How to Model Crowd Behavior

We try to bring it down as authentic as possible but then we have to go beyond because normally you would not hear the details of the sound on the pitch on TV. For this last South African World Cup, we hired people in South Africa to record the crowds. We actually had the crowds come back from South Africa and I kept hearing the speed hives going on. This is driving me bonkers. Can we not turn that thing off or down? You guys know this is this vuvuzela thing, it's part of the thing that you have to have this or it's not authentic. So we actually put a mute button on finally to say that you can mute it or lower