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1. Re: PAL HD to SD anamorphic for UK broadcast
Richard M Knight Sep 24, 2014 8:28 AM (in response to Qengineering)I would edit in a native HD sequence and use an export similar to the following: Use 'scale to fill to lose the black bars and check MRQ to improve the HD to SD conversion.
The Audio level for most uk broadcasters is indeed -23db LUFS, use the loudness radar audio effect in CC to measure this. Line-up tones and bars, I expect, will need to be added as per their spec.
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2. Re: PAL HD to SD anamorphic for UK broadcast
Qengineering Sep 24, 2014 8:34 AM (in response to Richard M Knight)Wow, extremely brief and accurate answer!
Thank you so much!
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3. Re: PAL HD to SD anamorphic for UK broadcast
Richard M Knight Sep 24, 2014 9:55 AM (in response to Qengineering)Brief and accurate is what I aim for, you may well have more questions when you do your first export! Most of the specs. of the UK broadcasters, especially with regard to sound, have evolved from the analogue, tape based, non-loudness days. It is always worth doing a trial file delivery well before deadlines to get their ok..
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4. Re: PAL HD to SD anamorphic for UK broadcast
Qengineering Sep 24, 2014 10:01 AM (in response to Richard M Knight)Thanks much. We're trafficking through ExtremeReach in the U.S. They have a partnership with IMD in UK who will then distribute to 7 different broadcast facilities. I'm pretty comfortable meeting IMD specs (fortunately I can view PAL interlaced on a CRT here) and we're currently waiting on the Clearcast approval.
I may follow up if and when I get a technical rejection...
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5. Re: PAL HD to SD anamorphic for UK broadcast
Ann Bens Sep 24, 2014 10:52 AM (in response to Qengineering)I drop my 1920x1080 @ 25fps file into a PAL DV Widescreen sequence and I see narrow black bars on the sides.
That is because 1920x1080 is true widescreen (16:9) and PAL(/NTSC) DV widescreen is not.
Its all in the pixel aspect ratio.
Then to top it off, they want upper field dominance, and Premiere has NO preset for PAL (SD) upper field!
That is correct PAL/NTSC SD is always lower. You cannot even export to dv avi in upper.
At one time dv avi was upper only when it was captured with a Matrox card.
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6. Re: PAL HD to SD anamorphic for UK broadcast
Qengineering Sep 24, 2014 11:36 AM (in response to Ann Bens)Ann,
So, in this discussion (link below) you and Ernesto instruct to increase the H&V scale, presumably to 54.7%, to crop the top and bottom and eliminate the black bars. I can see the advantage of this to prevent the (albeit small) distortion incurred with my and Richards settings. And then, I may need to raise the image one pixel (line) to obtain proper field dominance. Interesting hoops we have to jump through... Is there a tutorial on this anywhere?
Thanks for the extra info.
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7. Re: PAL HD to SD anamorphic for UK broadcast
Qengineering Sep 24, 2014 12:04 PM (in response to Qengineering)Ann,
Can you clarify your statement about field dominance? I had to build my own preset to export a Apple ProRes 720x576 Interlaced Top Field First spec that I received from IMD.
All of IMD accepted files (Both SD and HD) are spec'd as "Interlaced Top Field First"
I can't find a direct link to the spec sheet they emailed me (mine includes Apple ProRes) but below is basically the same info
http://bradbell.tv/blog/wp-content/uploads/2013/11/IMD-Supplying-Copy-FTP-Detailed.pdf
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8. Re: PAL HD to SD anamorphic for UK broadcast
Ann Bens Sep 24, 2014 12:12 PM (in response to Qengineering)The easiest way is to make a 1920 timeline and export to 756 and set Scale to Fill in the Export settings as Richard showed you.




