A broad category of devices that are designed to help hard of hearing people hear (function) better in specific situations. Many ALDs are used in conjunction with the person’s hearing aids to improve their performance in noisy situations or when the speaker is at a distance from the hard of hearing person. Examples of ALDs […]
Assistive Listening System (ALS)
A system used in rooms and with larger groups to make dialogue accessible. These include FM systems,Infrared systems and Induction loop systems.
Ataxia
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.
Atresia
Absence or malformation of the outer or middle ear. For example, there may be no pinna or ear canal.
Attenuate
To decrease the amplitude (loudness) or energy of a signal.
Audio Coil
Same as T-coil and telecoil. (see Telecoil.)