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Is there still a problem with PAL DV output
Hi,
Got the latest DL Extreme drivers and latest version of FCP 5 and while the problem with PAL DV is not as noticeable as it used to be there’s still a problem. I’m getting a slight flickering line at the top of the screen (it’s only visible in 16:9 anamorphic as normally it would be hidden..
The only way I can get around it is to crop down one line..
Is it just me or is this a reognised issue?Johnny White
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7 Replies
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Sounds like the deck blanking, I had this on my DSR1500. I adjusted this in the menu and switched off the 16:9 detect on the deck. The flicker is possibly the 16:9 ident on the tape or timecode info.
Roddy Jamieson
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Thanks for the response.
The problem is it still seems to exist when outputting directly to a monitor?
I noticed it seems to switch on and off as I pause and play from the timeline (the top line seems to split and the whole picture moves down a line on commencing playback)
Does this make sense?Thanks,
Johnny
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Hi Johnny
I have a Pipe (sorry to intrude guys, but one has to see what the competition is doing 🙂
and I saw kind of the same problem. After some tremendous help from the Aurora guys I finally got the answer back.
FCP is doing it! Apple decided to make all PAL (regardless of DV or any other codec) upper first for external playback. As you know PAL DV is lower per spec. So Apple now forces FCP (external vout only – effecting all cards) to throw away the first line, shift all the rest one line up and filling the last line with black. This makes PAL DV on the external vout effectivly upper first. It doesn’t effect the processing because it really is only a ‘playback to output device’ adjustment. If you would output through Firewire to a DV deck all would be normal.
The reason you see a change is when you stop is that when paused FCP displays the ‘normal’ frame
That’s how I understood it anyway. Not a techo you know…
Who would have thought.
Cofe -
What are you playing back on?
Roddy Jamieson
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Playback is 8 bit uncompressed output through a decklink extreme on SDI directly to a JVC monitor.
Maybe I need to shift the whole output by a line….
Johnny -
Avid is doing just the same. DV in upper field. Drop the spec: make a system that actually works.
At *least* enable users, when they create their own preset, and setup DV upperfield, make it upperfield……….-Yves
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OK,
In adobe premiere to make your lowerfields videoclip upperfield without shifting up and rerender:
Right click the clip in the timeline.
Enable “Reverse field dominance”.
AND VERY IMPORTANT: Check “Interlace Consecutive Frames”I have no clue what the’ve changed in 5.1.1 regarding the fields problem…
-Yves
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