Just because of a noise effect?! Are you kidding me?! I personally don't play this game for it's graphics, I play for the tight/responsive controls. For me... it's all about gameplay, graphics come last. So yeah, people need to relax. It's not a bug, it's part of the game's look.
Oh and has anyone else noticed that your shadow disappears now when you go cloaked? Wasn't like that when I first got the game. Nothin' major but I like it. It kinda bugged me a little. Now if they would only fix the pistol silencer bug, it REALLY bothers me.