Sone - 187 Direct

To answer, we must abandon the laboratory. At 40 sones (roughly 70 dB), you are standing next to a running vacuum cleaner. At 80 sones (85 dB), it’s heavy city traffic inside your skull. At 100 sones (90 dB), a shouted conversation becomes a battle.

In the lexicon of psychoacoustics, the sone is a deceptively simple creature. Unlike the decibel—a relative measure of pressure—the sone is linear. One sone is defined as the loudness of a quiet, 1 kHz tone at 40 dB SPL. Two sones sound twice as loud. Forty sones sound forty times as loud. sone - 187

In the end, is not a measurement. It is a warning: You are no longer listening. You are being unmade by vibration. To answer, we must abandon the laboratory

At , the linear scale ceases to be academic and becomes visceral. At 100 sones (90 dB), a shouted conversation