The sone (/ ˈsoʊn /) is a unit of loudness, the subjective perception of sound pressure. The study of perceived loudness is included in the topic of psychoacoustics and employs methods of psychophysics. Doubling the perceived loudness doubles the sone value. Proposed by Stanley Smith Stevens in 1936, it is not an SI unit.

The meaning of SONE is a subjective unit of loudness for an average listener equal to the loudness of a 1000-hertz sound that has an intensity 40 decibels above the listener's own threshold of hearing.

The first thing that you need to know is that sones are a measurement of sound, similar to decibels. The difference between sones and decibels is that sones are linear, meaning that 1.0 sone is exactly half as loud as 2.0 sones, and 2.0 sones is half as loud as 4.0 sones.

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May 23, 2022 · Sones are a measure of loudness itself. Sone values are generally preferred to phon values because sones are a linear scale. If the sone value triples, the perceived loudness triples. This is consistent for the entire frequency range. The phon scale is …

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