Installing ceramic or porcelain tile is both an art and a science. Tile installers must know the composition of the tiles as well as how to lay them in place attractively. Besides the normal costs of labor and materials, a tile project's costs vary by the type of sub-flooring to be used as a foundation for the tile.
Three things can cause an EMI problem: A signal source creates some kind of noise, there is a transmission path for the noise, and/or there is a receiver sensitive enough to be distorted by the noise, as shown in Figure 1.
Damage to the inner ear from ageing or exposure to loud noise is the most common cause.This condition is often associated with tinnitus (buzzing, ringing or whistling noises in the ears) and distortion, so that a pure tone may be split or jangling.