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Activity Forums AJA Video Systems Kona 3 HD to SD convert weirdness

  • Kona 3 HD to SD convert weirdness

    Posted by Ken Conrad on February 23, 2011 at 1:11 am

    Hey all, I ran into something that I have not experienced before because I mostly work in HD.

    I have to down convert 1920x1080i 29.97 to 720x480i 29.97 Letterbox for Digibeta output. What I am seeing is that on the SDI out down convert is that the image is vertically “squashed” compared to the original. What is odd is that the component down convert looks correct.

    Has anyone seen this? there may be a setting that I am not seeing to fix this. I am not at the studio at the moment but I can upload some images in the morning if need be.

    I am running FCP 7.03 (Sequence settings: 1920x1080i 29.97, Prores422(hq), Kona 3 8.1.1. (settings: Framebuffer 1080i29.97 convert to 525i29.97)

    thanks.
    ken

    Paul Jay replied 15 years, 2 months ago 3 Members · 6 Replies
  • 6 Replies
  • Jeremy Garchow

    February 23, 2011 at 2:56 am

    How are you monitoring?

  • Ken Conrad

    February 23, 2011 at 3:04 am

    SDI on a Sony broadcast monitor and also on a 1080 p projector
    Componet on Sony broadcast monitor also on the projector

  • Paul Jay

    February 23, 2011 at 9:01 am

    Video playback should be HD from FCP.

    In AJA control panel.
    Primary HD
    Secondary SD ( connect digibeta to this SDI output)

    Then downconvert.

    It seems like you have a SD output setting on your Video playback settings.
    They should be HD in this scenario.

  • Ken Conrad

    February 23, 2011 at 5:03 pm

    FCP is outputting at HD (1920x1080i 29,97) and i have the SDI out to the monitor on Secondary.

    here is a link with images so you can see what i am seeing and my settings.

    https://kenconrad.com/images/kona3.html

    on the component out down convert it is correct

  • Jeremy Garchow

    February 23, 2011 at 5:56 pm

    [Ken Conrad] “here is a link with images so you can see what i am seeing and my settings.”

    Looks like your monitor has the 16×9 setting punched on it (or the widescreen mode or something).

    Jeremy

  • Paul Jay

    February 28, 2011 at 9:50 am

    Your settings look fine.
    Call AJA. They are great guys and will help you.

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