Vocoder Use

[GrooveNinja]

Does anyone know how to use the vocoder on the Virus TI to actually make an interesting sound? Is there a reference somewhere on what a vocoder does and how it works? I played around with all of the vocoder related settings, but all I could get from it was either really horrible, screechy noise or a bad sounding PA. I could hear how the microphone input sort of gated the selected patch, but that wasn't very interesting. Isn't this supposed to be the tool to make cool sounding space and robot vocal type sounds?