public void Begin(IScriptableApp app) {



    //start MODIFY HERE -----------------------------------

    int uiSampleRate  = GETARG("SampleRate", 8000);

    string szFileName = GETARG("FileName", "output");



    // GETARG is a function that defines the default script settings. You can use the Script Args field to over-ride

    // the values within GETARG().

    // Example: To over-ride GETARG(Key, valueA), type Key=valueB in the Script Args field.

    //          Use an ampersand (&) to separate different Script Args: KeyOne=valueB&KeyTwo=valueC



    //Example Script Args: Files=1&fx=FM Synthesis



    //end MODIFY HERE -----------------------------------



    // specify 8 bit, 1 channel, at the user specified sample rate

    SfWaveFormat format = new SfWaveFormat(SfSampleType.Wav8, (uint)uiSampleRate, 1);



    // create a new audio file (no user interaction required)

    ISfFileHost file = app.NewFile(format, false);



    // obtain a pointer to the "Simple Synthesis" effect

    ISfGenericEffect effect = app.FindEffect("Simple Synthesis");



    // if an error occurred finding the effect

    if (null == effect) {

        DPF("ERROR: unable to find the \"Simple Synthesis\" effect");

        return;

    }

    

    // Waveform shape:          Sine

    // Length:                  1.667 seconds

    // Start Frequency:         1,295 Hz

    // End Frequency:           545 Hz

    // Amplitude:               0 dB

    // Log Sweep:               No

    // Insert new waveform at:  End of file



    // TODO: setting for the effect



    // generate the sine wave

    file.DoEffect(effect.Name, preset, null, EffectOptions.EffectOnly);



    // if an error occurred creating the sine wave

    if (SfStatus.Success != file.WaitForDoneOrCancel()) {

        DPF("ERROR: unable to create the sine wave");

        return;

    }



    // TODO: save to file



    return;

}