F. Mason Sones died in 1985.
F. Mason Sones was born in 1918.
Henry F. Mason died in 1927.
Leonard F. Mason died on 1944-07-22.
F. Van Wyck Mason died on 1978-08-28.
in 1782
Allan Sones died on July 12, 1980, in London, England, UK.
Allan Sones's birth name is Allan Thomas Sones.
Henry F. Mason was born in 1860.
You can convert the loudness in sones to the loudness level in phons. 4 sones equals 60 phons. Scroll down to related links and read "Correlation between sones und phons".
Leonard F. Mason was born on 1920-02-22.
50 phons (decibels) is equivalent to 2 sones.
The loudness level at 90 dB for a 4000 Hz tone is 7 sones. Sones are a unit of perceived loudness.