air pressure in relation to decibels
anyone know the atmospheric pressure (bar, millibar) scale in relation to decibels?
eg; say for example 140 db's, how much air pressure would this be?
i want to try and make an spl meter, using pressure/tremor sensors...i have access to the parts, but just have to know which sensor to use, so i can calibrate as best i can.
if anyone has a link to this info, that would be most excellent.
any help appreciated.
thanx, i'll take a lok at that link you gave me... :)
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