You could always investigate how to use Apple's Sound Check, which by all accounts is a similar implementation to Replay Gain.
Failing that, you might want to take a look at this:
http://www.mani.de/ivolume/
You could always investigate how to use Apple's Sound Check, which by all accounts is a similar implementation to Replay Gain.
Failing that, you might want to take a look at this:
http://www.mani.de/ivolume/