Qu-32 USB-B Streaming Produce Robotic Noise

Forums Forums Qu Forums Qu troubleshooting Qu-32 USB-B Streaming Produce Robotic Noise

This topic contains 62 replies, has 20 voices, and was last updated by Profile photo of Mike C Mike C 1 day, 12 hours ago.

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  • #101666
    Profile photo of KeithJ A&H
    KeithJ A&H
    Moderator

    As Mike C says, the first thing to do is ensure the firmware is up to date. There were some changes in V1.95 to USB-B which help with many of the previously problematic USB host drivers.

    If this doesn’t solve the issue, and you are on a Windows PC, please check out the following article which includes information on possible reasons for the problem and tools to check the system is suitable for real-time audio.
    http://support.allen-heath.com/Knowledgebase/Article/View/1002

    And if all else fails, please contact us using support.allen-heath.com and we’ll be happy to run through your system with you to try and figure out the root cause.

    Thanks,
    Keith.

    #101962
    Profile photo of Toobz
    Toobz
    Participant

    Ok so here’s an update…..of sorts.
    The firmware was 1.94 so I upgraded it to 1.95.

    Previously the desk was only used for recording the direct outs from the GL desk and this time I plugged in the QU to the main PA.
    Using the ‘Alt Out’ TRS sockets I found that this electrical buzzing noise was actually coming through the PA but only when the QU-Drive was being read or playing multitrack.
    The noise did not come through the headphones socket or the main XLR outputs or the Mix outputs.

    This was a slightly different noise and it reminds me of the electrical interference when a phone was placed near speakers.

    Now I’m really unsure of what to do. I don’t want to push this venue to use the QU if there are these issues.

    #101972
    Profile photo of Mike C
    Mike C
    Participant

    Are you using a balances TRS connection on the ALT OUT 1/4 inch jacks?

    What happens if you use the main L R XLR outputs to drive the main PA?

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