According to Iris:
sox input-file output-file vol x
Yes, probably much better than using the sledgehammer when a screwdriver
will do the job much more efficiently, although it would be better if
there was a way to use sox to raise the volume to the maximal level
allowed without clipping. The nice thing is that sox will output the
number of samples clipped, so you can always try again with a slightly
lower number if you get output like
sox: warning: vol clipped 851 samples
I think you can add a limiter value to this that will apply a limiter at
points where clipping would occur, so you can probably run it like
sox input-file output-file vol x y
X can probably be 1.5 or 2, and you would want y to be somewhere between 0.01 and 0.1 maybe. I can certainly understand the desire to use Audacity for this, since most of this is done for you so you don't have to play with the numbers so much.
~Kyle
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