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-   -   air pressure in relation to decibels (http://www.diyaudio.com/forums/parts/84656-air-pressure-relation-decibels.html)

Clipped 13th August 2006 03:07 PM

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!

theAnonymous1 13th August 2006 04:05 PM

http://physics.mtsu.edu/~wmr/log_3.htm

Clipped 14th August 2006 10:36 AM

thanx, i'll take a lok at that link you gave me... :)


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