Definition of phon in English:

phon

Syllabification: phon
Pronunciation: /fän
 
/

noun

  • A unit of the perceived loudness of sounds.
    More example sentences
    • Coincidentally, one phon is approximately the smallest detectable difference in loudness.
    • The use of the phon as a unit of loudness is an improvement over just quoting the level in decibels.

Origin

1930s: from Greek phōnē 'sound'.

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