A golf ball is said to be "compressed" when hit by a golf club and makes a characteristic "thwack-hiss" sound coming off of the club when impacted by professional golfers (whose impact conditions have been optimized). My question is, what changes between an amateur golfer's impact and a professional golfers impact to produce these characteristic sounds? I understand this is a complex question with multiple factors (different forces acting on a ball at different speeds) but I am very curious what physics experts would say about this?
Thanks!