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Kona 2 pulldown on output of 23.98
I’ve cut a project at 1080i 23.98 uncompressed. I’m doing an edit to tape to a HDCAM HDW-2000. Before I edited to tape I changed my easy setup to 1080i 29.97 and the video plays fine to tape until the sequence hits a name key. When the key dissolves in it looks like the red channel of the video starts pulsating and continues until the next cut, dissolve or key. This problem alternates with every dissolve or key for the entire piece. I’m not running tri level sync and I’m not sure if that is the symptom of not having it. Will the Kona 2 do a realtime pulldown of 23.98 material on the fly? Is the above method the way to accomplish this?
Ultimately I ended up mastering to the HDW-2000 at 23.98 and playing back the tape from a JH-3 to get the pull down (yeah I know I could have captured from the JH-3 and avoided the whole issue but I didn’t discover this until after the piece was finished)
Keith
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2 Replies
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[buglight] “I’m doing an edit to tape to a HDCAM HDW-2000. Before I edited to tape I changed my easy setup to 1080i 29.97 and the video plays fine to tape until the sequence hits a name key. When the key dissolves in it looks like the red channel of the video starts pulsating and continues until the next cut, dissolve or key. This problem alternates with every dissolve or key for the entire piece.”
First off
If this is 1080 10bit content there is not anything real time for transitions and effects and this sounds as if your computer is not up to snuff to handle the content without fully rendering it out.
Graphics and lower 3rds require more horsepower from the RT engine and unless you are working on one heck of a machine and storage array this is going to happen every time.When laying 1080 10bit files to tape, I take the time to render the entire file out as a self contained movie file and then lay that file to tape – I have never had an issue with that process
gary adcock
Studio37
HD & Film Consultation
Post and Production Workflows
Chicago, IL -
[gary adcock] “First off
If this is 1080 10bit content there is not anything real time for transitions and effects and this sounds as if your computer is not up to snuff to handle the content without fully rendering it out.
Graphics and lower 3rds require more horsepower from the RT engine and unless you are working on one heck of a machine and storage array this is going to happen every time.When laying 1080 10bit files to tape, I take the time to render the entire file out as a self contained movie file and then lay that file to tape – I have never had an issue with that process “
This was 8 bit 1080. Everything was rendered as a self contained movie file. I didn’t have any problems with dropped frames only the “pulsating” red channel outputting as a 29.97 sequence with Kona2 adding
the 2:3 pulldown. The same sequence played just fine at 23.98. The Kona2 2:3 pulldown is what I was having issues with. This isn’t the first 1080 project this system is done, all others work just fine. This is however the first 23.98 1080 project.
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