1 files changed, 1 insertions, 92 deletions

diff --git a/apps/plugins/pdbox/PDa/extra/lowshelf.c b/apps/plugins/pdbox/PDa/extra/lowshelf.c
index 52c30d839d..ba32b6dba8 100644
--- a/apps/plugins/pdbox/PDa/extra/lowshelf.c
+++ b/apps/plugins/pdbox/PDa/extra/lowshelf.c
@@ -88,95 +88,4 @@ void lowshelf_setup(void)
     class_addfloat(lowshelf_class,lowshelf_float);

 }

 

-

-/* (C) Guenter Geiger <geiger@epy.co.at> */

-

-

-/*

-

- These filter coefficients computations are taken from

- http://www.harmony-central.com/Computer/Programming/Audio-EQ-Cookbook.txt  

-

- written by Robert Bristow-Johnson

-

-*/

-

-#include "m_pd.h"

-#ifdef NT

-#pragma warning( disable : 4244 )

-#pragma warning( disable : 4305 )

-#endif

-#include <math.h>

-#include "filters.h"

-

-

-

-/* ------------------- lowshelf ----------------------------*/

-

-static t_class *lowshelf_class;

-

-void lowshelf_bang(t_rbjfilter *x)

-{

-     t_atom at[5];

-     t_float omega = e_omega(x->x_freq,x->x_rate);

-     t_float A = e_A(x->x_gain);

-     t_float cs = cos(omega);

-     t_float sn = sin(omega);

-     t_float beta = e_beta(A,x->x_bw*0.01);

-

-     t_float b0 =    A*((A+1) - (A-1)*cs + beta*sn);

-     t_float b1 = 2.*A*((A-1) - (A+1)*cs);

-     t_float b2 =    A*((A+1) - (A-1)*cs - beta*sn);

-     t_float a0 =      ((A+1) + (A-1)*cs + beta*sn);

-     t_float a1 =  -2.*((A-1) + (A+1)*cs);

-     t_float a2 =      ((A+1) + (A-1)*cs - beta*sn);

-

-/*     post("bang %f %f %f",x->x_freq, x->x_gain, x->x_bw); */

-     

-     if (!check_stability(-a1/a0,-a2/a0,b0/a0,b1/a0,b2/a0)) {

-       post("lowshelf: filter unstable -> resetting");

-       a0=1.;a1=0.;a2=0.;

-       b0=1.;b1=0.;b2=0.;

-     }

-

-     SETFLOAT(at,-a1/a0);

-     SETFLOAT(at+1,-a2/a0);

-     SETFLOAT(at+2,b0/a0);

-     SETFLOAT(at+3,b1/a0);

-     SETFLOAT(at+4,b2/a0);

-     

-     outlet_list(x->x_obj.ob_outlet,&s_list,5,at);

-}

-

-

-void lowshelf_float(t_rbjfilter *x,t_floatarg f)

-{

-     x->x_freq = f;

-     lowshelf_bang(x);

-}

-

-

-static void *lowshelf_new(t_floatarg f,t_floatarg g,t_floatarg bw)

-{

-    t_rbjfilter *x = (t_rbjfilter *)pd_new(lowshelf_class);

-

-    x->x_rate = 44100.0;

-    outlet_new(&x->x_obj,&s_float);

-    floatinlet_new(&x->x_obj, &x->x_gain);    

-    floatinlet_new(&x->x_obj, &x->x_bw);

-    if (f > 0.) x->x_freq = f;

-    if (bw > 0.) x->x_bw = bw;

-    if (g != 0.) x->x_gain = g;

-    return (x);

-}

-

-

-void lowshelf_setup(void)

-{

-    lowshelf_class = class_new(gensym("lowshelf"), (t_newmethod)lowshelf_new, 0,

-                                sizeof(t_rbjfilter), 0,A_DEFFLOAT,A_DEFFLOAT,A_DEFFLOAT,0);

-    class_addbang(lowshelf_class,lowshelf_bang);

-    class_addfloat(lowshelf_class,lowshelf_float);

-}

-

-

+