Does digital affect analog sound??

Some say that digital equipment emits a "noise" that can affect analog. Obviously in your system it does. I have seen many power conditioners that isolate the analog from digital for this reason.

It isn't your imagination. Analog can be adversely affected by noise put back into the system, i.e. a backwave. Proper line filtering can take it out.
Brian

If my computer is turned on, my sound is bad on digital and analog. It must be putting something back into the power lines, or sending out radio waves, or what? It's in a different room, on a different power circuit because I have 3 dedicated 20 amp lines in my living room. When I listen to records, I shut off my Esoteric player, it does something similar to the computer, the sound is weak and soundstage is small.

CD players are a terrible source for noise and few line conditioners address noise issues properly. The only line conditioner I know of that isolates components and eliminates noise is the Foundation Research LC1 & LC2 they are bi-directional I might add. Meaning noise from a source cannot travel back into the system.

There designer is a noise specialist who sells his line conditoners to all sorts of industry not just audio. Bound for Sound rates these as the best out there and my ears tell me he is probably right.