Version 0.99

AllPass1.cpp

@@ -0,0 +1,39 @@
+/*******************************************/
+/*  1st order allpass filter.              */ 
+/*  by Perry R. Cook, 1995-96              */ 
+/*  A special case of the one pole         */
+/*  one zero filter.                       */
+/*******************************************/
+
+#include "AllPass1.h"
+
+AllPass1 :: AllPass1()
+{
+    inputs = (MY_FLOAT *) malloc(MY_FLOAT_SIZE);
+    outputs = (MY_FLOAT *) malloc(MY_FLOAT_SIZE);
+    this->clear();
+
+}
+
+AllPass1 :: ~AllPass1()
+{
+    free(inputs);
+    free(outputs);
+}
+
+void AllPass1 :: clear()
+{
+    outputs[0] = 0.0;
+    inputs[0] = 0.0;
+    lastOutput = 0.0;
+}
+
+MY_FLOAT AllPass1 :: tick(MY_FLOAT sample)    
+{
+    outputs[0] = sample - inputs[0] + (0.99 * outputs[0]);
+    inputs[0] = sample;
+    lastOutput = outputs[0];
+    return lastOutput;
+}
+
+