Any impairment of hearing involving difficulty in processing the details of sound as opposed to any loss of sensitivity to sound. Also refers to any pain or discomfort in the ear from exposure to sound.

The range of loudness between the softest sound that a person can hear and the loudest sound they can stand (Uncomfortable Loudness Level). Hearing aids should be adjusted to keep all sounds within this range—although this is not always possible if you have a severely-collapsed dynamic range. The normal dynamic range is about 120 dB, […]

See Digital Signal Processing.

See Desired Sensation Level.

A sudden case of acute vertigo such that the person loses their balance and drops to the ground as though they had been hit by a sledgehammer. Some people with severe Meniere’s disease experience drop attacks from time to time.

An inherited condition in which one parent carries an abnormal dominant gene. More technically, a single gene of the gene pair that produces a physical characteristic (such as hearing loss) without reference to the other gene in the gene pair. Dominant characteristics are passed by only one parent. Thus each child born to a parent […]