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.
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.eport Abuse. Depends how much eggs cost where you live. You'll need about 100 egg cartons to cover a room. Let's say a carton of eggs is $1, you'll need about $150. Don't ask be about the math there, I think that my Windows calculator is on the fritz.