On 22.10.2013 12:25, Łukasz Stelmach wrote:
log(10) = 2.30258509299 (?)
log(exp(1)) = 1
log10(10) == 1, decibels always use 10-base logarithm. Of course you can
also use natural logarithm, but then:
log10(x) == ln(x)/ln(10)
By the way, I recommend using excellent open source software like Octave
or Scilab. :)
Indeed it is -29.473, that is even less than I though. Why dBFS? There
is no absolute Full-Scale in this case. Full-Scale might be the number
of of packages available for the distribution rather than installed on
your machine.
Full scale is just 100%, IOW factor of 1. Of course you can have also
positive dBFS for values exceeding 100%. Decibels should never be used
without reference point, because it is always a relative value.
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