Auditory fatigue
Temporary or permanent loss of hearing due to exposure to sound / From Wikipedia, the free encyclopedia
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Auditory fatigue is defined as a temporary loss of hearing after exposure to sound. This results in a temporary shift of the auditory threshold known as a temporary threshold shift (TTS). The damage can become permanent (permanent threshold shift, PTS) if sufficient recovery time is not allowed before continued sound exposure.[1] When the hearing loss is rooted from a traumatic occurrence, it may be classified as noise-induced hearing loss, or NIHL.
There are two main types of auditory fatigue, short-term and long-term.[2] These are distinguished from each other by several characteristics listed individually below.
Short-term fatigue
- full recovery from TTS can be achieved in approximately two minutes
- the TTS is relatively independent of exposure duration[2][3]
- TTS is maximal at the exposure frequency of the sound
Long-term fatigue