Sones phons loudness decibel sone 0.2 - 0.3 - 0.4 - 0.5 - 0.6 define sone rating conversion dB level
The loudness of N = 1 sone is equivalent to 40 phons, which is the loudness level of L N = 40 dB of a sine wave (sinusoid) with a frequency of f = 1000 Hz. Kurt Tucholsky: "Noise is the noise of others and one's dog makes no noise." "There are many kinds ...