public static void RubberBandStretcher_SetPitchScale(IntPtr rbs, double scale)
 {
     if (IntPtr.Size == 8)
     {
         RubberBandNativeMethodsx64.RubberBandStretcher_SetPitchScale(rbs, scale);
     }
     else
     {
         RubberBandNativeMethodsWin32.RubberBandStretcher_SetPitchScale(rbs, scale);
     }
 }