phon
[ fon ]
/ fɒn /
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noun
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.
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Origin of phon
First recorded in 1930–35, phon is from the Greek word phōnḗ voice
Other definitions for phon (2 of 3)
Other definitions for phon (3 of 3)
phon.
abbreviation
phonetics.
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How to use phon in a sentence
British Dictionary definitions for phon (1 of 2)
phon
/ (fɒn) /
noun
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
C20: via German from Greek phōnē sound, voice
British Dictionary definitions for phon (2 of 2)
phon.
abbreviation for
Also: phonet phonetics
phonology
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Scientific definitions for phon
phon
[ fŏn ]
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.
The American Heritage® Science Dictionary
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