The speakers in the stadium should have no impact on the game. By rule, artificial noise (loudspeakers, bands) are allowed, but . . .
"Artificial crowd noise, by conference policy or mutual consent of the institutions, is allowed. The noise level must be consistent throughout the game for both teams. However, all current rules remain in effect dealing with bands, music and other sounds. When the snap is imminent, the band/music must stop playing. As with all administrative rules, the referee may stop the game and direct game management to adjust."