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capture 16/9 material that enters as 4/3

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Jan Van Hove
capture 16/9 material that enters as 4/3
on Jun 30, 2016 at 10:32:16 am

I'm trying to capture xdcam material filmed in 16/9 and avids makes 4/3 of it.
Of course I could reformat whith frame flex but why is he doing this and how can I avoid this.
Anyone?


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Michael Phillips
Re: capture 16/9 material that enters as 4/3
on Jul 1, 2016 at 11:33:22 pm

Two things:

1. Project is 16:9?
2. Source Settings are set to 4:3, center crop, etc.?


Michael


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Scott Freeman
Source-Files 16:9 material that enters as 4:3
on Jul 2, 2016 at 3:12:13 am
Last Edited By Scott Freeman on Jul 2, 2016 at 4:03:44 am

Perchance, are these standard definition source-files?

If not, then I would love to know what your width and height is for those source-files in question?


I am hoping that maybe I can help shine some light on this subject matter.

For some standard definition source-files, I have noticed that Avid Media Composer might choose an undesirable aspect ratio upon ingest into the bin. The 'Pixel Aspect Ratio' is an undesirable result. Updating the master clip 'Image Aspect Ratio' updates the 'Pixel Aspect Ratio'.


When this happens for master clips in the bin:

Step 1: In the bin bring up the column heading 'Image Aspect Ratio'

Step 2: Select the master clips in the bin

Step 3: Click under 'Image Aspect Ratio' and select the desired 'Image Aspect Ratio'

Done!



This is a non-destructive selection and updates the master clips instantly.


The user can update all the clips in the bin at once by selecting all master clips in the bin and then updating the 'Image Aspect Ratio' with the desired selection.

If a sequence is already pointing to these master clips with the undesirable aspect ratio. Once the master clips in the bin are updated with desired aspect ratio, the user would need to use the 'Refresh Sequence' command.


I have wondered if perchance Avid is choosing an undesirable selection for standard definition source-files that use non-square pixels. Standard definition non-square pixels examples 720x486 and 720x480.


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Jan Van Hove
Re: Source-Files 16:9 material that enters as 4:3
on Jul 4, 2016 at 8:02:13 am

They are standard definition files filmed in 16/9 I'm trying to capture in a HD project .
After capture they are pillarboxed, so I have a 4/3 image with black bars.

And Avid under the Image Aspect Ratio column dutifuly gives me 16/9.
And the problem persists.
When I import them or medialink to them there is no problem.
But in this case I would prefer to capture them.


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John Pale
Re: Source-Files 16:9 material that enters as 4:3
on Jul 4, 2016 at 1:37:08 pm

I think Scott has this right...I've seen this before.

What is being reported as the pixel aspect ratio(you may have to make the appropriate column visible)


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Jan Van Hove
Re: Source-Files 16:9 material that enters as 4:3
on Jul 5, 2016 at 10:35:29 am

Thank's a lot.
This indeed does the trick.


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Scott Freeman
also to note newer version Link settings under Link tab SD specific for 16:9 or 4:3
on Jul 6, 2016 at 2:11:50 am
Last Edited By Scott Freeman on Jul 6, 2016 at 6:22:24 am

also to note newer version Link settings under Link tab SD specific for 16:9 or 4:3

Project Window > Settings Tab > link settings:

Link Settings Window > Link Options Tab > 5th tear down

and specify 'Always use 16:9 aspect ratio for SD clips'


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