NOUN | quantity | phon | a unit of subjective loudness |
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Meaning | A unit of subjective loudness. | |
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Parts | sone | A unit of perceived loudness equal to the loudness of a 1000-hertz tone at 40 dB above threshold |
Broader | sound unit | Any acoustic unit of measurement |
Spanish | fonio, phon | |
Catalan | fon, phon |
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