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IEVref:801-29-04ID:
Language:enStatus: Standard
Term: sone
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Definition: unit of loudness, equal to the loudness of a pure tone presented frontally as a plane wave of frequency 1 000 Hz and a sound pressure level of 40 dB, re 20 μPa

NOTE – The loudness of a sound that is judged by the listener to be n times that of the 1-sone tone is n sones.


Publication date:1994-07
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