They arent - its just a cooincidence that they look like soundproofing materials called 'eggcrate'.
If I am trying to build a soundproof room, I would use foam and egg cartons for materials.
go ahead and crack a few eggs and your trunk and see what happends
There is much controversy about whether using real egg cartons on the walls will soundproof a room. Garage bands with little money insist that this cheap form of soundproofing does Answers.com. There is soundproofing egg carton foam that is made and can be purchased in sheets to insulate walls--this method is definitely more effective than using the actual cardboard egg cartons. It is also more costly. If you need to soundproof a room for little to no money, you might as well try the egg carton method yourself--it can't be worse than bare walls. Once installed, see if the resulting soundproofing is myth or fact.
well this actually works to a point.get as many egg cartons as you can and line your walls with them with the points facing outward
Soundproof - album - was created on 2010-07-09.
Guppies are livebearers, And they don't lay eggs.
The cast of Soundproof - 2009 includes: Rocco Guiliano as himself
There are many cheap ways to soundproof your designated area. One can soundproof a designated area by hiring a building surveyor so they can install the necessary insulation.
I'm not a lawyer, but if my downstairs neighbor asked me to soundproof my floor I might suggest that she soundproof her ceiling.
Not by itself.
Soundproof - 2006 TV is rated/received certificates of: Netherlands:12
bECAUSE IT IS SAD