public RubberBandStretcher(int sampleRate, int channels, Options options = DefaultOptions, double initialTimeRatio = 1.0, double initialPitchScale = 1.0)
{
_rbs = RubberBandNativeMethods.RubberBandStretcher_Create(new IntPtr(sampleRate), new IntPtr(channels), (int)options, initialTimeRatio, initialPitchScale);
}