johndbctx wrote:

Hello,

I am new to this forum. I would like to know more about suppressing audio and digital feedback from CD player to computer. In other words, I want to know how much audio to digital feedback can be suppressed when users connect through an audio jack from CD player to computer.

I am using the following apps: Nero and Audacity. So far, when I play a CD in my portable CD player, it has a faint sound when I turn up the volume at maximum level. When I connect my CD player to my computer using an audio jack, there was no feedback when I was using my Audacity app.

Right now, I have applied one of my tracks at the following settings:
-30db for bass and -30db for treble. The goal is to suppress most or all analog or digital feedback, so users would be unable to create any copies and have their copies illegally share them online. In other words, prevent those tracks from going viral.

Any solutions or comments on how to perfect this method?

Regards,
johndbctx

Where did you get the idea that such "feedback" even exists? When you "connect through an audio jack from CD player to computer", it would not matter if there WAS some "feedback", since it would be going to the OUTPUT jacks of the CD player, which are totally insensitive to any such thing.
This is nonsense! It does not exist.

The faint sound you hear when you turn your portable player all the way up is not likely to be "feedback", but merely the background noise level of the player circuitry.

Your "method" is a non-viable solution to a non-existent problem.