Threshold of hearing

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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)

Wikipedia (http://en.wikipedia.org/wiki/Main_Page) Threshold_of_hearing (http://en.wikipedia.org/wiki/Threshold_of_hearing) version history (http://en.wikipedia.org/w/index.php?title=Threshold_of_hearing&action=history) GNU Free Documentation Lizenz (http://en.wikipedia.org/wiki/Wikipedia:Text_of_the_GNU_Free_Documentation_License) CC-by-sa (http://creativecommons.org/licenses/by-sa/2.5/)

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