I would like to create the beast roaring effect from a recorded human voice like in this video (1m46s-1m49s). Is it possible to get a similar result generated from human speech? By which effect can I achieve the desired result?
I have tried to lower pitch, lower playback speed, reversing playback, but it is not even close to what i need. Speech is still recognized, but it shouldn't.
P.S.: I am not a sound designer at all, sorry if the question is dumb.