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{{#invoke:redirect hatnote|redirect}} The sone is a unit of how loud a sound is perceived. The sone scale is linear. Doubling the perceived loudness doubles the sone value. Proposed by Stanley Smith Stevens in 1936, it is a non-SI unit.

In acoustics, loudness is the subjective perception of sound pressure. The study of apparent loudness is included in the topic of psychoacoustics and employs methods of psychophysics.


Sone sections
Intro  Examples of sound pressure, sound pressure levels and loudness in sone  Formulae  See also  References  External links  

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