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Rm11 people the answer is not here by Andrew :p
Usually very dense. sound cancelling material in the walls or coating the inside of the wall of the "soundproof" room. Also see Acoustic Foam.
due to the echo. it has different wave lengths fo can not be hear clearly.
Yes, black blinds will keep heat in a room when it's cold outside and keep a room cool when it's hot outside.
Yes, the molecules are able to vibrate, thus relaying the sound vibrations through a solid mass. When we hear sounds through a wall we prove this concept. The sound vibrates the air outside the room then the wall and then the air inside the room and finally our eardrum which is also a solid.
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.
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.
There were leven people in that room.
the room lit up with people talking but yet you can hear food dropping!
Rm11 people the answer is not here by Andrew :p
I am about to reveal one of my most innermost secrets to you. You will find that the innermost room is soundproof.
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
Well only if you are a spirit or a ghost. In order for you to talk you have to breathe. And in order for you to breathe you have to have air. So, no if there is no air in the room people cannot hear a word you are saying.