of Montreal Kevin Barnes Vocoding/Effect Help?

[mfrazer1989]

I know how to use the vocoder in Ableton, but I need something that sounds like this:

http://www.youtube.com/watch?v=cMjo9wI3iiM (at 3:40 and at the end of the song)

It doesn't seem to be simple vocoding but rather a series of effects. Any tips? Thanks in advance.