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Multicam vision mixing
Hi
If Ive a sequence with multicam clips in HD on it, and the picture playback starts to struggle a little (stuttering and not being smooth)
should I drop the project settings down to SD and continue. Will this help the system out or will it still struggle as the source footage is still HD.Peter
Post Production Dubbing Mixer
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3 Replies
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It will probably still struggle. You can transcode the footage down to a higher compression ratio (10:1, 28:1) and then relink back to the HD material when you’re done.
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Hi Brendan
not wanting to try on a real job and fail, can you explain the relink process youve suggested so i can have a go before it matters?
PeterPost Production Dubbing Mixer
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Sure,
Since I hate dealing with decks, I’m going to explain how I would do it with footage already in Avid. But you can also capture at a low resolution and then re-capture at a higher one, but look up a tutorial for that I’m sure it exists online somewhere. Since I mostly deal with music videos, Canon SLR/XDCAM/P2 footage, here’s what i do (assuming full res files are in Avid already)
1. Organize and Bin HD footage accordingly
2. Locate Multi-cam footage and use “consolidate/transcode” function to transcode HD footage to compression ratio 28:1.
3. Take newly transcoded 28:1 footage and put in the bin you’re going to edit from.
4. Put original HD footage in separate bin, close bin (won’t come back into play until end)
5. Sync 28:1 multi-cam clips to your liking.
6. Edit
7. When you’re finished editing duplicate your sequence. right click on final sequence, hit “relink.” At the top choose the drive the mxf files are located on. Under “video parameters” at the bottom select “relink method: specific format.” Choose the ORIGINAL hi-res format that you captured the HD clips in. Avid should relink them just fine, and then you’re good to export full-res.
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