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ART Tubefire sync problem

Discussion in 'Recording' started by jamesrbrown, Jan 16, 2009.

  1. jamesrbrown

    jamesrbrown Guest

    I purchased 2 ART Tubefire (TF) a few months ago to facilitate recording live gigs, needed more than 8 channels is the reason for 2 units.

    I am using a P4 3.0ghz, 120gb sata (dedicated drive), 2gb dual memory, firewire (VIA chip) pci card equipped PC running Windows XP SP3.

    When recording with just 1 Tubefire (8 ch) I have absolutely no problems whatsoever, all is perfect. But when I connect in the 2nd TF unit via the firewire connector (either thru the TF expansion port, or the 2nd port on the PC firewire card) I get sync problems (noise/static) occuring between the two units. ART says they have tested the PC config with no problems using a TI chip firewire card, they say the VIA chip firewire card should be OK as well. Checking my PC stats shows no problems with proc or memory constraints. I have tested this config on a borrowed MacBook (1.8mhz, 500mb ram) with no problems.

    I have added a wordclock cable between the unit, with a terminator...no change. Do I need to use a Wordclock source? Is there some Windows registry setting that requires a tweak?

    Any suggestions?
  2. Boswell

    Boswell Moderator Distinguished Member

    The TubeFire has only wordclock in and through, not wordclock out. If you use more than one TubeFire, you will need an external wordclock generator daisy-chained to all units, and a 75 Ohm terminator on the last one.
  3. jamesrbrown

    jamesrbrown Guest

    Thanks for your response. I thought this was the situation, I was grasping at straws to make it work.

    What puzzles me is why the Mac config works, is it because the Mac directs the clock sync from the 1st TF (it is the designated clock source in this case) to the 2nd TF via the Mac Firewire interface?

    If so, then is there a 'work-around' that will allow the PC to redirect the clock sync to the 2nd TF as well?

    Otherwise I will be obtaining a wordclock source....

    Thanks. JB.
  4. Boswell

    Boswell Moderator Distinguished Member

    No, there is no wordclock sync in the FireWire connection, and I find it hard to believe the Mac setup could be any different in this respect from the PC. The TubeFire manual instructs you to use an external wordclock if you have more than one of their boxes. I would just do it.

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