Volume normalisation should never be on.

All it does is scan the tracks so they all play at roughly the same volume, however, many artists purposefully record different tracks on an album at different levels, so you don't really want this.

Fine as background music, but nor for critical listening.

I would presume they drop the volume by -3dB or so to give themselves some headroom for tracks that are mastered about 0-dB gain.


MQA would be broken with Volume Normalisation, it is no longer bit perfect.

No Darling, I've had it months!