Pre-emphasis was a way to reduce tape noise from analog recordings. When studios started recording digital there is no use for it. CD contains pre-emphasis bit engaging de-emphasis built into every player automatically.
Learned something new today and it isn't good.
I have been in this crazy hobby for over five decades and thought I knew most of the basic information regarding audio quality.
That was before this morning.
Today I learned about the practise of applying "pre-emphasis" to CDs that was around during the late '70's and early '80's. Apparently this practise was developed as a way of reducing the signal to noise in digital audio. The problem is this was a two-part process and required the CD player to have a "de-emphasis" capability to allow the disk to play properly. Without the application of de-emphasis, cd's would sound "bright".
My question would be, "Does everyone else know about this?"
If you do, "How do you deal with it?"
I still listen to CDs and this is not something I need in my life.