Assassin's Creed 1 (PS3)

I got it cheap, I installed it last night, I got the update and I started playing.

There’s a lot of gum flapping going and I’m not hearing any voices. Is this normal? It’s not 100% of the voices, I can hear some people, but not a lot of other NPCs.

Check your sound options, the game’s output is probably set to 5:1 when you have a stereo TV, or vice versa.