示例#1
0
void shapee_init(t_shapee *x, short initialized)
{
  int i;
  x->D = x->vs;
  x->N = x->vs * 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;
  
	if(!initialized){
	  x->mute = 0;

	  x->Wanal = (float *) getbytes( MAX_Nw * sizeof(float) );	
	  x->Wsyn = (float *) getbytes( MAX_Nw * sizeof(float) );	
	  x->Hwin = (float *) getbytes( MAX_Nw * sizeof(float) ); 
	  x->inputOne = (float *) getbytes( MAX_Nw * sizeof(float) );
	  x->inputTwo = (float *) getbytes( MAX_Nw * sizeof(float) );	
	  x->bufferOne = (float *) getbytes( MAX_N  * sizeof(float) );
	  x->bufferTwo = (float *) getbytes( MAX_N  * sizeof(float) ); 
	  x->channelOne = (float *) getbytes(  (MAX_N+2) * sizeof(float) );
	  x->channelTwo = (float *) getbytes(  (MAX_N+2) * sizeof(float) );
	  x->output = (float *) getbytes( MAX_Nw * sizeof(float) );
	  x->bitshuffle = (int *) getbytes( MAX_N * 2 * sizeof( int ) );
	  x->trigland = (float *) getbytes( MAX_N * 2 * sizeof( float ) );
	}
	memset((char *)x->inputOne,0,x->Nw * sizeof(float));
	memset((char *)x->inputTwo,0,x->Nw * sizeof(float));
	memset((char *)x->output,0,x->Nw * sizeof(float));

  init_rdft(x->N, x->bitshuffle, x->trigland);
  makehanning(x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 1);// wants an ODD window
}
示例#2
0
文件: leaker~.c 项目: Angeldude/pd
void leaker_init(t_leaker *x, short initialized)
{
	int i;
	if(!power_of_two(x->overlap))
		x->overlap = 4;
	if(!power_of_two(x->winfac))
		x->winfac = 2;
	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_in =  (float) x->R/((float)x->D * TWOPI);
	x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;
	
	if(!initialized) {
		x->mute = 0;
		x->bypass = 0;
		x->fade_connected = 0;
		x->fade_value = 0;
		
		x->input1 = (float *) getbytes(MAX_Nw * sizeof(float));	
		x->buffer1 = (float *) getbytes(MAX_N * sizeof(float));
		x->channel1 = (float *) getbytes((MAX_N+2) * sizeof(float));
		x->input2 = (float *) getbytes(MAX_Nw * sizeof(float));	
		x->buffer2 = (float *) getbytes(MAX_N * sizeof(float));
		x->channel2 = (float *) getbytes((MAX_N+2) * sizeof(float));
		x->Wanal = (float *) getbytes(MAX_Nw * sizeof(float));	
		x->Wsyn = (float *) getbytes(MAX_Nw * sizeof(float));	
		x->Hwin = (float *) getbytes(MAX_Nw * sizeof(float));
		x->output = (float *) getbytes(MAX_Nw * sizeof(float));
		x->bitshuffle = (int *) getbytes (MAX_N * 2 * sizeof( int ));
		x->trigland = (float *) getbytes(MAX_N * 2 * sizeof( float ));	  
		x->sieve = (int *) getbytes((MAX_N2 + 1) * sizeof(int));
		x->c_lastphase_in1 = (float *) getbytes((MAX_N2+1) * sizeof(float));
		x->c_lastphase_in2 = (float *) getbytes((MAX_N2+1) * sizeof(float));
		x->c_lastphase_out = (float *) getbytes((MAX_N2+1) * sizeof(float));
		
	}  

		memset((char *)x->input1,0,x->Nw);
		memset((char *)x->input2,0,x->Nw);
		memset((char *)x->output,0,x->Nw);
		memset((char *)x->c_lastphase_in1,0,(x->N2+1) * sizeof(float));
		memset((char *)x->c_lastphase_in2,0,(x->N2+1) * sizeof(float));
		memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));

	init_rdft(x->N, x->bitshuffle, x->trigland);
	makehanning(x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
	if(initialized != 2){
		for(i = 0; i < x->N2; i++){
			x->sieve[i] = i;
		}
	}
}
示例#3
0
void crossx_init(t_crossx *x, short initialized)
{
  int i;
  
  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_in =  (float) x->R/((float)x->D * TWOPI);
  x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;
	if(!initialized){
      x->threshie = .001 ;
      x->autonorm = 0;
        x->mute = 0;
	  x->Wanal = (float *) getbytes((MAX_Nw) * sizeof(float));	
	  x->Wsyn = (float *) getbytes((MAX_Nw) * sizeof(float));	
	  x->Hwin = (float *) getbytes((MAX_Nw) * sizeof(float));
	  x->output = (float *) getbytes((MAX_Nw) * sizeof(float));
	  x->bitshuffle = (int *) getbytes((MAX_N * 2)* sizeof(int));
	  x->trigland = (float *) getbytes((MAX_N * 2)* sizeof(float));

	  x->input1 = (float *) getbytes(MAX_Nw * sizeof(float));	
	  x->buffer1 = (float *) getbytes(MAX_N * sizeof(float));
	  x->channel1 = (float *) getbytes((MAX_N+2) * sizeof(float));
	  x->input2 = (float *) getbytes(MAX_Nw * sizeof(float));	
	  x->buffer2 = (float *) getbytes(MAX_N * sizeof(float));
	  x->channel2 = (float *) getbytes((MAX_N+2) * sizeof(float));
	  x->last_channel = (float *) getbytes((MAX_N+2) * sizeof(float));
	  x->c_lastphase_in1 = (float *) getbytes((MAX_N2+1) * sizeof(float));
	  x->c_lastphase_in2 = (float *) getbytes((MAX_N2+1) * sizeof(float));
	  x->c_lastphase_out = (float *) getbytes((MAX_N2+1) * sizeof(float));
	} 
		memset((char *)x->input1,0,x->Nw * sizeof(float));
		memset((char *)x->input2,0,x->Nw * sizeof(float));
		memset((char *)x->output,0,x->Nw * sizeof(float));
		memset((char *)x->buffer1,0,x->N * sizeof(float));
		memset((char *)x->buffer2,0,x->N * sizeof(float));
		memset((char *)x->channel1,0,(x->N+2) * sizeof(float));
		memset((char *)x->channel2,0,(x->N+2) * sizeof(float));
		memset((char *)x->c_lastphase_in1,0,(x->N2+1) * sizeof(float));
		memset((char *)x->c_lastphase_in2,0,(x->N2+1) * sizeof(float));
		memset((char *)x->c_lastphase_out,0,(x->N2+1) * sizeof(float));
	
  init_rdft( x->N, x->bitshuffle, x->trigland);
  makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
}
示例#4
0
文件: drown~.c 项目: Angeldude/pd
void drown_init(t_drown *x, short initialized)
{
	int i;
	int mem;
	
	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;
	
	if(!initialized){
		x->mute = 0;
		x->peakflag = 0;
		mem = (MAX_Nw) * sizeof(float);
		x->input = (float *) getbytes(mem);	
		x->output = (float *) getbytes(mem);
		x->Wanal = (float *) getbytes(mem);	
		x->Wsyn = (float *) getbytes(mem);	
		x->Hwin = (float *) getbytes(mem);
		mem = (MAX_N) * sizeof(float);
		x->buffer = (float *) getbytes(mem); 
		mem = (MAX_N+2) * sizeof(float);
		x->channel = (float *) getbytes(mem);
		mem = (MAX_N) * sizeof(int);
		x->bitshuffle = (int *) getbytes(mem);
		mem = (MAX_N) * sizeof(float);
		x->trigland = (float *) getbytes(mem);
	} 
		memset((char *)x->input,0,x->Nw * sizeof(float));
		memset((char *)x->output,0,x->Nw * sizeof(float));

	makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
	init_rdft( x->N, x->bitshuffle, x->trigland);
}
示例#5
0
void thresher_init(t_thresher *x, short initialized)
{
	int i;
	
	if(!x->D)
		x->D = 256;
	if(!x->R)
		x->R = 44100;
	if(!fftease_power_of_two(x->overlap) )
		x->overlap = 4;
	if(!fftease_power_of_two(x->winfac) )
		x->winfac = 1;
	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->in_count = -(x->Nw);
	x->mult = 1. / (float) x->N;
	x->tadv = (float) x->D / (float) x->R ;
	
	
	
	if(!initialized){
		x->mute = 0;
		x->bypass = 0;
		if(!x->damping_factor){
			x->damping_factor = .95;
		}
		if(!x->move_threshold){
			x->move_threshold = .00001 ;
		}
		x->first_frame = 1;
		
		x->max_hold_time = DEFAULT_HOLD ;
		x->max_hold_frames = x->max_hold_time / x->tadv;
		x->c_fundamental =  (float) x->R/( (x->N2)<<1 );
		x->c_factor_in =  (float) x->R/((float)x->D * TWOPI);
		x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;
		
		x->Wanal = (float *) getbytes( (MAX_Nw) * sizeof(float));	
		x->Wsyn = (float *) getbytes( (MAX_Nw) * sizeof(float));	
		x->Hwin = (float *) getbytes( (MAX_Nw) * sizeof(float));	
		x->input = (float *) getbytes( MAX_Nw * sizeof(float) );	
		x->output = (float *) getbytes( MAX_Nw * sizeof(float) );
		x->buffer = (float *) getbytes( MAX_N * sizeof(float) );
		x->channel = (float *) getbytes( (MAX_N+2) * sizeof(float) );
		x->bitshuffle = (int *) getbytes( MAX_N * 2 * sizeof( int ) );
		x->trigland = (float *) getbytes( MAX_N * 2 * sizeof( float ) );
		x->c_lastphase_in = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
		x->c_lastphase_out = (float *) getbytes( (MAX_N2+1) * sizeof(float) );
		x->composite_frame = (float *) getbytes( (MAX_N+2) * sizeof(float) );
		x->frames_left = (int *) getbytes( (MAX_N+2) * sizeof(int) );
		
	}
	memset((char *)x->input,0,x->Nw * sizeof(float));
	memset((char *)x->output,0,x->Nw * 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));  
	memset((char *)x->frames_left,0,(x->N+2) * sizeof(float));
	
	init_rdft(x->N, x->bitshuffle, x->trigland);
	makehanning(x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
}
示例#6
0
文件: bthresher~.c 项目: Angeldude/pd
void bthresher_init(t_bthresher *x, short initialized)
{
int i; 

  if(!x->D)
    x->D = 256;
  if(!x->R)
    x->R = 44100;
  if(!power_of_two(x->overlap))
    x->overlap = 4;
  if(!power_of_two(x->winfac))
    x->winfac = 1;

  x->N = x->D * x->overlap;
  x->Nw = x->N * x->winfac;
    
limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);

  x->mult = 1. / (float) x->N;
  x->N2 = (x->N)>>1;
  x->Nw2 = (x->Nw)>>1;
  x->in_count = -(x->Nw);
  x->c_fundamental =  (float) x->R/((x->N2)<<1 );
  x->c_factor_in =  (float) x->R/((float)x->D * TWOPI);
  x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;
	      
	if(!initialized){
	  x->first_frame = 1;
	  x->max_hold_time = 60.0 ;
	  x->thresh_connected = 0;
	  x->damping_connected = 0;
	  x->thresh_scalar = 1;
	  x->damp_scalar = 1;
	  x->mute = 0;
	  x->bypass = 0;
	  x->inf_hold = 0;
	  x->Wanal = (float *) getbytes((MAX_Nw) * sizeof(float));	
	  x->Wsyn = (float *) getbytes((MAX_Nw) * sizeof(float));	
	  x->Hwin = (float *) getbytes((MAX_Nw) * sizeof(float));
	  x->input = (float *) getbytes((MAX_Nw) * sizeof(float));	
	  x->buffer = (float *) getbytes((MAX_N) * sizeof(float));
	  x->channel = (float *) getbytes(((MAX_N+2)) * sizeof(float));
	  x->output = (float *) getbytes((MAX_Nw) * sizeof(float));
	  x->bitshuffle = (int *) getbytes((MAX_N * 2) * sizeof(int));
	  x->trigland = (float *) getbytes((MAX_N * 2) * sizeof(float));

	  x->c_lastphase_in = (float *) getbytes((MAX_N2+1)* sizeof(float));
	  x->c_lastphase_out = (float *) getbytes((MAX_N2+1)* sizeof(float));
	  	  	  
	  x->composite_frame = (float *) getbytes( (MAX_N+2)* sizeof(float));
	  x->frames_left = (int *) getbytes((MAX_N+2)* sizeof(int));

	  // TRIPLETS OF bin# damp_factor threshold
	  x->list_data = (t_atom *) getbytes((MAX_N2 + 1) * 3 * sizeof(t_atom));

	  x->move_threshold = (float *) getbytes((MAX_N2+1)* sizeof(float));
	  x->damping_factor = (float *) getbytes((MAX_N2+1)* sizeof(float));
	  

	} 
  if(initialized == 0 || initialized == 1){
	  for(i = 0; i < x->N2+1; i++) {
	    x->move_threshold[i] = x->init_thresh;
	    x->damping_factor[i] = x->init_damping;
	  }
  }

	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));


  x->tadv = (float) x->D / (float) x->R;
  x->max_hold_frames = x->max_hold_time / x->tadv;
  init_rdft(x->N, x->bitshuffle, x->trigland);
  makehanning(x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);
}
示例#7
0
void pvtuner_init(t_pvtuner *x,short initialized)
{
    int i, j;
    int mem;
    float curfreq;

    if(!x->R)//temp init if MSP functions returned zero
        x->R = 44100;
    if(!x->D)
        x->D = 256;

    if(!power_of_two(x->overlap))
        x->overlap = 4;
    if(!power_of_two(x->winfac))
        x->winfac = 2;

    x->Iinv = 1./x->D;
    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/(float)( (x->N2)<<1 );
    x->c_factor_in =  (float) x->R/((float)x->D * TWOPI);
    x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;

    if(!initialized) {
        x->P = 1.0 ; // default
        x->bypass_state = 0;
        x->mute = 0;
        x->L = 8192;
        x->synt = .000001;
        mem = (MAX_Nw)*sizeof(float);
        x->Wanal = (float *) getbytes(mem);
        x->Wsyn = (float *) getbytes(mem);
        x->Hwin = (float *) getbytes(mem);
        x->input = (float *) getbytes(mem);
        x->output = (float *) getbytes(mem);
        mem = (MAX_N)*sizeof(float);
        x->buffer = (float *) getbytes(mem);
        mem = (MAX_N+2)*sizeof(float);
        x->channel = (float *) getbytes(mem);
        mem = (MAX_N*2)*sizeof(int);
        x->bitshuffle = (int *) getbytes(mem);
        mem = (MAX_N*2)*sizeof(float);
        x->trigland = (float *) getbytes(mem);
        mem = (MAXTONES+1)*sizeof(float);
        x->pitchgrid = (float *) getbytes(mem);
        mem = (MAX_N+1)*sizeof(float);
        x->lastamp = (float *) getbytes(mem);
        x->lastfreq = (float *) getbytes(mem);
        x->bindex = (float *) getbytes(mem);
        mem = (x->L)*sizeof(float);
        x->table = (float *) getbytes(mem);
        mem = (MAX_N2+1)*sizeof(float);
        x->c_lastphase_in = (float *) getbytes(mem);
        x->c_lastphase_out = (float *)getbytes(mem);

        x->pbase = BASE_FREQ;
        pvtuner_diatonic(x);// default scale
    }
    memset((char *)x->input,0,x->Nw * sizeof(float));
    memset((char *)x->output,0,x->Nw * sizeof(float));
    memset((char *)x->lastamp,0,(x->N+1) * sizeof(float));
    memset((char *)x->lastfreq,0,(x->N+1) * sizeof(float));
    memset((char *)x->bindex,0,(x->N+1) * 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));

    for ( i = 0; i < x->L; i++ ) {
        x->table[i] = (float) x->N * cos((float)i * TWOPI / (float)x->L);
    }

    if( x->hifreq < x->c_fundamental ) {
        x->hifreq = 3000.0 ;
    }

    x->hi_bin = 1;
    x->curfreq = 0;

    while( x->curfreq < x->hifreq ) {
        ++(x->hi_bin);
        x->curfreq += x->c_fundamental ;
    }

    x->lo_bin = 0;
    x->curfreq = 0;
    while( x->curfreq < x->lofreq ) {
        ++(x->lo_bin);
        x->curfreq += x->c_fundamental ;
    }

    if( x->hi_bin >= x->N2 )
        x->hi_bin = x->N2 - 1;

    x->hi_tune_bin = x->hi_bin;
    x->myPInc = x->P*x->L/x->R;
    x->ffac = x->P * PI/x->N;

    init_rdft( x->N, x->bitshuffle, x->trigland);
    makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);

}
示例#8
0
文件: cavoc~.c 项目: Angeldude/pd
void cavoc_init(t_cavoc *x,short initialized)
{
int i;

  if(!x->D)
    x->D = 256;
  if(!x->R)
    x->R = 44100;
  if(!power_of_two(x->overlap))
    x->overlap = 4;
  if(!power_of_two(x->winfac))
    x->winfac = 1;
  x->N = x->D * x->overlap;
  x->Nw = x->N * x->winfac;
limit_fftsize(&x->N,&x->Nw,OBJECT_NAME);
  x->mult = 1. / (float) x->N;
  x->N2 = (x->N)>>1;
  x->Nw2 = (x->Nw)>>1;
  x->in_count = -(x->Nw);
  x->c_fundamental =  (float) x->R/(float)((x->N2)<<1);
  x->frame_duration = (float)x->D/(float) x->R;
  if(x->hold_time <= 100) /* in milliseconds */
  	x->hold_time = 100;


  cavoc_hold_time(x, x->hold_time);  	

	if(!initialized){
	  
	  srand(time(0));
	  x->mute = 0;
	  x->set_count = 0;
	  x->external_trigger = 0;
	  if( x->density < 0.0 ){
	    x->density = 0;
	  } else if( x->density > 1.0 ){
	    x->density = 1.0;
	  }
	  x->start_breakpoint = 1.0 - x->density;
	  
	  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->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_out = (float *) calloc( MAX_N2+1, sizeof(float) );
	  
	  x->c_factor_out = TWOPI * (float)  x->D / (float) x->R;
	  x->rule = (short *)  calloc(8, sizeof(short));

	  x->rule[2] = x->rule[3] = x->rule[5] = x->rule[6] = 1;
	  x->rule[0] = x->rule[1] = x->rule[4] = x->rule[7] = 0;

	} 
		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_out,0,(x->N2+1) * sizeof(float));
		memset((char *)x->last_frame,0,(x->N+2) * sizeof(float));

  init_rdft( x->N, x->bitshuffle, x->trigland);
  makehanning( x->Hwin, x->Wanal, x->Wsyn, x->Nw, x->N, x->D, 0);

  for(i = 0; i < x->N2 + 1; i++){
    if(cavoc_randf(0.0, 1.0) > x->start_breakpoint){
      x->channel[ i * 2 ] = 1;
      ++(x->set_count);
    } else {
      x->channel[i * 2] = 0;
    }
    x->channel[i * 2 + 1] = x->c_fundamental * (float) (i / 2) * cavoc_randf(.9,1.1);
  }

//  post("turned on %d of a possible %d bins", x->set_count, x->N2+1 );
  
  for( i = 0; i < x->N+2; i++ ){
    x->last_frame[i] = x->channel[i];
  }
//  post("cavoc~ FFT size: %d",x->N);
}