After 5+ hours Qupac audio starts crackling, popping

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This topic contains 5 replies, has 3 voices, and was last updated by Profile photo of NZdave NZdave 2 years, 1 month ago.

Viewing 6 posts - 1 through 6 (of 6 total)
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  • #87313
    Profile photo of xiim
    xiim
    Participant

    I uploaded example: https://youtu.be/bTUeKhI0k3Q
    Sound comes from headphones out.
    Feels like some processor is overloaded.
    It does not matter what I do or which channel I PAFL. It becomes totally useless.
    Crackles comes like waves – at the top of the wave the sound disappears almost completely, then again crackling will go away and quietly start to come back again. Switching the device OFF/ON does not help. Also, device is not hot, at least I don’t feel with hand. At the same time these cracklings were not recorded (multitrack). They are audible only in headphones and monitors.
    And I don’t use FX at all.
    Also seems that if I just leave it ON, lets say whole night, then it works fine. But if I really use several channels, do multitrack recordings etc then it starts to happen.

    What should I do?

    #87333
    Profile photo of Mike C
    Mike C
    Participant

    Do you have anything connected to the analog inputs on the mixer.

    Look at the utility menu and see what the operating temperature is.

    #87334
    Profile photo of NZdave
    NZdave
    Participant

    Yes thats really weird.
    Check what Mike C says …
    And is there is NO computer plugged in?
    And is ST3 turned right down?

    #87342
    Profile photo of xiim
    xiim
    Participant

    Yes, 1-16 line inputs are all connected.
    No computer plugged.
    St3 turned off.
    Latest firmware.

    Ok, I will check temerature next time when it happens.

    #87346
    Profile photo of Mike C
    Mike C
    Participant

    In the video where is the playback source coming from, the analog inputs
    or from the USB Q Drive.

    Do you have the phantom power turned on any of the analog inputs

    #87350
    Profile photo of NZdave
    NZdave
    Participant

    And I don’t use FX at all

    Please also make sure the FX are definately turned OFF everywhere.
    Failing all of what Mike has asked.
    Maybe you could do a hard reset back to factory settings?

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