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Very Ocassional Clicking and a few questions

Discussion in 'Recording' started by PaulStory, Jun 10, 2001.

  1. PaulStory

    PaulStory Guest

    Hi All,

    I have a DP 2.72 setup with a G4 533,
    256 RAM, OS 9.1, (2) 2408s, (1) 1296 and (1) MTP AV. All with latest drivers. Every once
    in a while all of the channels will start
    to click. The clock source is a Mackie d8b
    w/ the Apogge WC card. A reboot fixes the
    problem. Another problem is that I have
    never been able to do a sample accurate
    transfer from 20 bit ADATS without the exact
    same clicking. When both 2408s are on, the
    second one's LEDs light up showing a level
    from the top 2408 (no signal is being sent
    to the second 2408 and for experimental
    purposes nothing was even hooked up to it.
    I have the first 2408 plugged into the 324
    card in the first slot, the 1296 in the
    second and the 2408 in the third. I really
    like DP but these are almost deal breaker
    probs. I'm waiting for 3.0 to see what
    happens. I wish MOTU's tech support were
    more like Mackie's!! BTW, I went through 5
    trips to GC to get 2408s that work this well.
  2. chris lannon

    chris lannon Guest

    Yikes Paul

    Do you have original clock card handy for a test?

    Sounds like a Mackie problem (clock card)

    Good luck
  3. PaulStory

    PaulStory Guest


    Yes, I still have the card. It seems
    about the same. It's occasional, not even
    every session (it seems my assitant has had
    a lot more probs than me....it's the way
    it always goes with tech probs...the
    assitants seem to be a bug magnet...hehehe).
    I even went so far as to buy a new computer
    as the tech at MOTU (who is not my fav guy
    right now) talked me into thinking that it
    was my other G4...grrrr.... should'a known
    better, but after trying 5 different 2408s
    to get 2 good ones I thought I was cool.
    Once again I'll say... when it works the MOTU
    stuff is some of the best (the 1296 rocks),
    but MOTU's tech support is some of the worst
    I have ever encountered. I have been given
    completely opposite advice from them on
    several occasions. As we both know the
    Mackie/d8b support is the best in the biz.
    I'd like to see MOTU try to move in that
    direction. Anyhoo, I was thinking of an
    Aardsync II. Maybe that will fix it, or at
    least improve the sound :D
  4. dantewurliuchi

    dantewurliuchi Active Member

    Feb 16, 2001
    Kelseyville, CA

    How are you distributing the Clock from the Apogee card? Are you running 75 ohm coax to the first 2408 and daisy chaining to the remaining devices from there? Or are you setting the 2408s' Clock Source to Optical In and only sending coax to the 1296?

    How do you work around the fact that the MTP A/V has no Word Clock In? Doesn't it have to be the Word Clock master? Or do you take it out of the Word Clock chain altogether and just use its Midi capabilities? This is curious to me.

    When trying to make sample accurate ADAT transfers, are you running 9-pin in from the last ADAT to the PCI-324 card and setting the PCI-324's clock source to ADAT?

    A clock distribution box would probably work well for you. You could supply clock to each device _directly_ via coax. Or you could get a Digital TimePiece that supplies word clock to the PCI-324 card via Control Track -- something I find very stable with either the DTP or d8b as master. Only trouble with the DTP is MOTU doesn't make a USB version (there's a question for Magic Dave. Why not?). But you could network it in through the MTP A/V's network port.

    You shouldn't have to spend any money at all, really. You should be able to find the right setup and settings with what you have.


    Dan Worley
  5. Jon Best

    Jon Best Active Member

    Mar 18, 2001
    One other question- you probably aren't using it, but I have found that using Mackie's dither on the multitrack outputs is a nice way of introducing a lot of random clicks and pops. This was with ADATS, and I just stopped using it for that transfer. Haven't seen it since, but it was odd...
  6. chris lannon

    chris lannon Guest

    Paul ..if you post your question under 'Magic Dave says' we/you might get some quick answers.

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