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Activity Forums Apple Final Cut Pro Legacy sync drifting

  • Posted by Thomas on March 9, 2006 at 8:33 pm

    My audio is drifting from 1 to about 30 frames in the end of a 30min captured video sequence.

    Capured from a Panasonic AJ-SD93 through firewire DVCPRO50
    How come?

    Mac dual G5 2,5Mhz 2,5G RAM
    I’m using OS 10.4.5 / Final Cut 5.0.4

    Thaxter Clavemarlton replied 20 years, 4 months ago 3 Members · 3 Replies
  • 3 Replies
  • Bouncing Account needs new email address

    March 10, 2006 at 1:31 am

    48 kHz audio on the tape?

    48 kHz audio on Capture Preset?

    External or Internal Hard Drive?

  • Thomas

    March 10, 2006 at 9:10 pm

    Thank

  • Thaxter Clavemarlton

    March 11, 2006 at 1:02 pm

    “Sync-slippage” can happen during some longer captures.

    Tapes recorded on certain camcorders from Canon have been somewhat more problematic but it also can happen with other brands of cameras as well.

    To reduce the problem on capture, break your captures into sections no longer than about 10 minutes each.

    You can then “reconstruct” the full tape’s recording (or any longer takes) quickly if you need to.
    Mark (and log) your first clip to End (Out-point) about 10 minutes or less from its In-point.
    Continue to mark (and log) your clips this way throughout the rest of the tape.
    Just make sure the In-points of the subsequent clips are EXACTLY ONE FRAME LATER than the Out-points of the previous clips.

    You can do all this while actually scanning the tape(s) or just by inputting arbitrary TC numbers, logging them… then use Batch Capture to bring in all of your clips.

    Its very easy to then “reconstruct” the shorter clips back to any “continuous” length you want on the timeline by just “clicking” them on in order.
    EVEN FASTER… select ALL successive clips at once in the browser (with the browser column-order set to “Media Start” highlight all clips) and drop them, all at once, on the timeline… they’ll all pop up in continuous order.

    Also read this link:
    https://docs.info.apple.com/article.html?artnum=58640
    It contains more “sync-loss” info.

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