[QUOTE=pooksahib;2632347]Thanks, but perhaps I didn’t explain myself properly. If I take a bunch of tracks - different genres, different sources - and set them all to, say, 90, the gentler tracks will sound too loud relative to the others. That’s the problem I’m trying to find a fix for (other than doing a ‘by ear’ reduction on the softer songs).[/QUOTE]
Most normalisation programs look at the peak levels and work backwards from that but if a song is intended to be quiet the whole way through then you’ll end up with the problem you describe.
I don’t think you’ll ever be able to do this without user intervention as there’s no automatic way of differentiating whether a song like that is intentionally quiet or the volume is just too low.