FaceTime Audio Too Loud

Everytime I join FaceTime calls, whether it be me and my brother or a group of friends, the audio is always loud for absolutely no reason. Even on the lowest setting, it still finds a way to be louder than a child screaming at the playground and it’s so aggravating. Is there anyway to fix this??? How am I supposed to have late night FaceTimes while my dad is sleeping if the audio is always blaring like it’s on the loudest setting?? I use an IPhone 11, but I’ve heard of it happening for many old (and more recent) phones as well.