A unit of measurement for the loudness of sound as perceived by the human ear.
Created in 1936 by acoustician Stanley Smith Stevens, derived from the word 'sound.' It's a modern scientific term designed to quantify subjective human experience.
A sone measures how loud something seems to humans, not its actual physical intensity—this matters because your ear doesn't perceive volume linearly, so scientists had to invent a whole new measurement to describe what we actually hear.
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