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Applying Kona to a 23.98 project
My captioning house has AJA KONA LH card on their Final Cut Pro 6 in conjunction with the AJA KL breakout box. They take my 28:45:23 project as a Quicktime Movie (exported as a 23.98 from my timeline containing 24p advance segments). The Quicktime movie has the proper time code and length in my Final Cut as well as the captioning computer, but when they export it using their Kona card to 29.97 it gains a couple of seconds. (I also notice that the clip gains seconds when opened in Quicktime Player as a 23.98.) If anyone is familiar with the Kona card it would be very helpful to know what Kona settings should be tested to help the Kona card properly recognize the time code and project length?
jmf
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13 Replies
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This isn’t a KONA issue…nor is it an FCP issue. This is an issue of DROP FRAME TIMECODE s NON-DROP FRAME TIMECODE. 23.98 is NON-DROP only…so if you now output this to DROP FRAME 29.97, your timing will not be the same. Nope, what you need to do is figure out what timing you need at 29.97 DF…and then adjust your 23.98 NDF timeline to compensate for that.
Here is how I do it now, and in this blog is a link to how I used to do it:
https://lfhd.blogspot.com/2008/10/timecode-calculator.html
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def -
Why then does quicktime player show a different length (longer) when it opens the quicktime 23.98 movie exported from the fcp timeline (“current settings”)? Player identifies it correctly as 23.98 but the length is different than that shown in the 23.98 timeline. If I import the quicktime movie back into fcp it will be identified correctly and have the proper length.
jmf
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I wouldn’t trust Quicktime for an accurate length of anything.
How far is it off?
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If 23.98 is non-drop only, why does the calculator you recommend have a “23.98 drop” frame option?
jmf
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If I put 26:46:00 into 23.98 non-drop and switch to 29.97 drop I get a few minutes different, and the same if I put 26:46:00 into 29.97 and change to 23.98 non-drop. The difference I’m seeing is a few seconds at most not minutes.
jmf
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The drop frame option in the calculator is only for making the conversion possible. DF 23.98 does not exist.
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def -
Wouldn’t hurt to study up on the difference between drop frame and nondrop frame timecode.
Here’s a link to start.
https://teched.vt.edu/gcc/HTML/VirtualTextbook/PDFs/AdobeTutorialsPDFs/Premiere/PremiereTimecode.pdf
mark
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[Jeremy Garchow] “How far is it off?”
My guess would be the difference between 24.0 and 23.976 based on the length of the clip.
gary adcock
Studio37
HD & Film Consultation
Post and Production WorkflowsInside look at the IoHD
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Thanks for the homework assignment Mark.
The difference I am seeing is the same difference between non-drop and drop frame.* Looking at my FCP timeline sequence settings, I see the drop option is grayed out in the “Timeline Options” tab. It would appear that the timeline is non-drop frame and quicktime is drop frame. This sounds like a break through but does not explain the frame count difference.
*If I put 28:45;23 as non-drop frame in the the calculator that Shane recommended, and convert to drop frame I get exactly the timing shown by quicktime by one frame (28:47;16).
If this is the problem, the next question is how to change the fcp sequence to drop frame or quicktime to non-drop frame.
jmf
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23.98 is NON-DROP only…I have said this more than once. You cannot, through any Herculean effort, make that format DROP FRAME. No way, no how. And FORGET what QT says…that is not what to go by. Go by what FCP says.
Shane
GETTING ORGANIZED WITH FINAL CUT PRO DVD…don’t miss it.
Read my blog, Little Frog in High Def
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