1 files changed, 98 insertions, 0 deletions
diff --git a/hssc~/hssc~.c b/hssc~/hssc~.c
new file mode 100644
index 0000000..f62ad9d
--- /dev/null
+++ b/hssc~/hssc~.c
@@ -0,0 +1,98 @@
+/*
+ *  hssc~ : Highest Significant Spectral Component, according to amplitude ratio to
+ *  Strongest Significant Spectral Component. 
+ *  Copyright (C) 2005 Edward Kelly <morph_2016@yahoo.co.uk>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include "m_pd.h"
+#include <math.h>
+
+static t_class *hssc_tilde_class;
+
+typedef struct _hssc_tilde 
+{
+  t_object x_obj;
+  t_float f;
+  t_float f_maxbin, f_minbin, f_ratio;
+  t_outlet *f_hssc, *f_sssc;
+} t_hssc_tilde;
+
+t_int *hssc_tilde_perform(t_int *w)
+{
+  t_hssc_tilde *x = (t_hssc_tilde *)(w[1]);
+  t_sample  *real =     (t_sample *)(w[2]);
+  t_sample  *imag =     (t_sample *)(w[3]);
+  int           n =            (int)(w[4]);
+  int incr = 0;
+  double vectorr, vectori;
+  double max = 0;
+  double alpha;
+  x->f_maxbin = x->f_minbin = 0;
+  x->f_ratio = x->f_ratio > 0 ? x->f_ratio : 100;
+
+  while (n--)
+    {
+      vectorr = (*real++);
+	  vectori = (*imag++);
+	  alpha = sqrt((vectorr * vectorr) + (vectori * vectori));
+      x->f_maxbin = alpha > max ? incr : x->f_maxbin;
+      max = alpha > max ? alpha : max;
+      x->f_minbin = alpha > (max / x->f_ratio) ? incr : x->f_minbin;
+      incr++;
+    }
+  outlet_float(x->f_sssc, x->f_maxbin);	
+  outlet_float(x->f_hssc, x->f_minbin);
+  
+  return(w+5);
+}
+
+void hssc_tilde_dsp(t_hssc_tilde *x, t_signal **sp)
+{
+  dsp_add(hssc_tilde_perform, 4, x,
+	  sp[0]->s_vec, sp[1]->s_vec, sp[0]->s_n);
+}
+
+void *hssc_tilde_new(t_floatarg f)
+{
+  t_hssc_tilde *x = (t_hssc_tilde *)pd_new(hssc_tilde_class);
+
+  x->f_ratio = f;
+
+  inlet_new (&x->x_obj, &x->x_obj.ob_pd, &s_signal, &s_signal);
+  floatinlet_new (&x->x_obj, &x->f_ratio);
+  x->f_hssc = outlet_new(&x->x_obj, gensym("float"));
+  x->f_sssc = outlet_new(&x->x_obj, gensym("float"));
+
+  return (void *)x;
+}
+
+
+void hssc_tilde_setup(void)
+{
+  hssc_tilde_class = class_new(gensym("hssc~"),
+				     (t_newmethod)hssc_tilde_new,
+				     0, sizeof(t_hssc_tilde),
+				     CLASS_DEFAULT, A_DEFFLOAT, 0);
+
+  post("|=================hssc~==================|");
+  post("|=highest significant spectral component=|");
+  post("|======edward=======kelly=======2005=====|");
+
+  class_addmethod(hssc_tilde_class, (t_method)hssc_tilde_dsp,
+		  gensym("dsp"), 0);
+  class_sethelpsymbol(hssc_tilde_class, gensym("help-hssc~"));
+  CLASS_MAINSIGNALIN(hssc_tilde_class, t_hssc_tilde, f);
+}