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  1. 13th Jan 2021 19:40 #1
    Waloshin
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    Hello I was wondering does the AJA Kona LHi support 720*480i 29.97? Also is there a way to tell the AJA Control Room v15.5 capture software to stop capturing after a certain amount of time?

    Thanks
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  2. 13th Jan 2021 20:00 #2
    ron spencer
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    Seems like it does not support it:

    https://www.aja.com/products/kona-lhi#techspecs
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  3. 13th Jan 2021 21:07 #3
    Waloshin
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    Seems like 525i is the same as 480i.
    https://en.m.wikipedia.org/wiki/480i

    Is 525i 59.94 just 480i 29.97?
    Last edited by Waloshin; 13th Jan 2021 at 21:21.
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  4. 14th Jan 2021 00:24 #4
    dellsam34
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    Yes, Interlaced video counts the fields, 60 (59.94) fields per second is 30 (29.97) full frames per second.
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  5. 14th Jan 2021 08:59 #5
    jagabo
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    Yes, 480i and 525i are the same thing. The analog signal is 525i but only about 480 lines contain picture content and are captured. Most of the other lines are just there for analog sync.

    Here's a frame from a full 525 line capture:

    Image
    [Attachment 56785 - Click to enlarge]

    Most of those black/white dots near the top of the frame are from a broadcaster put a station logo in that portion of the signal. That area would normally be black and it wouldn't be visible on a normal TV.
    Last edited by jagabo; 14th Jan 2021 at 10:38.
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  6. 14th Jan 2021 11:01 #6
    Waloshin
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    Thank you everyone for the quick responses and education.
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