silencing a home AC unit?

I Agree, My Step Son Jordan is 17 this year and is Special Needs. He don't walk, talk, feed or change himself. I am his Main Caregiver, besides his Mom. I find that when he get agitated or ready to have a seizer. I play Country, Classic Rock or even Reggie/Hawaiian music and it just calms him down, Quickly.
How they say ? Music tames the savage soul and it works wonders for "J"
Just My $.02
Mahalo , C
I was guardian over my cousin that was brain damaged at birth also Cerebral Palsy. never talked,walked, or fed herself, lived in diapers till she died at age 60 May 12 2012. It is no easy task.