Wait, that's his real voice? There's no distortion or editing done to it?
If so, that's some cool shit. He sounds menacing as fuck
Most of his well-known movies are based on motion capture and his talented voice such as Gollum in Lord of the Rings and The Hobbit, Caesar in Planet of the Apes, and of course Supreme Leader Snoke in Star Wars :)
Andy Serkis is one of the best in this field of entertainment.