1 From the distance from the center of the earth to the peak of the mountain.  As mountains are generally measured from sea level, Mount Everest 29,035 ft (8,850m) is considered to be king. However, there is a difference between the highest and tallest.
You can buy acoustic ceiling tiles in either 2'x2' or 2'x4' sizes. It will cost about $1,000-$1,700 to install an acoustic ceiling system in an average 12'x14' room. Most contractors will charge between $2 and $5 per square foot for labor. A modest set of 12, 2x2 tiles can cost from $25-$40. There are more extravagant tiles which can cost as much as $100 for a set of 12.
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.