Latency & Digital Split Latency

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  • 2013/02/12 at 8:00 pm #23600
    Profile photo of clarocqueclarocque
    Participant

    Can anyone point me to the Analog In to Analog out latency spec for a iDR Mix rack? Or tell me what it is?

    Also, thoughts on latency for the following:
    iDR48 for FOH as primary > DANTE > iDR16 for MON > DANTE > back to IDR48 for the extra analog outputs…

    What will this round trip DANTE add to the overall?

    Thanks

    T112, R72, iDR48 w/M-DANTE (2), PL10, MixPad, Editor
    MacBook Pro, Mac Mini
    Lion/Logic Pro/PT10
    All latest versions/firmware

    2013/02/12 at 8:27 pm #33098
    Profile photo of tk2ktk2k
    Participant

    quote:

    Originally posted by clarocque

    Can anyone point me to the Analog In to Analog out latency spec for a iDR Mix rack? Or tell me what it is?

    Also, thoughts on latency for the following:
    iDR48 for FOH as primary > DANTE > iDR16 for MON > DANTE > back to IDR48 for the extra analog outputs…

    What will this round trip DANTE add to the overall?

    Thanks

    T112, R72, iDR48 w/M-DANTE (2), PL10, MixPad, Editor
    MacBook Pro, Mac Mini
    Lion/Logic Pro/PT10
    All latest versions/firmware

    idr in-out is 1.6ms.
    Surface-idr ia 1.7ms
    each network hop over ACE adds .1ms
    This is all on page something of the manual

    For Dante, I don’t know. The CL says .25ms per dante hop, so .5ms round trip + the 2.5ms delay of the yamaha CL.

    iDR-48, T-112, Mixpad
    College

    2013/02/12 at 10:04 pm #33101
    Profile photo of clarocqueclarocque
    Participant

    Thanks,,, I looked through manual again last night and didnt see… must have just missed it – thanks

    2013/02/12 at 10:07 pm #33102
    Profile photo of clarocqueclarocque
    Participant

    So shouldn’t be an issue using the DANTE to go back to the FOH mix rack for wedges, and keep the IEM on the monitor iDR

    T112, R72, iDR48 w/M-DANTE (2), PL10, MixPad, Editor
    MacBook Pro, Mac Mini
    Lion/Logic Pro/PT10
    All latest versions/firmware

    2013/02/12 at 11:06 pm #33104
    Profile photo of tk2ktk2k
    Participant

    quote:

    Originally posted by clarocque

    So shouldn’t be an issue using the DANTE to go back to the FOH mix rack for wedges, and keep the IEM on the monitor iDR

    T112, R72, iDR48 w/M-DANTE (2), PL10, MixPad, Editor
    MacBook Pro, Mac Mini
    Lion/Logic Pro/PT10
    All latest versions/firmware

    Yeah, however don’t run some of your monitors out of one thing, and some out of another, or they’ll be out of sync…
    MIDAS combatted this with their ‘dynamic latency’ thing, which will make all busses coherent… but also add up to 6.5ms of latency.

    long story short, route all on-stage sound sources this way if you care about phase

    iDR-48, T-112, Mixpad
    College

    2013/02/13 at 1:51 am #33105
    Profile photo of clarocqueclarocque
    Participant

    Thanks..

    My plan is to use the 8 out on the iDR for IEM, then all stage wedges and and side fills back though the FOH mix rack.

    I was thinking the lower latency on the IEM would be better….??

    2013/02/13 at 5:23 am #33108
    Profile photo of tk2ktk2k
    Participant

    quote:

    Originally posted by clarocque

    I was thinking the lower latency on the IEM would be better….??

    Spot on there. Besides sound is close enough to 1ms per foot that you’d probably still have to throw a delay on the monitors if the IEMs have vents.

    iDR-48, T-112, Mixpad
    College

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