Latest post Wed, Nov 12 2008 11:06 AM by freshstyles. 4 replies.
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  • Thu, Oct 30 2008 5:23 PM

    Artifacts at the top of the screen???

     Hi All,

    My workflow is as follows:

    1 Edit in Xpress Pro

    2 Export as QT Ref file

    3 Code for DVD in Canopus Procoder

    I have just been working on a project with mixed aspects and sources. All sources have been captured from DVCAM, some were rushes, some transfers from Digibeta, some dubs from masters or rushes.

    The delivery aspect was 4:3 and some of the sources were 16:9, so I decided to use resize to letterbox these clips. The problem I am having is that on exporting, SOME of the letterboxed clips have artifacts at the top of the screen. The amount of artifacts seems to be specific to the source and consistent, but they are not present on all the letterboxed clips. They are only about 6 pixels high (from the top of the screen down), but as this project may be viewed via a projector or on a computer - I really could do with getting rid of them!

    On playback in Avid it is not possible to see if any artifacts will appear, but as soon as I export they are visible.

    Any work-arounds or suggestions gratefully accepted!!!

     

    Cheers!

  • Thu, Oct 30 2008 6:17 PM In reply to

    Re: Artifacts at the top of the screen???

    You're either seeing the CC info in Line21 or perhaps the Blanking.  A quick trick I use for things going out to the web (full frame) is to drop a Resize effect and increase the size of the video to about 103.  (3% increase)

    Kenton VanNatten | Avid Editor (for hire)

    "I am not obsessed... I'm detail-oriented"

  • Thu, Oct 30 2008 6:17 PM In reply to

    • BLKDOG
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    Re: Artifacts at the top of the screen???

     Could you tell us what version of software you are using?

    If you do a video mixdown before exporting, do you still get the artifacts?

    Project Manager, Avid Professional Services - Americas [view my complete system specs]

    In agreement, Unity. In Disagreement, Discussion. In all things, Charity.


  • Mon, Nov 3 2008 4:01 PM In reply to

    Re: Artifacts at the top of the screen???

    Hi Both - thanks for coming back to me.

    I'm using version 4.6.

    I'll give both suggestions a go and get back to you

    Cheers

     

  • Wed, Nov 12 2008 11:06 AM In reply to

    Re: Artifacts at the top of the screen???

    Hello Both,

    Thanks for the advice. I still get the same issues with a video mixdown. The 103% resize seems to have done the trick - no more artifacts!

    Cheers!

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