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1080i edit to tape dropped frames
I’m having a dropped frames nightmare, hopefully someone can wake me up.
I’m trying to edit to tape a 1080i-8bit 29.97 sequence to an HDCAM deck. The sequence consists of a single locked off shot with 2 channels of audio faded up and down from black and full screen graphic (.jpg still 1920×1080 72dpi) at the beginning and end of the sequence with a music bed.
The sequence generally will playback the video portion without drops but it will usually drop frames on the still .jpg usually on the fade but not always. Sometimes the slate (FCP text) won’t playback without dropping frames. My dropped frames happen at such different places it’s hard to nail down what is causing them.
Everything is in Safe RT with everything rendered to the RAID, the canvas size is fit to window, no other apps are running, I’ve trashed prefs, restarted, rebooted, reformatted, etc. but I still have the same issues.
What am I missing? What other issues should I consider? Any help would be appreciated.
-Keith
FCP 4.05
Kona2 with Kbox
Dual 2.7 – 4Gb ram 10.4 .4
4Gbit Fibre Channel Huge 4105 in HDT mode (244MB/sec read & write from AJA test)
Sony HDW2000 -
1 Reply
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There is a function in FCP that is often overlooked… and it can help with many audio and video “skipping”, “sticking” and “missing” problems.
You should “Mixdown” the Audio for playback before you dub out of FCP, or during the edit, if you have audio/video stuttering, drop-outs, sync-slippage, or freezes.
NOTE: Mixdown has even been demonstrated to help with slipping, skipping problems (or “missing” audio clips) for files being EXPORTED as QT (or similar) files out of FCP.
First, SELECT ALL of your audio tracks (highlight them) on the timeline, then:
Sequence Menu > Render Only > Mixdown.
You should see a dialog box telling you its rendering.
It might seem to make little sense that “Mixing down” even simple audio tracks will “fix” complex video “freezes” or random audio dropouts to tape or export, but it CAN.
NOTE: It does not matter of you only have one audio track, if there are random freezes during output, you should try the Mixdown.
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