Loudness level contour

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3-1-195

Alternative term: Equivalent loudness contour

A contour on a graph, the co-ordinates of which are the frequency and the sound pressure level, joining all points of equal loudness level (equal equivalent loudness).

Reference: C.E.F.




Please note that this is the term as it stands in the original IALA Dictionary edition (1970-1989)

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Celsius (previously Centigrade)

Capacitance

Illuminance

Energy

force

Farad

Fahrenheit

International Association of Marine Aids to Navigation and Lighthouse Authorities - AISM