USB B streaming audio distortion (Qu-24)

[AndreasModerator]

Interesting find! Could be that the OS tries to play some system sound in parallel with the application using the Qu via Asio/CoreAudio.
Never assigned my “pro” audio gear to be the default sound device so I probably never run into similar issues.
I’ll give it a try to see if I can finally replicate that issue on my setups.

[David HaughtonKeymaster]

Hi all, hope you’re well. Thanks to Ernie (@vin7) for the information. Can anyone confirm that Ernie’s solution works for them or you still get the intermittent noise? @lrdtgarsas @asicam @philt80 @rjmsheath Looking forward to hearing from you.
Cheers. Harry.

[philt80Participant]

Hi Harry,
Unfortunately, I got around the issue by completely replacing my motherboard. I just got kind of fed up and it was a last resort. I did try the onboard sound card as my main device with no better changes. The only thing I can relate it to is the southbridge chipset changed. (with the new motherboard) I kept everything else the same (video, HDD, usb cables, ram, add on cards etc). I can get you the models of mobos if needed. In the end that was what fixed it. I have not had the issue since then.

Phit80

[BorissParticipant]

Hi man, I got the same problem as you,only that i have a macbook pro mid 2014

[I amParticipant]

Well isn’t that something I could return my computer buy a MacBook Pro and have the same exact problem. Thanks for the info . I guess it’s not just an HP thing.

[mkParticipant]

Just FYI: https://forumsarchive.presonus.com/posts/list/33427.page.

[[XAP]BobParticipant]

No, ta a computer industry issue – USB is so cheap that nothing else stood a chance, so anything that has a requirement not met by USB (time reliability) is always hanging on by a thread

[AndreasModerator]

Nice article. Sad point is, that we already were at that point including fix and I simply forgot the xHCI issue:
Qu-24 electrical noises during streaming

[mkParticipant]

Regarding the article: last I explored the issue on my QU 16 I had previous build of Win 10. Now I run Version 1607 (Anniversary Update) and I noticed Windows installed and is using Microsoft’s driver — not Intel’s one. According to the article this could be one of ways how to make USB working. Unfortunately I do not remember if I had Intel’s or MS’s driver in the old installation so I can’t do a comparison. Nevertheless I have connected to QU, have set streaming mode to minimal latency and just playing music. When the issue was appearing it usually got distorted in ten minutes. We will see, I will post result after I have some.

[JPParticipant]

YES!! Thanks Andreas! I was having this robotic sound / static issue when streaming from my Qu-Pac to Windows 10. Disabling xHCI as described here worked perfectly.

[lrdtgarsasParticipant]

No noise for 1 year since I followed Ernie’s recommendations (onboard card as default sound device) Thanks to Ernie who bring life to one Qu-24..! 🙂

[I amParticipant]

Do you mean select in your Daw?

[Dick ReesParticipant]

Check the cited post:

USB B streaming audio distortion (Qu-24)

[I amParticipant]

Already read this post it changes nothing. I’m not even recording my inputs are locally enabled and I just sit there and watch sporadic signal noise into my DAW.

[BCElyParticipant]

Do A&H have a working solution for the distortion on USB3 ports yet ?

I’m on a windows 10 platform with as laptop that only has USB3 and no way of disabling the XHCI in BIOS

[Author]

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