Noise and Health
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Tinnitus is not itself a disease but a symptom resulting from a range of underlying
causes, including ear infections, foreign objects or wax in the ear, and injury from
loud noises. Tinnitus is also a side-
The sound perceived may range from a quiet background noise to a signal loud enough
to drown out all outside sounds. The term "tinnitus" usually refers to more severe
cases. Heller and Bergman (1953) conducted a study of 80 tinnitus-
Because tinnitus is often defined as a subjective phenomenon, it is difficult to measure using objective tests, such as by comparison to noise of known frequency and intensity, as in an audiometric test. The condition is often rated clinically on a simple scale from "slight" to "catastrophic" according to the practical difficulties it imposes, such as interference with sleep, quiet activities, or normal daily activities.
Source: Wikipedia
Tinnitus from the Latin word for "ringing” is the perception of sound in the human ear in the absence of corresponding external sound(s).
Tinnitus can be perceived in one or both ears or in the head. It is usually described as a ringing noise, but in some patients it takes the form of a high pitched whining, buzzing, hissing, humming, or whistling sound, or as ticking, clicking, roaring, "crickets" or "locusts", tunes, songs, or beeping. It has also been described as a "whooshing" sound, as of wind or waves.