Kerouac
weird musical dildo
I can give you a bit of an answer to that.
Auralex won't do a thing to keep sound from escaping the room. What it will do is keep nasty echos and standing waves from happening within the room.
To keep sound from escaping a room, what you really need is isolation. IE, build a room within a room. It's a very expensive undertaking. Basically, you don't want the floor, walls, or ceiling of the interior room to be directly coupled to the outside floor, walls, or ceiling. The cost of doing this is prohibitive to most home recorders, so the best bet is to use lots of insulation and a heavy material like drywall on the walls and ceiling.
Of course, in my home studio, I've got lots of insulation, and drywall, and you can still hear me pretty well from the outside. Good thing my neighbors are A. Not close by, and B. Very understanding.
My closest neighbor is an older dutch lady who says she grew up in an apartment over a bar in Holland, so hearing the noise from my house helps her sleep.
THIS.
I swear, I get asked how to soundproof a room all the time.