The closer you sit to the field, the less you will be able to hear the PA system. Cover your ears before 3rd down if you don’t like loud noises as they blare the train horn. Like I said, you’ll barely be able to hear it when you’re close to the field
Don’t sit in the family section in the 200s as you’ll be right next to a stadium speaker
during the national anthem they blast off fireworks and some loud bangs.