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.
1 A single sheet of 4'x8' textured wall paneling suitable for the project would cost roughly $33, and the project would require 504 square feet for the walls along with another 240 square feet for the ceiling, translating to 25 panels or $825;enerally, the typical soundproofing costs will include: 1  Walls and ceiling-according to WiseGeek.com a homeowner could use everything from carpeting to paneling to dampen noise from the outside. 2  They recommend using textured materials in order to further reduce sound transfer.