Good solution, thanks for sharing!

i would go with the optical port (SPDIF) since you have the dac already. that is actually how I run my dac right now. you can't get ground hum over an optical cable! if you go with an isolator try to determine what speed it runs at and that it will accommodate the bitrate you need, some of the isolators (like the one in my video) only run at usb 1 speeds. you could try the onboard audio and see what it sounds like. some of the newer computers have pretty good audio onboard.

@@reileymckerracher9181 thanks for the quick response! I actually bought an SMSL SU-1 to supplant my computer's realtek audio chip. I think I'll take your advice and just use an SPDIF cable, I don't think the difference in sound quality (besides ground hum) will be audible :)

@@tw_judy nice DAC! the spdif is pcm audio, so youll miss out on mqa, but unless you are using tidal or equivalent, no real loss, i doubt youll hear a difference even if you were.

Maybe it is defective? I was using a DAC that had its own power supply and it worked. Just tried with an SD card reader which needs the USB power and it worked as well. I assume the limit of power the isolator can pass through is pretty low. As someone else pointed out, the chip in the isolator is USB 1.1 so it is very slow. It takes a fair bit of time for my card reader to show (5 seconds).

@@reileymckerracher9181 I think it is defective. I've sent a video to the seller concerning it. Waiting to hear back from them. I may just spend the extra and get an iFi unit for the USB 3.0 (Not that it's necessary). Would this be suitable for plugging into a mixer/audio interface or is it too slow for recording functions?

@@bcj842 I'm not sure if it would be adequate for a mixer, I'm only running a DAC on it. My DAC is old and is limited to 16bit 44khz on USB so not a dense data stream. Sorry, I'm no help on that one!

​@@reileymckerracher9181 Thanks for chatting anyway! I’d have to dive into the specs of my mixer a bit more to make that call. I’m probably just going to shoot for trial and error. If I get a replacement and it still doesn’t work, I’ll buy something more premium.

Hopefully this helped! The USB isolator fixed the issue with noise coming through the usb connection for me!

Just a guess, but try turning down the quality in Windows. I know some of those dongles will run at 32bit, which is probably too much data for the isolator. try at 16bit.

@@reileymckerracher9181 at higher resolutions it doesnt even have sound,its weird cause the dongle is working without the isolator but looks like they just dont work toghter

@@reileymckerracher9181 still not working, it's weird cause the dongle is working fine so is the isolator but both combine didn't work

@@gs-nq6mw that is weird, sorry I'm not much help. hard to troubleshoot without the hardware in hand.

the adum3160 operates at usb1 speeds, so it has a max of 12Mbps. 32bit 192khz audio (in stereo) is 11.7Mbps so you you would be right at the limit. I'm not sure if it would work. I would look for an isolator based on the adum3165 or adum3166 to get 480Mbps then it should be fine.

So you aren't using a computer as a source? my solution will only work if you are using USB from a computer as the source. In your case it could be the audio source (are you using a digital coax input?) or the power adaptor.

The jitterbug passively removes electrical noise; it doesn't perform full isolation. I have used similar filters (like the jitterbug) for car audio, improving background hum/grounding issues with varying limited success. Why doesn't the jitterbug help your situation? I'm not sure, sorry!

@@reileymckerracher9181 my GPU produces a lot of noise, that i can hear through my speakers. My next step is trying galvanic isolation with a usb to optical converter to my DAC :(

@@vinpin My GPU has a bunch of coil wine, too. Too bad they don't design them a little better! Thankfully, I don't get it through on my DAC. I'm actually using a spdif optical cable for my DAC now, not the USB isolation, and a separate power supply. no ground hum wtih the optical cable!

@@reileymckerracher9181 seems likes thats the fix, thank!