Have a listen to the audio clip and judge for yourself. It's in the middle of the clip
The site supplies
this audio clip from the CBS broadcast for judgement.
Near the end, you notice some repeating reverb coming from the Indianapolis faithful. The background sound then shuts off, and the crowd sounds a whole lot quieter.
It's sort of like a CD skipping. Were fake cheers being piped into the Dome? Or was CBS injecting their own aural effects into the game via a sound studio in New York?
http://www.sportsbybrooks.com/fake-c...nday-14553.php