My question is, is he doing it on purpose, or is that his actual voice now? I mean, it's like a low-pitched voice and it's like the angry kinda tone is coming from deep within...I can't explain it

Anyway, is that how is voice is now? Can't he have this mellow voice if he wants now?
http://www.youtube.com/watch?v=mXQliaF9LXE
And when he got mad in that^, it sounded like the anger was on TOP of the voice, but this new anger in his newer songs is like it's lying in the bottom...oh gosh, can't explain it...some of you will get it, though.
(BTW I'M NOT CRITICIZING IT, I HAPPEN TO KIND OF LIKE IT.)