Threshold of hearing

This article or section should be merged with Absolute threshold of hearing.

Threshold of hearing is the sound pressure level SPL of 20 µPa (micropascals) = 2 × 10^-5 pascal (Pa). This low threshold of amplitude (strength or sound pressure level) is frequency dependent. See the frequency curve at absolute threshold of hearing.

See also

• Threshold of pain
• Sone
• Loudness
• Phon
• Volume
• DB(A)