Definify.com

Definition 2024

See also: phon-

phon ‎(plural phons)

(acoustics) A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the sound being measured.

a unit of apparent loudness

From German Föhn ‎(“warm and dry wind”).

phon m ‎(invariable)