The sone specifically measures perceived loudness — it’s scaled so that doubling the sone value corresponds to a sound judged twice as loud by listeners. The phon, by contrast, measures loudness level referenced against a standard tone.
The sone specifically measures perceived loudness — it’s scaled so that doubling the sone value corresponds to a sound judged twice as loud by listeners. The phon, by contrast, measures loudness level referenced against a standard tone.
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