How Can I Make a Room Soundproof?
Basically you’d need to install some sound-absorbing foam and various other stuff to insulate the room and help keep inside sounds in and outside sounds out. Here’s a helpful link describing how a family converts their master bedroom into a soundproof room for music production. http://www.diynetwork.com/diy/shows_dhtr/episode/0,,diy_19141_42465,00.
Start by checking the areas around the windows, doors, and electrical outlets. Are they properly sealed? If not, you’ll need to get some acoustical caulk like quietseal and fill in the cracks.
Are your doors hollow or solid? Try replacing hollow doors with stronger, solid doors to help block sound and seal all the gaps with Weatherstrips.
Finally, you’ll use a series of techniques to add damping compound and drywall or quietrock to the walls and ceilings. Apply the damping compound to your existing surface (as it is), screw the new drywall over top, and fill in the seams with acoustical caulk and repaint.
http://www.ehow.com/how_15992_soundproof-room.html
Even if one isn’t building a recording studio, there are times when a home or business owner will want to reduce the amount of sound coming into, or out of, a room. While many methods are available, choosing one will depend on the room itself and the amount of money the owner is willing to spend. To understand how to soundproof a room, it is first necessary to understand a little about “sound.” Sound is composed of waves that travel through a medium. Some mediums, or materials, are more resistant to sound than others. Air, for example, offers little resistance and is therefore a major contributor to unwanted noise in a room. To soundproof a room, however, more is needed than just blocking the flow of sound through air. Another source of unwanted noise in a room can come from vibrations. A vibration occurs when a sound wave travels back and forth from one object to another. This can happen, for example, when a sound wave strikes one wall in a room, bounces off that wall, and transfers i
