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Timecode shift when converting to 59.94
Hello There,
I have to send a 30 second spot, which we edited in FCP, to a Broadcaster that demands that it be sent with the usual pre-roll black, color bar, tone, title slate with the timecode at the very beginning starting at 09:58:20;00. This allows for the pre roll stuff to take place and for the spot to start at exactly 10:00:00;00. Al good so far.
But they ask for 59.94 fields per second. However, it was edited at 29.97. So we export a Quicktime Movie (not self contained), bring it in Compressor, export a ProRes HQ file at 59.94. HOWEVER, this shifts the starting timecode to 09:58:02;02… Does anyone understand why this is happening – and how I should fix it. This doesn’t happen if I export to 29.97…
BTW. This file is for digital distribution as we are trying to avoid tape….
Any advice will be greatly appreciate.
Sebastian
Sebastian W. Howard
Batchfilms
Sculpting Life Into Moving Pictures -
3 Replies
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Thank you Dave for your reply…
Yes, the video is at 1080. I guess this business of fields and frames leaves me confused every time… How can I confirm that my 29.97 frames per second video has indeed 59.94 fields in each of those seconds… Is it like this by default? I think I am going to have to sit down sometime soon with a book on this subject to wrap my head around the whole thing…
Many thanks again!
Sebastian
Sebastian W. Howard
Batchfilms
Sculpting Life Into Moving Pictures -
hi there
maybe there is a conversion from dropframe to non dropframe when you convert. or the other way around.
luckly i’m on pal 😉
grt
MauricePeople saying they don’t make mistake’s often make nothing at all!
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[Sebastian Howard] “the timecode at the very beginning starting at 09:58:20;00. This allows for the pre roll stuff to take place and for the spot to start at exactly 10:00:00;00. Al good so far.
But they ask for 59.94 fields per second. However, it was edited at 29.97. So we export a Quicktime Movie (not self contained), bring it in Compressor, export a ProRes HQ file at 59.94. HOWEVER, this shifts the starting timecode to 09:58:02;02…”
I’m assuming the 9:58:02;02 is a typo. It looks like a Drop Frame rollover error. Are you sure the originating sequence is displaying DropFrame?
There might also be a cheat available in Quicktime, where you simply change the TC within the clip.
jPo
You mean “Old Ben”? Ben Kenobi?
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