My five year old is so loud. All the time. She did have some hearing issues until she was about two and continues to have minor hearing loss which could be a contributing factor (we are getting medical help for that) but there is a substantial amount of time where she is just being LOUD. She has no such thing as an inside voice. I really think it is something she can control (she attends daycare/school and it is an issue occasionally but not consistently) but I don't know how to go about dealing with it. Calmly asking her to quiet down works for about five seconds.