Adding an effect to voice Final Cut Pro X

Hi Guys,

I'm having trouble with an effect I want to put into my video.

A guy is shouting something and I've slowed it down, but I want to make his voice really deep. I've gone through all the audio generators (But not the settings within the generators).

Does anyone know how to do this?

Thanks in advance x

I'm looking for that sort of classic, deep rumbling slow-mo voice that's used in so many Hollywood movies x

If you can find someone locally who has such a voice, that's obviously the best move. Find a voice as close as possible, to start. Then you can use the Pitch Shifter II audio filter to see what you can do. Just remember that pushing pitch too far will sound fake. I'd throw some EQ on top of that to fatten it up. Shifting pitch is fine, but you need to EQ to match the dynamics that different voice should have.