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Workflow for 23.976 source to 29.97 interlaced for broadcast delivery

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Stephen Pickering
Workflow for 23.976 source to 29.97 interlaced for broadcast delivery
on Sep 7, 2018 at 1:23:45 am
Last Edited By Stephen Pickering on Sep 7, 2018 at 2:14:13 am

I know this question has been asked before, but I'm still not totally clear on the best method.

I have a 1920x1080 23.976 progressive sequence using footage that is also 23.976 progressive. Because I assume progressive will be needed eventually for online use, I have everything in a 23.976 progressive timeline.

For broadcast I need to deliver 1920x1080 29.97 interlaced.

What's going to be my best option for best delivery?
1. Export the 23.976 progressive timeline directly to a 29.976 interlaced deliverable.
2. Export a 23.976 progressive Master (DNxHD) that I then encode (via Media Encoder) to 29.97 interlaced.
3. Since I still have the sequence, I could change the sequence to 29.976, then queue in Media Encoder where I make the change from Interlaced to Progressive. This way it wouldn't be two exports- but would that matter?

It seems the general consensus is option 2. Is there any advantage to do it any other way? I read about 3:2 pulldown when going from 24 to 29- Does PrPro do this automatically or do I select it (I see the option on only some of the export formats)?

Thank you,

Stephen



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Brent Marginet
Re: Workflow for 23.976 source to 29.97 interlaced for broadcast delivery
on Sep 7, 2018 at 3:44:46 am
Last Edited By Brent Marginet on Sep 7, 2018 at 3:49:29 am

Don't forget that you will not only have to deliver the show as 29.97 Interlaced but it will also likely need to be 29.97 Drop Frame. This poses a cut length issue. As an example a show that must be delivered as 45;50;00 with say 5 x 10 second blacks will need to be cut to 45:47:06 at 23.976 with 5 x 10 second blacks.

I wish I could help you more on this but I always use Avid to do these conversions and so I'm not that familiar with how it's done in PP.

"MY MEDIA/PROJECT MOTTO: If you think three copies of your Media or Projects are enough. Take a moment to place a value on them and then maybe add two more. Hard Drives are now stupidly cheap. A RE-SHOOT AND YOUR TIME AREN'T."


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Ricky Barrow
Re: Workflow for 23.976 source to 29.97 interlaced for broadcast delivery
on Sep 7, 2018 at 11:26:06 am

I have always been advised to run the 23.976 Progressive Master through After Effects, being told it was the best method for this conversion, using the last option of the 5 listed under 3:2 (I believe WSSWW). HOWEVER, the last time I converted I found it just as good and more efficient to duplicate the sequence in PPro, change the settings and export from there.

Ricky


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