Dude completes Dark Souls using voice commands

Check out the link and video here. As someone who has yet to beat the game, I do not understand how this is possible. It’s all about timing in the Souls games. How the hell do you deal with the delay from the voice recognition software? At the link is a video of his fight against Ornstein and Smough, which is generally considered the most difficult in Dark Souls. I know I died about 30 times fighting those bastards. I tried everything. Every possible armor configuration. Going in near naked t...