In reply to:

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Unless the original waveform only reached 70% or something, but as I said before, the vast majority of CDs are already normalized.

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I've ripped recent CDs which have had a maximum level of 80%. And I don't always buy latest releases; I'm still filling in the gaps in my collection.

Ultimately, I don't expect things to be dramatically different after normalisation - I don't expect to suddenly hear the beginning section of Holst's "Venus - the Bringer of Peace", for instance. That's what I'll use rjlov's volume adjusting kernel for. What I do want is that all the tracks that I play are getting the most out of the dynamic range. Since the mp3 medium discards a lot of volume sensitivity anyway, I'd like to hear the faint overdriven guitar in "Private Universe" by Crowded House, rather than have it disappear because the algorithm saw the signal as being too soft.

Not criticising you, Tony, just adding to my argument.

Have fun,

Paul

Save the whales. Feed the hungry. Free the mallocs.