Import nyquist_3.05.orig.tar.gz

[dgit import orig nyquist_3.05.orig.tar.gz]

1 files changed, 52 insertions, 0 deletions

diff --git a/nyqstk/include/PitShift.h b/nyqstk/include/PitShift.h
new file mode 100644
index 0000000..775b8e2
--- /dev/null
+++ b/nyqstk/include/PitShift.h
@@ -0,0 +1,52 @@
+/***************************************************/
+/*! \class PitShift
+    \brief STK simple pitch shifter effect class.
+
+    This class implements a simple pitch shifter
+    using delay lines.
+
+    by Perry R. Cook and Gary P. Scavone, 1995 - 2005.
+*/
+/***************************************************/
+
+#ifndef STK_PITSHIFT_H
+#define STK_PITSHIFT_H
+
+#include "Effect.h" 
+#include "DelayL.h" 
+
+namespace Nyq
+{
+
+class PitShift : public Effect
+{
+ public:
+  //! Class constructor.
+  PitShift();
+
+  //! Class destructor.
+  ~PitShift();
+
+  //! Reset and clear all internal state.
+  void clear();
+
+  //! Set the pitch shift factor (1.0 produces no shift).
+  void setShift(StkFloat shift);
+
+ protected:
+
+  StkFloat computeSample( StkFloat input );
+
+  DelayL delayLine_[2];
+  StkFloat delay_[2];
+  StkFloat env_[2];
+  StkFloat rate_;
+  unsigned long delayLength;
+  unsigned long halfLength;
+
+};
+
+} // namespace Nyq
+
+#endif
+