- a unit for measuring the apparent loudness of a sound, equal in number for a given sound to the intensity in decibels of a sound having a frequency of 1000 cycles per second when, in the judgment of a group of listeners, the two sounds are of equal loudness.
Origin of phon
- variant of phono- before a vowel: phonic.
Examples from the Web for phon
Historical Examples of phon
Steve might threaten what he liked, but jump Phon would not.
They say you go gamble, Chance he go gamble, Phon he go gamble too.
All right, Phon, I'll not leave you behind, even if I have to pack you on my own shoulders.
Phon had been driven ahead of Steve, as Corbett and Steve had arranged.
To Steve and Phon this yellow table-land was the region of fairy gold.
- a unit of loudness that measures the intensity of a sound by the number of decibels it is above a reference tone having a frequency of 1000 hertz and a root-mean-square sound pressure of 20 × 10 –6 pascal
Word Origin for phon
- Also: phonet phonetics
- Variant ofphono-
- A unit of apparent loudness. The loudness of a signal in phons is equal to the intensity in decibels of a 1,000-hertz tone judged to be as loud as the signal being measured.