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Flicker in Edit to tape 24@25
On a G5 Dual 2.5, OSX 10.4.6, BM 5.6, QT 7.0.4 FCP 5.0.4.
Playing out a 24@25 timeline so its basically 24 fps playing out to 25 fps. Standard PAL Film situation. Playback settings are set to 24@25 repeat and we see that familiar once per second judder. Everyone’s used to it. No problems.
But when we try an Edit to tape, it becomes a huge judder just like if Playback settings were set to 24@25 pulldown or anything else except 24@25 repeat.
Only happens in ETT. moment you go nback to play timeline its fine. So we make tape layoffs by just playing the timeline. If the client needs it to start at a certain TC, we furst playout to a DigiBeta, then do a DigiBeta to DighBeta at the specified TC.
Anyone seen this?
Neil
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3 Replies
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OK I seem to have got a handle on this one…
The system a G5 Dual 2.5, BM HDPro Single Link. OSX 10.4.6, BM 5.6, QT 7.1.1 FCP 5.0.4.
I just installed OSX 10.4.6 combo, then QT 7.1.1, Pro apps update 2006-01, then BM 5.6 last. FCP prefs were trashed and permissions repaired. All disks were checked with Disk Utility.
Playback settings set to 24@25 repeat.
Placed a DV-PAL 24fps clip in a DV-PAL 24@25 seq.
Easy setup as Blackmagic PAL – DV 24@25 (created). Normal sequence playback shows the slight once-per-second judder. Edit to tape and Print to video show major judder like a field inversion.Placed a Blackmagic PAL 8bit 24fps clip in a Blackmagic PAL 8bit 24fps seq.
Easy setup as Blackmagic PAL – 8bit 24@25 (created). Normal sequence playback shows the slight once-per-second judder. Edit to tape and Print to video also show only a slight show once-per-second judder.So its just when playing a 24 fps DV clip through the BM SDI output and during ETT or PTV that one sees the problem. Normal playback is normal. Using the canned Blackmagic PAL-DV or the Blackmagic 8bit easy setups don’t make a difference.
Only someone who’s doing a film 24 fps project in a PAL environment and using a BM card to output to Beta/DigiBeta under Edit to tape or Print to Video will see this.
Anyone notice this?
Neil Sadwelkar
Mumbai, India.FCP Editor, Mumbai, India.
Completely PAL. -
Maybe you see something else, but I always see flicker on a good monitor when cutting in PAL (I mostly do NTSC, with the occaissional PAL project).
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That 24@25 flicker we are used to.
Can you please check what you see when you place a 24 fps clip DV in a 24 fps DV timeline and play it out through your BM card output?
And then repeat the same in Edit to tape or Print to Video mode?Neil
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