yeah....its a shame how much dynamic range we are wasting.
to put it in laymens terms...if you arn't up on compression too much or whatever -
16 bit CDs have about 96db of dynamic range. If you "average" recorded passage was at say... -10dB, then you have a lot of headroom to play with. A vocal can swell to -1dB at some point...or...whatever the hell you want to do. Things get louder and softer at different points (thats not to mention the actual "life" that compression takes out...in terms of squashing the sound...but thats another story for another day)
The reason we are in this mess...is basically radio -
and,personally...I blame hip hop/dance type music. Every record executive wants their mix to sound "hot" on the radio...they want it to sound like it has more "punch" or "impact" than the next guys - so that people will buy the record. So, they tell that to the mastering engineers...and what do the engineers do? They use dynamics processing (compression..limiting..etc) and squeeze everything up into the top 1 or 2 dB. this makes the whole thing louder..."hotter" - at the same time it ruins the musical feeling.
Dance music.....or hip hop...stuff with a lot of synthesis, and what not....isn't going to suffer as much from this. And hell, it was probably that "hot" to start with. But, when you have something based on real instruments...it's a tragedy. (even if most radio music is worthless anyways..hehe)
This spreads down though all the way...the indy artist who had some great recording sessions starts listening to stuff in the car and thinking "man....my record just doesn't sizzle like these major label releases" - so, they have it remastered...crammed up to -1db, etc. etc.
If your stuff doesn't have much dynamic range to start with...then, sure....get as good a signal as you can...no reason to have an album at -10db the whole way through for no reason...when it could be at -3db...but,whatever.
So yes, things are getting louder. It's a radio war in many ways. Albums suffer.