Hey - just started the game and it looks great, the music is great, but the voices...have issues. No, this isn't a "WHERE IS BILL FARMER" post - the acting sounds perfectly fine - it's the actual sound quality that's the problem. Namely, there's a lot of distortion - Max sounds like he's got an enormous lisp, created by all this hissing when he talks - and Sam sounds like a robot - like his voice is coming from some deep metallic chamber. Sorry I can't give a more technical description but I'm no audio engineer. I have no idea what could be causing this. I'm using a Soundblaster X-Fi, and am running it in entertainment mode, using headphones, but I don't have any fancy features turned on - no EAX, no CMSS-3D, no 24-bit crystalizer, nothing that should interfere or alter the game's sounds.
I can confidently say this isn't just me mishearing the intended voice acting, as I know they didn't sound like this in the trailer or anything.