My 15 year old son has an exceptionally loud voice. He spends quite a lot of time in his room gaming and chatting with his friends while he's doing it. He sometimes shouts/screams and I have recently started to come down harder on that and tell him that if he does that, he'll be kicked off. But the problem is that his voice is incredibly loud even when he's not shouting. His laugh is extremely loud and piercing and I can hear him non-stop in every room of the house. He's always had a very loud voice and talks non-stop. I can't get away from the incessant noise and it's starting to really get to me. I can't exactly punish him for talking and laughing with his friends. Any ideas for deadening the sound?