[Mike Rivers[_2_]]

On 10/12/2015 7:29 AM, wrote:
Actually, I was criticizing the need to have
all tracks on a CD peak within 1/10 of full scale,
for WHAT EVER reason.

For certain types of music played in certain situations, it's helpful of
every track on the CD is approximately the same _loudness_. If it's all
the same kind of music, and the kind of music that's usually fairly
heavily compressed anyway, then by making all the tracks peak at 0 dBFS
is an easy way to achieve this. You could just as easily make them all
peak at -6 dBFS, or -20 dBFS, but only wimps do that.

The idea is that you don't have to adjust the playback volume when
switching from track to track. If you're driving in your car, working
out in the gym, or if you're DJ-ing in a dance club, it's one more
control you don't have to fiddle with.

If you're sitting in your easy chair in the living room, it's nice to
give your ears a little break now and then.

The real solution, and it's sort of there but nobody implements it, is
to encode some information about the loudness of the track and have the
playback system adjust the level using that information and your
listening preferences.


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