* More work on framing, interpolation and scaling for longer window than FFT size.

This adds the --smoothing option to the command line tool and SmoothingOn/Off
  options to the API, introducing a double-length window with presum FFT and
  time-domain smoothing.  Behaviour elsewhere _should_ be unchanged.

rubberband/rubberband-c.h

@@ -63,6 +63,9 @@ enum RubberBandOption {
     RubberBandOptionWindowShort          = 0x00100000,
     RubberBandOptionWindowLong           = 0x00200000,
 
+    RubberBandOptionSmoothingOff         = 0x00000000,
+    RubberBandOptionSmoothingOn          = 0x00800000,
+
     RubberBandOptionFormantShifted       = 0x00000000,
     RubberBandOptionFormantPreserved     = 0x01000000,