t_floatarg f)
+{
+int i = (int)f;
+
+ if(!power_of_two(i)){
+ error("%f is not a power of two",f);
+ return;
+ }
+ x->winfac = i;
+ cavoc27_init(x,2);
+}
+
+void cavoc27_fftinfo(t_cavoc27 *x)
+{
+ if( ! x->overlap ){
+ post("zero overlap!");
+ return;
+ }
+ post("%s: FFT size %d, hopsize %d, windowsize %d", OBJECT_NAME, x->N, x->N/x->overlap, x->Nw);
+}
+
+
+void cavoc27_init(t_cavoc27 *x,short initialized)
+{
+int i;
+
+ if(!power_of_two(x->overlap))
+ x->overlap = 4;
+ if(!power_of_two(x->winfac))
+ x->winfac = 1;
+//post("init with o %d and wf %d",x->overlap,x->winfac);
+ x->D = x->vs;
+ x->N = x->D * x->overlap;
+ x->Nw = x->N * x->winfac;
+ limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
+
+
+ x->N2 = (x->N)>>1;
+ x->Nw2 = (x->Nw)>>1;
+ x->inCount = -(x->Nw);
+ x->mult = 1. / (float) x->N;
+ x->c_fundamental = (float) x->R/( (x->N2)<<1 );
+ x->c_factor_out = TWOPI * (float) x->D / (float) x->R;
+ x->c_factor_in = (float) x->R/((float)x->D * TWOPI);
+ x->frame_duration = (float)x->D/(float) x->R;
+ x->hold_frames = (int) (x->hold_time/x->frame_duration);
+ x->frames_left = x->hold_frames;
+// x->frames_left = 0;
+ x->set_count = 0;
+
+ if(!initialized){
+ srand(time(0));
+ x->interpolate_flag = 0;
+ x->capture_lock = 0;
+
+ x->mute = 0;
+ x->Wanal = (float *) calloc(MAX_Nw, sizeof(float));
+ x->Wsyn = (float *) calloc(MAX_Nw, sizeof(float));
+ x->input = (float *) calloc(MAX_Nw, sizeof(float));
+ x->Hwin = (float *) calloc(MAX_Nw, sizeof(float));
+ x->buffer = (float *) calloc(MAX_N, sizeof(float));
+ x->channel = (float *) calloc(MAX_N+2, sizeof(float));
+ x->ichannel = (float *) calloc(MAX_N+2, sizeof(float));
+ x->tmpchannel = (float *) calloc(MAX_N+2, sizeof(float));
+ x->rule = (short *) calloc(27, sizeof(short));
+ x->last_frame = (float *) calloc(MAX_N+2, sizeof(float));
+ x->output = (float *) calloc(MAX_Nw, sizeof(float));
+ x->bitshuffle = (int *) calloc(MAX_N * 2, sizeof(int));
+ x->trigland = (float *) calloc(MAX_N * 2, sizeof(float));
+ x->c_lastphase_in = (float *) calloc(MAX_N2+1, sizeof(float));
+ x->c_lastphase_out = (float *) calloc(MAX_N2+1, sizeof(float));
+
+
+ }
+ memset((char *)x->input,0,x->Nw * sizeof(float));
+ memset((char *)x->output,0,x->Nw * sizeof(float));
+ memset((char *)x->buffer,0,x->N * sizeof(float));
+ memset((char *)x->c_lastphase_in,0,(x->N2+1) * sizeof(float));
+ memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));
+
+
+ cavoc27_rand_set_rule(x);
+ init_rdft( x->N, x->bitshuffle, x->trigland);
+ makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
+ cavoc27_rand_set_spectrum(x);
+ for( i = 0; i < x->N+2; i++ ){
+ x->last_frame[i] = x->channel[i];
+ }
+}
+
+void cavoc27_rand_set_spectrum(t_cavoc27 *x)
+{
+int i;
+float rval;
+
+ //set spectrum
+ for( i = 0; i < x->N2 + 1; i++ ){
+ if( cavoc27_randf(0.0, 1.0) > x->start_breakpoint){
+ rval = cavoc27_randf(0.0, 1.0);
+ if( rval < 0.5 ){
+ x->channel[ i * 2 ] = 1;
+ }
+ else {
+ x->channel[ i * 2 ] = 2;
+ }
+ ++(x->set_count);
+ } else {
+ x->channel[ i * 2 ] = 0;
+ }
+ x->channel[ i * 2 + 1 ] = x->c_fundamental * (float) (i / 2) * cavoc27_randf(.9,1.1);
+ }
+}
+
+t_int *cavoc27_perform(t_int *w)
+{
+ int i,j;
+ float m1,m2;
+ ////////////
+ t_cavoc27 *x = (t_cavoc27 *) (w[1]);
+
+ float *in = (t_float *)(w[2]);
+ float *out = (t_float *)(w[3]);
+ t_int n = w[4];
+
+ int frames_left = x->frames_left;
+ float *input = x->input;
+ float *buffer = x->buffer;
+ int inCount = x->inCount;
+ int R = x->R;
+ int N = x->N;
+ int N2 = x->N2;
+ int D = x->D;
+ int Nw = x->Nw;
+ float *Wanal = x->Wanal;
+ float *Wsyn = x->Wsyn;
+ float *output = x->output;
+ float *channel = x->channel;
+ float *tmpchannel = x->tmpchannel;
+ float *ichannel = x->ichannel;
+ float mult = x->mult ;
+ int *bitshuffle = x->bitshuffle;
+ float *trigland = x->trigland ;
+ int hold_frames = x->hold_frames;
+ short *rule = x->rule;
+ short left = x->left;
+ short right = x->right;
+ short center = x->center;
+ float *last_frame = x->last_frame;
+ float *c_lastphase_out = x->c_lastphase_out;
+ float *c_lastphase_in = x->c_lastphase_in;
+ float c_fundamental = x->c_fundamental;
+ float c_factor_out = x->c_factor_out;
+ float c_factor_in = x->c_factor_in;
+ short interpolate_flag = x->interpolate_flag;
+
+
+ if( x->mute ){
+ while( n-- ){
+ *out++ = 0.0;
+ }
+ return (w+5);
+ }
+
+ x->inCount += D;
+
+ if( x->capture_flag || x->capture_lock ) {
+
+
+ for ( j = 0 ; j < (Nw - D) ; j++ ){
+ input[j] = input[j+D];
+ }
+ for ( j = (Nw-D), i = 0 ; j < Nw; j++, i++ ) {
+ input[j] = *in++;
+ }
+
+ fold( input, Wanal, Nw, buffer, N, x->inCount );
+ rdft( N, 1, buffer, bitshuffle, trigland );
+ convert( buffer, tmpchannel, N2, c_lastphase_in, c_fundamental, c_factor_in );
+
+ // ONLY COPY PHASES
+ for( i = 1; i < N+2; i += 2 ){
+ channel[i] = tmpchannel[i];
+ // last_frame[i] = channel[i] = tmpchannel[i];
+ }
+
+ if( x->capture_flag ){
+ --(x->capture_flag);
+ }
+ // on final frame - swap in channel (just phases though )
+
+
+ }
+ if( --frames_left <= 0){
+ /* save composite frame for next time (only amps) */
+/* for( i = 0; i < N+1; i++ ){
+ last_frame[i] = channel[i];
+ }*/
+
+ for( i = 0; i < N+1; i += 2 ){
+ last_frame[i] = channel[i];
+ }
+
+ frames_left = hold_frames;
+ for( i = 2; i < N; i+=2 ){
+ left = last_frame[ i - 2 ];
+ center = last_frame[i] ;
+ right = last_frame[i+2];
+ channel[i] = cavoc27_apply_rule(left, right, center, rule );
+ }
+ /* boundary cases */
+ center = last_frame[0];
+ right = last_frame[2];
+ left = last_frame[N];
+ channel[0] = cavoc27_apply_rule(left, right, center, rule );
+
+ center = last_frame[N];
+ right = last_frame[0];
+ left = last_frame[N - 2];
+ channel[N] = cavoc27_apply_rule(left, right, center, rule );
+ }
+ if( interpolate_flag ){
+ m1 = (float) frames_left / (float) hold_frames ;
+ m2 = 1.0 - m1;
+ for( i = 0; i <N+2; i += 2 ){
+ ichannel[i] = m1 * last_frame[i] + m2 * channel[i];
+ ichannel[i+1] = channel[i+1];
+ }
+
+ unconvert( ichannel, buffer, N2, c_lastphase_out, c_fundamental, c_factor_out );
+ } else {
+ unconvert( channel, buffer, N2, c_lastphase_out, c_fundamental, c_factor_out );
+ }
+ rdft( N, -1, buffer, bitshuffle, trigland );
+ overlapadd( buffer, N, Wsyn, output, Nw, inCount);
+
+ for ( j = 0; j < D; j++ )
+ *out++ = output[j] * mult;
+
+ for ( j = 0; j < Nw - D; j++ )
+ output[j] = output[j+D];
+
+ for ( j = Nw - D; j < Nw; j++ )
+ output[j] = 0.;
+
+ /* restore state variables */
+ x->inCount = inCount;
+ x->frames_left = frames_left;
+ return (w+5);
+}
+
+int cavoc27_apply_rule( short left, short right, short center, short *rule){
+
+ if( left == 0 && center == 0 && right == 0 )
+ return rule[0];
+ if( left == 1 && center == 0 && right == 1 )
+ return rule[1];
+ if( left == 1 && center == 0 && right == 0 )
+ return rule[2];
+ if( left == 0 && center == 0 && right == 1 )
+ return rule[3];
+ if( left == 2 && center == 0 && right == 2 )
+ return rule[4];
+ if( left == 2 && center == 0 && right == 0 )
+ return rule[5];
+ if( left == 0 && center == 0 && right == 2 )
+ return rule[6];
+ if( left == 2 && center == 0 && right == 1 )
+ return rule[7];
+ if( left == 1 && center == 0 && right == 2 )
+ return rule[8];
+
+ if( left == 0 && center == 1 && right == 0 )
+ return rule[9];
+ if( left == 1 && center == 1 && right == 1 )
+ return rule[10];
+ if( left == 1 && center == 1 && right == 0 )
+ return rule[11];
+ if( left == 0 && center == 1 && right == 1 )
+ return rule[12];
+ if( left == 2 && center == 1 && right == 2 )
+ return rule[13];
+ if( left == 2 && center == 1 && right == 0 )
+ return rule[14];
+ if( left == 0 && center == 1 && right == 2 )
+ return rule[15];
+ if( left == 2 && center == 1 && right == 1 )
+ return rule[16];
+ if( left == 1 && center == 1 && right == 2 )
+ return rule[17];
+
+ if( left == 0 && center == 2 && right == 0 )
+ return rule[18];
+ if( left == 1 && center == 2 && right == 1 )
+ return rule[19];
+ if( left == 1 && center == 2 && right == 0 )
+ return rule[20];
+ if( left == 0 && center == 2 && right == 1 )
+ return rule[21];
+ if( left == 2 && center == 2 && right == 2 )
+ return rule[22];
+ if( left == 2 && center == 2 && right == 0 )
+ return rule[23];
+ if( left == 0 && center == 2 && right == 2 )
+ return rule[24];
+ if( left == 2 && center == 2 && right == 1 )
+ return rule[25];
+ if( left == 1 && center == 2 && right == 2 )
+ return rule[26];
+ return 0; //should never happen
+}
+
+float cavoc27_randf(float min, float max)
+{
+ float randv, retval;
+
+ randv = (float) (rand() % 32768) / 32768.0 ;
+ return (retval = min + (max-min) * randv) ;
+}
+void cavoc27_dsp(t_cavoc27 *x, t_signal **sp, short *count)
+{
+ if(x->vs != sp[0]->s_n || x->R != sp[0]->s_sr) {
+ x->vs = sp[0]->s_n;
+ x->R = sp[0]->s_sr;
+ cavoc27_init(x,1);
+ }
+ dsp_add(cavoc27_perform, 4, x, sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
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