phon (f n)n. A unit of apparent loudness, equal in number to the intensity in decibels of a 1,000-hertz tone perceived to be as loud as the sound being measured. [German, from Greek ph  n , sound; see phone1.] |
phon [fɒn]
n
(Mathematics & Measurements / Units) 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
[via German from Greek phōnē sound, voice]
| phon (fn) 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. |
ThesaurusLegend: Synonyms Related Words Antonyms
| Noun | 1. | phon - a unit of subjective loudness sound unit - any acoustic unit of measurement sone - a unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold |
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