Sweeping. Swirling sound

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This topic contains 6 replies, has 4 voices, and was last updated by Profile photo of Rocketman Rocketman 3 weeks, 3 days ago.

Viewing 7 posts - 1 through 7 (of 7 total)
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  • #106988
    Profile photo of Rocketman
    Rocketman
    Participant

    I am using a Qu16. On occasions such as last night when doing sound check I am getting a sweeping, swirling sound on various mics and instruments in the background. Tried turning all the effects completely off & it was still there. Tried changing the microphones, still there. The night before it was fine. Has anyone else encounter this issue? Any insight would be muchly appreciated.

    #106996
    Profile photo of Mike C
    Mike C
    Participant

    It sound like you have something feeding / sending back into itself through a mix
    or FX send or return.

    When you turned off the effects was it at the FX return or at the FX send.

    Do you hear in headphones?
    Can you hear directly at the channel if you PFL the channel and listen.
    Is there any outboard equipment connected to the mixer.

    #106997
    Profile photo of Rocketman
    Rocketman
    Participant

    I turned the effects off via each person’s effect return…

    the drummer uses a roland module, and my self and the other guitarist run Fractal axe 3 and fractal Ax8… no other outboard equipment…

    I never tried to see if I could hear it via headphones through the PFL…

    My drummer plugs his headphones in his roland module and we send him monitor mix via aux send1, and he has heard it… it doesn’t do it all the time..

    #106998
    Profile photo of Giga
    Giga
    Participant

    I’ve had that happen when the monitors were very loud (in a rather small concrete boxy room). Try lowering the monitorvolume.

    Good luck.

    Giga

    #106999
    Profile photo of Mike C
    Mike C
    Participant

    By chance is the Roland drum module mixing the monitor send your supplying
    from the mixer back into the modules output, that would create problems.
    Some of drum modules I’ve seen that have an aux input there is a way to mix
    that input into the modules output.

    An easy test would to mute the drum monitor mix master or just unplug the cable
    and see what happens.

    #107004
    Profile photo of Scott
    Scott
    Participant

    Sounds like you’re describing a flanger or phaser output.

    It could also be a phase relation between multiple microphones. As suggested PFL single channels, but then also PFL groups of channels. When you add multiples does the sound come back? Add a few ms of delay to the front mics, and see if it goes away.

    #107005
    Profile photo of Rocketman
    Rocketman
    Participant

    I am going to try some of your guys suggestion this coming weekend and will give everyone and update… thanks so much for all the feedback and suggestions…

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