On Oct 15, 2013, at 10:11 05, André Garnier Coutinho wrote:
GdB = 20log(Out/In) ?
Close. You actually want:
GdB = 20*log10(out/in)
You probably knew this already as standard mathematical notation assumes log == 'log
to the base of 10'. However, the log() function in the math library will get you
natural logarithms ('log to the base of e'). You want log10(). Been there, done
that confusion myself… :)
Cheers!
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