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.
Currently, the cost of QuietRock 510 is about $52 per 1/2 thick, 4' x 8' panel at Lowe's. Also from Lowe's, the cost of one sheet of conventional 1/2 thick drywall is $11.00. This means that you can purchase nearly 5 sheets of conventional drywall for the cost of a single sheet of QuietRock #510. Comparing the two products on the basis of STC ratings, soundproof drywall would be the wiser purchase because it allows you to pack in greater sound absorption in a smaller size.