Phase problems with the audio-groups

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This topic contains 4 replies, has 4 voices, and was last updated by Profile photo of Detonator Detonator 5 years, 11 months ago.

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  • #48464
    Profile photo of Patrick L.
    Patrick L.
    Participant

    I had a great first gig with my new Qu24.
    But what I have noticed that I once I assign an audio channel to a group a kind of phase problem occur.

    Am I doing something wrong or is this a known problem?

    #48465
    Profile photo of GCumbee
    GCumbee
    Participant

    Sounds like you got a double path going. Channel to LR then channel to group to LR.

    Unselect the channel(s) from the LR.

    Your path should be Channel> Group> LR.

    See if that fixes it.

    #48474
    Profile photo of Patrick L.
    Patrick L.
    Participant

    Thank you, GCumbee!

    Your advice has solved my problem.

    #48475
    Profile photo of Andreas
    Andreas
    Moderator

    …this is probably one of the big differences when coming from analogue desks, where such a combination works well.
    Thought about if this may be worth a feature request to align at least the internal signal paths, but realizing all the EQ processing inside a group that’s probably not possible at all (not mentioning the optional delay in each group).

    Does anybody know how other digital consoles (GLD, iLive etc.) behave in this respect?

    #48489
    Profile photo of Detonator
    Detonator
    Participant

    Andreas –

    The only consoles in the entry price level that I am aware of that are phase coherent THROUGH THE MIX BUSSES are the x32/m32 series from Music Group. I have no info on the just announced/released models from Allen & Heath, Yamaha, Avid, Roland, Digico, etc., but on most digital consoles, paralleling a signal through different “length” pathways (ie., #1 straight to LR, #2 through a mixbuss then to LR) introduces latency which causes the “phasing” effect on the signal, which is most noticeable in the higher frequencies, such as vocals…) I learned this in 2006 on an LS9.

    Even the x32/m32 will suffer this problem if an effect or signal processor such as EQ is INSERTED on one of the paths of a split signal.

    -Tim Tyler

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