I tried to replicate the OPs problem with my setup (x370, Realtek ac 1220 audio). I’m a firm believer of getting the most out of what you have.
When using on board with 1990 pros, @24bit 48khz, with the videos OP linked, it does NOT sound acceptable. When maxing the bit rate and resolution to max or anything above 24 & 128khz, on board does sound a lot better, acceptable. I wouldn’t make buying an external Amp/DAC a priority if OP is happy with a higher resolution, but it definitely would make a difference with the 1990s.
I do wonder if Skype or some other application is changing the audio resolution automatically to something lower (for compatibility reasons) and that’s why he is hearing a sudden distortion.
with the wake of programs like discord I’m surprised anyone still uses skype. but honestly not surprised bacuse discord caters to a more gamer or a younger demographic. which is a waste of potential cause discord sounds better
Lol yeah I ditched skype long ago, teamspeak and discord are great. Although alot of businesses (including the one I work at) deploy a Microsoft suite and people use skype for business a ton
new skype doesnt sound that bad jut worse than the others. and had to use it a couple of times for interviews and tutoring whiel I was in school and the way the program performed just really bad I cant really get into specifics since it’s been a while since I’ve used it but I go pretty damn angry using it. the only issue I truely remember having is joinging a group chat and only 2 out of the other people in the call could hear me and the others couldnt only be fixed by restarting the program or restarting pc. or conving my study group to just use discord.
I am saying that in the computer you got high frequency switching noise from the various VRM’s, outside the computer you get USB/Network/Power cables with their respective noise.
Most higher-end mainboards have pretty good filtering against noise on the power rails, there are efforts taken with isolation slots, metal shielding and so on.
For beeing on the same PCB as very noisy components, the isolation is pretty good.
Ethernet (wired) has a very wide frequency spectrum, pulses on and off during transmission, and except for special flavours of CAT6 and CAT7, has 0 shielding.
What keeps it from inducing its noise into everything is it beeing twisted pair.
When using PoE (some desk phones are powered this way), you get amazing amounts of noise near the ethernet cables.
Ok I would expect PoE to cause issues, but most likely someone’s dac/amp on a desk would not be near a PoE device unless they have a work setup that has to be right next to a phone. Typically Ethernet is realistically not going to cause any noise issues, but instead possibly pick up noise
