DetlevD:
Hi James Buist, yes, the ReplayGain method makes a file quietly when ReplayGain is activated within the Player, that means levels down the original volume in order to give the loudness regulator the headroom to work. There is a standard lost of 6dB, that means half the volume, that means the amplifier needs 6dB more power to produce the same volume as without ReplayGain.
Please read directly from the author David Robinson how ReplayGain works.
There is a forum post with following links of interest:
Anyone figure out how to port RG to WMP PEAKVALUE and AVERAGEVALUE?
If you want to do some simple math on the already correct calculated ReplayGain values (basically not recommended), then look into the Mp3tag scripting language. There are functions for adding or multiplying and such more.
Well ... such scripting functions do you find within foobar too.
DD.20101020.1805.CEST
Thanks for that. Very informative and explains a good deal. The question now is how to bump up the overall volume to compensate as many tracks are still too quiet on the iphone even at max volume. And I do have the volume limit turned off.