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Getting a 29.97 timecode on a 29.97 video

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Yan Desjardins
Getting a 29.97 timecode on a 29.97 video
on Sep 18, 2018 at 6:58:53 pm

Hello,

I'm encountering a problem I've never seen before. I have a 29.97fps video, but the timecode I overlay on it is of 30fps. I can't change the timecode frame rate and, therefore, can't find a way to generate an accurate timecode.

Any of you know what's happening?


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 18, 2018 at 8:23:01 pm
Last Edited By Oliver Peters on Sep 18, 2018 at 8:23:14 pm

How do you know that it is 30.0 and not 29.97NDF?

- Oliver

Oliver Peters - oliverpeters.com


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:40:24 am

Looking at it frame by frame, the timecode goes up by 01 frame at a time.


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Jeremy Garchow
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:46:34 am

That’s normal unless you are speeding up footage.


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:48:10 am

Agreed. This is normal. Yan, what were you expecting to see?

- Oliver

Oliver Peters - oliverpeters.com


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 11:50:41 am

I need to see a TCBI which reflects the 29.97 nature of the video. How do I go about getting that?


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Jeremy Garchow
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 11:58:10 am

You have it.

Why do you need the frames to not count 1 by 1?

I’m confused.


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:18:40 pm

I'm sorry if I'm not asking the proper questions. I'm the one who's confused. I can't afford for you to be, too!

I need the TCBI to be in DF, as the movie is in DF. The TCBI is in NDF.


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:32:47 pm

[Yan Desjardins] "I need the TCBI to be in DF, as the movie is in DF. The TCBI is in NDF."

Aah, OK. That makes more sense. What is your project setting? DF or NDF?

- Oliver

Oliver Peters - oliverpeters.com


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 12:39:41 pm

The original clip is in DF. In FCP, I just open the clip and lay the timecode on it.


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 2:11:31 pm

[Yan Desjardins] "The original clip is in DF. In FCP, I just open the clip and lay the timecode on it."

In FCPX, the timeline's timecode display and the plug-in should both display the numbers with a semicolon in the divider between seconds and frames, if the clip is DF. To double-check, go to the 2 min. mark. The count should change from 59;29 to 00;02 if everything is correct. Two frames should be dropped at each minute rollover, except every tenth minute. Are you not seeing that? If not, do any of the timecode displays show semicolons?

- Oliver

Oliver Peters - oliverpeters.com


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 2:22:54 pm

Thanks for helping me out Oliver. And thanks for your patience.

The display is colon, not semicolon. As is the timecode.


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 2:39:28 pm

[Yan Desjardins] "The display is colon, not semicolon. As is the timecode."

If you are seeing only colons, then your timecode is non-drop frame. Why do you think the clip is drop frame?

In order to create a DF version, you will need to edit the clip to a new project (sequence) with DF settings and export a new master file. That will become your new DF version of the clip.

- Oliver

Oliver Peters - oliverpeters.com


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Yan Desjardins
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 7:23:18 pm

"Why do you think the clip is drop frame?"

VLC and a subtitling app both say that the original video is DF. I just need for the timecode to reflect this.


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 19, 2018 at 7:33:55 pm

[Yan Desjardins] "VLC and a subtitling app both say that the original video is DF."

Maybe those apps are both wrong. Often 29.97 is labelled incorrectly as DF by applications.

- Oliver

Oliver Peters - oliverpeters.com


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Oliver Peters
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 20, 2018 at 12:10:48 am

I think part of the confusion is that it's unlikely that the other apps are actually reading TC. I don't believe VLC does. They are only looking at the video frame rate. It's common for video programs to incorrectly label 29.97 video as DF as a form of shorthand. That's because they consider 30.0 as NDF since that duration measurement matches clock time. In reality, video is neither DF nor NDF. Those terms purely a function of the counting sequence in the TC numbers. So unless they are specifically identifying the DF value as being timecode, it's incorrect and meaningless.

- Oliver

Oliver Peters - oliverpeters.com


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Shane Ross
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 20, 2018 at 12:27:09 am

In DF timecode, the numbers will go up one frame at a time, just like NDF. The only difference is that one frame number will be dropped every minute, at the top of the minute (so from :29 to :01...dropping the :00)...except every 10th minute. But all the rest of the frame number counting will go up normally.

If your sequence needs to be DF, and not NDF, you need to go to the sequence in the bin, locate the START column, and change the last separator from colon to semi-colon. THAT will make your sequence drop frame, and then the TC Reader will display it as such.

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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Shane Ross
Re: Getting a 29.97 timecode on a 29.97 video
on Sep 20, 2018 at 12:28:08 am

GAH! I thought I was in the Avid forum...that is an Avid response, but I can't see how to edit or delete my post....

sorry

Shane
Little Frog Post
Read my blog, Little Frog in High Def


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