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audio out of sync
FCP 4.5, G4, firewire mini DV
The audio is falling out of sync during digitizing. Any thoughts.
Thanks,
Tracy -
4 Replies
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What camcorder recorded the tapes?
Are you using the same camcorder for digitizing?
Did you have the camcorder set to 48 kHz or 32 kHz?
“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. -
Sync Problems?
Your drives are too slow.
Your clips are too long.I suggest internal HDs for capture, playback and output. Although they work for some people, FireWire drives are not relible for many people. Apple does not recommend them.
I suggest to capture clips in scene and take, not an entire tape at at time.
Although scene and take used to be the norm, but with larger drives and many “self -trained editors” not knowing what even “the norm” is – many people try to capture an entire tape…and then wonder why they had sync problems.Scene and Take! Slow and steady wins the race.
Kevin Monahan
Author – Motion Graphics and Effects in Final Cut Pro
fcpworld.com -
got it. Thanks for the help.
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I have read quite a few posts but haven’t found one that addresses my problem exactly. I am running FCP 4.5 I have not updated to Quicktime 7 yet so I am running Quictime Pro 6.5.2 I am on a G5 Dual 2.5MHz with 6.5 gigs of memory. I have lots of firewire drives attached to the system and the files I am working with are on those drives. This is the problem. I’m putting together a little montage and pulling in both video and still photos as well as music. I am working at 16bit 48K. All the video has come in via DVD’s The DVD’s were made by recording them on a Pioneer DVR-7000 recorder. They were then made into movies with a program called “Cinematize”. These are the video files I am working with. I have an Aurora Igniter X installed on this MAC for playback.
Problem is: the audio is drfiting away from the video as I play back my material. When these DVD’s are played they are perfect. When the Quicktime movies are played, they are perfect. It’s only after i put them in the timeline that the problem occurs. I’m not talking about anything except literally playing a 30 to 40 second cut from a longer (as much as 55 minutes) movie file. The audio sometimes plays fine and always begins in sync. It drifts as the file plays. If i stop the file for a moment and start it again it is in perfect syn from that point and then begins to drift again. I haven’t even tried to output it yet, this is all playback.
I have checked the settings and they all seem to say 48K and are 16 bit.Any ideas? Help! Thanks.
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