While the trichromatic theory defines the way the retina of the eye allows the visual system to detect color with three types of cones, the opponent process theory accounts for mechanisms that receive and process information from cones.
Cost of Soundproofing One Room. The cost to soundproof one room generally includes $170 to $250 for new materials, $190 to $300 for professional labor and $20 to $36 in tools needed to complete the job, though the prices will be higher for larger rooms and more complicated projects.
For example, the homeowner converting a large living area into a home theater will usually hire a contractor to enhance exterior walls with framing, a bottom plate, and alternating studs that provide an excellent sound barrier. This is something that would cost $40 to $50 per hour in labor expenses alone.For the purpose of this discussion we will consider the options and estimated costs for soundproofing a single room in the home. Windows-if the windows in the home are out of date and not well sealed they will allow a great deal of sound to enter the room. 2  This might be through exterior noise or through air flow around the seals and either way it will be a good idea to also replace them in order to create a soundproof environment.