Version 4.0

include/Echo.h

@@ -0,0 +1,53 @@
+/***************************************************/
+/*! \class Echo
+    \brief STK echo effect class.
+
+    This class implements a echo effect.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2002.
+*/
+/***************************************************/
+
+#if !defined(__ECHO_H)
+#define __ECHO_H
+
+#include "Stk.h" 
+#include "Delay.h" 
+
+class Echo : public Stk
+{
+ public:
+  //! Class constructor, taking the longest desired delay length.
+  Echo(MY_FLOAT longestDelay);
+
+  //! Class destructor.
+  ~Echo();
+
+  //! Reset and clear all internal state.
+  void clear();
+
+  //! Set the delay line length in samples.
+  void setDelay(MY_FLOAT delay);
+
+  //! Set the mixture of input and processed levels in the output (0.0 = input only, 1.0 = processed only). 
+  void setEffectMix(MY_FLOAT mix);
+
+  //! Return the last output value.
+  MY_FLOAT lastOut() const;
+
+  //! Compute one output sample.
+  MY_FLOAT tick(MY_FLOAT input);
+
+  //! Input \e vectorSize samples to the filter and return an equal number of outputs in \e vector.
+  MY_FLOAT *tick(MY_FLOAT *vector, unsigned int vectorSize);
+
+ protected:  
+  Delay *delayLine;
+  long length;
+  MY_FLOAT lastOutput;
+  MY_FLOAT effectMix;
+
+};
+
+#endif
+