public static void RubberBandStretcher_SetFormantOption(IntPtr rbs, int options)
 {
     if (IntPtr.Size == 8)
     {
         RubberBandNativeMethodsx64.RubberBandStretcher_SetFormantOption(rbs, options);
     }
     else
     {
         RubberBandNativeMethodsWin32.RubberBandStretcher_SetFormantOption(rbs, options);
     }
 }