THRESHOLD OF PAIN

In hearing, the 'threshold of pain' is the sound pressure or sound pressure level beyond which sound becomes unbearable for a human listener. This threshold varies only slightly with frequency.
Different values for the threshold of pain are found in the literature:

'Threshold of pain'
sound pressure level	sound pressure
120 dBSPL	'20 Pa'
130 dBSPL	63 Pa
134 dBSPL	'100 Pa'
'137.5 dBSPL'	150 Pa
140 dBSPL	200 Pa

The volume in acoustics refers to loudness. It is a common term for the amplitude of sound, the sound pressure or the sound pressure level.
Prolonged exposure to sound pressure levels in excess of the threshold of pain can cause physical damage, potentially leading to hearing impairment.

Contents

See also

See also

★ Threshold of hearing

★ Sone

★ Loudness

★ Phon

★ Volume

★ DB(A)