It depends on what material you want to use.
$1 to $5 per square foot of wall space and $300 to $950 each soundproof windows.
This link should help you. See related links
bECAUSE IT IS SAD
There are many places where one can buy materials in an attempt to soundproof a room. These places include, but are not limited to, Lowe's, Ebay, and Amazon.
If I am trying to build a soundproof room, I would use foam and egg cartons for materials.
Maybe just the celing and floor?
It stays in the room and does not leak out into the surrounding areas. If you wanted to diffuse that sound you would use acoustical panels or acoustical baffles in order to absorb the sound from bouncing around the room. A soundproof room means it contains the sound in the room. Acoustical treatment is meant to diffuse and absorb the sound which is in the room.
How much does a room at Virginia Tech cost?
Of course soundproof foam will reduce the noise escaping from the room. If you cover the walls and ceiling there will be very little noise escape through the floor.
How much does room and board cost at Purdue University?
I am about to reveal one of my most innermost secrets to you. You will find that the innermost room is soundproof.
Studio foam and fiberglass panels are meant to minimize the reflected sound in the room to improve the quality of the mix or performance. It is not designed to soundproof the room. The only way to truly soundproof a room is by using special building materials during construction, such as acoustic sheetrock, and isolating the vibration of the walls from external contact. Usually this involves creating a room within the room with an air barrier and isolating joist supports.
to buy a 0 gravity room would cost over millions
it cost 80 per room