Hi.

Right, _if_ they get normalized to the same amount. But actually, if they are analyzed differently, they will get normalized by different amounts. Also, RMS volume is still a little bit off the analysis I thought of. Do you know of the sone (as opposed to dBA) loudness indicator? Like dB(A), it weights different frequencies differently, so a full-peak 50Hz tone gets a different loudness indication than a 5000Hz tone, but sone is linear (dB is logarithmic), so a sone 2 loudness will actually be twice as loud as a sone 1 loudness. Now normalising due to the same peak amplitude becomes a whole different story as normalising to the same sone values.
Anyhow, I haven't yet tried this out, so I can't say how much different this would be. I know there is normalisation software out there that uses some sort of power based normalisation, but I don't know which one does. So for now, I will keep using software that does the simple peak amplitude normalisation.
I don't like dynamic compression all that much, because that also changes the relative volume of different parts of the same song, and I can't really influence that to a level I would like to take influence on it, so I skip over dynamic compression for now.

cu,
sven