you simply can't algebraically sum two sound pressure levels. a sound pressure level L1=50db + another sound pressure level L2=50db isn't equal to a sound pressure level of 100db.
The mathematics law governing this phenomenon is on logarithmic base.
The increment should be minor of 0,5db
Cheers
Last edited by pupaxx; 11-11-2011 at 11:47 AM.
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