Version 3.2

projects/effects/Echo.cpp

@@ -0,0 +1,44 @@
+/******************************************/  
+/*  Echo Effect                           */
+/*  by Perry Cook, 1996                   */
+/******************************************/
+
+#include "Echo.h"
+
+Echo :: Echo(MY_FLOAT longestDelay)
+{
+  length = (long) longestDelay + 2;
+  delayLine = new DLineN(length);
+  effectMix = 0.5;
+  this->clear();
+  this->setDelay(longestDelay);
+}
+
+Echo :: ~Echo()
+{
+  delete delayLine;
+}
+
+void Echo :: clear()
+{
+  delayLine->clear();
+  lastOut = 0.0;
+}
+
+void Echo :: setDelay(MY_FLOAT delay)
+{
+  delayLine->setDelay(delay);
+}
+
+void Echo :: setEffectMix(MY_FLOAT mix)
+{
+  effectMix = mix;
+}
+
+MY_FLOAT Echo :: tick(MY_FLOAT input)
+{
+  lastOut = effectMix * delayLine->tick(input);
+  lastOut += input * (1.0 - effectMix);
+  return lastOut;
+}
+