Definitions for "Phon"
Keywords:  loud, spl, decibels, sone, apparent
a unit of loudness level of sound (apparent, subjective sound level); defined as loudness of 1000 Hz sound at the sound pressure level of 20 ┬ÁPa. See also: sone. loudness sound pressure level linguistics : phonetics noun
The unit of loudness level
a measure of loudness