How to soundproof a room?

Question

I am getting a new home theater system soon and I need a cheap way to soundproof the room. I hear about Acoustic Seals how do they work? And what are other good ways to do this?

Background info, it's a finished basement. 2 small windows 3 air conditioning ducts 4 doors (1 leading upstairs, 1 to a laundry room, 1 to a bathroom, and one to a storage closet). The windows have vertical blinds.

I don't want to really put anything on the walls I was hoping to just line the room with those seals, around the ceiling, doors, floor and windows.

I would prefer to block all the sound from leaving, but the more noise that's blocked from going upstairs and outside, the better.

Answer 1

You could install a curtain rail & hang a heavy curtain around your walls.  It would help deaden the sound from vibrating through your walls, yet allow you to pull back/open when not using your theater.