Hey there people of this maginificent community

I have a ''burning'' question for y'all (pun intended, haha)

I'm wondering for quite some time now how Mat Zo did the effect on the vocals in the beginning of his remix of Ellie Goulding's Burn. What I hear is that he uses some kind of robotic effect that is layered upon her voice which is sounding pretty bad ass. But I really can't figure out how to do it. Does anyone maybe know how he did this? Would be great to know the technique, since I can use it in my production then. Not copy it, of course. But use it in my own way. Would mean a lot to me!

Greetings, gc1992