Tennessee Offense Vs Sanford Stadium

Just hypothesizing here..

Heupel said last night that the Vols always use silent count. Even at home. They call in plays using signs. They will sometimes make an audible at the line of scrimmage when they see something they don’t like but more often than not, they snap it as soon as they get lined up. Would it not be equally as important for Georgia’s defense to communicate through the crowd noise given how quickly the Vols snap the ball after getting lined up?