Version 3.2

include/OnePole.h

@@ -0,0 +1,44 @@
+/*******************************************/
+/*
+   One Pole Filter Class,
+   by Perry R. Cook, 1995-96.
+   Added methods by Julius Smith, 2000.
+
+   The parameter gain is an additional
+   gain parameter applied to the filter
+   on top of the normalization that takes
+   place automatically.  So the net max
+   gain through the system equals the
+   value of gain.  sgain is the combina-
+   tion of gain and the normalization
+   parameter, so if you set the poleCoeff
+   to alpha, sgain is always set to
+   gain * (1.0 - fabs(alpha)).
+*/
+/*******************************************/
+
+#if !defined(__OnePole_h)
+#define __OnePole_h
+
+#include "Filter.h"
+
+class OnePole : public Filter
+{
+protected:  
+  MY_FLOAT poleCoeff;
+  MY_FLOAT sgain;
+public:
+  OnePole();
+  OnePole(MY_FLOAT thePole);
+  ~OnePole();
+  void clear();
+  void setB0(MY_FLOAT aValue);   /* set numerator b0 in b0/(1+a1/z) */
+  void setNum(MY_FLOAT *values);
+  void setA1(MY_FLOAT aValue);   /* set denominator a1 in b0/(1+a1/z) */
+  void setDen(MY_FLOAT *values);
+  void setPole(MY_FLOAT aValue);
+  void setGain(MY_FLOAT aValue);
+  MY_FLOAT tick(MY_FLOAT sample);
+};
+
+#endif