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Preparing files for broadcast delivery
Hi all, I have a 8×60’HD project that I am prepping for delivery to a network; it will be in HDCAM SR format. I was wondering what rendering solutions you would recommend that would ensure the best output from Adobe Premiere, before the digital files are handed to the post-house for mastering /conversion. Looking forward to some responses! Thanks
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5 Replies
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I’d ask the post house. Why? Because they have their own software and workflow. Are you getting the program captioned? They may want a proxy for the captioning program. Are they color grading as part of the mastering process? They may like ProRes HQ or DNxHD 220, or they may prefer a TIFF sequence.
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They are not grading, or doing anything with captioning, they are just laying the digital files , syncing it with the audio files (HDCAM SR), and then laying it out to HDCAM SR.. I’m wondering what would be the best way to get the files encoded on my end, with the least, if any loss of quality.. i will def ask the post house what they prefer but I thought i’d post here to educate myself a bit with all the knowledge:) appreciate the response.
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For size, ease of use, and ease of transport, I would probably do Avid DNxHD 220 or 185 (once the codec is installed, it’s a codec under the MOV container when you export). You’re at your final step, and the quality is high enough to where you won’t experience visual loss.
https://avid.force.com/pkb/articles/en_US/Compatibility/en372311 (free codec download)
ProRes HQ is another choice, if you have it…. but for this workflow it’s effectively the same thing unless the post house prefers it.
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Hi Angelo, thanks so much for your responses, your feedback has already helped me learn tremendously! One query, I see that despite installing the avid dnx codec, and selecting as the codec of choice with a mov container, the actual encoder is still the premiere’s native encoder; is this encoder fine to use? Are there 3rd party encoders? Thanks
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For Avid DNxHD, it’s still Avid’s codec… it’s just Adobe’s front end. There aren’t any non-licensed flavor of Avid’s codec so I don’t think it’s really worth sending it to a third party encoder for that particular codec.
I will say this: The codec only has preset choices, but it seems to be framerate/interlacing agnostic. I would pick the size that matches your video, and the number is the bitrate in megabits (Avid DNxHD 220 is 220mbits).
In terms of having a powerhouse encoding solution, I like Sorenson Squeeze since it interfaces with Premiere so well (it pops up as a preset, but Squeeze takes over the entire encoding engine, no need for an intermediate uncompressed file). At $1,000 it’s pricy unless you work with broadcast/DVD/Blu Ray clients often.
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