A type of assistive listening device that consists of a coil of wire laid around a room and hooked to an audio devices such as a television or public address system. The coil creates a magnetic field that transmits sound to people with hearing aids and telecoils who are sitting inside the loop. They hear […]

A graphic representation of a person’s hearing loss. More technically, a graph of a person’s hearing threshold levels (in decibels) plotted on a chart to show the softest sound a person can detect at various frequencies (typically between 250 and 8,000 Hz) from low pitch (left side) to high pitch (right side).

Same as T-coil and telecoil. (see Telecoil.)

To decrease the amplitude (loudness) or energy of a signal.

Absence or malformation of the outer or middle ear. For example, there may be no pinna or ear canal.

Impaired coordination that typically reveals itself in a staggering gait. Gait ataxia is one of the results of a damaged vestibular (balance) system. It can be result from taking ototoxic drugs.