Production Switchers

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  • 1.  MacBook with Qlab as a source

    Posted 06-12-2025 11:41

    Hi All, 

    Sorry newbie post here. I'm directing a show and we're using a MacBook running Qlab to playback a couple videos and some graphics. The signal is coming out of the MacBook as HDMI and into a BMD HDMI to SDI converter. Output from computer is coming in to Ultirx @ 1080p60b. Ultirx program is set to 1080i59.94.

    The signal looks fine on the input monitor but in preview and program windows there is an obvious glitch, rolling, color, and framerate issue. Is there a way to cross convert in the switcher?

    Any insight is appreciated. Thanks. 

    R



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    Robb Albrecht
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  • 2.  RE: MacBook with Qlab as a source

    Posted 06-12-2025 11:43

    The Router will handle and pass through as is.

    You don't tell us what switcher it is though ??  Is the switcher in the Ultrix? if so is it a Carbonite or an Acuity?



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    Les O'Reilly
    Director - Switcher Product Management
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    Original Message


  • 3.  RE: MacBook with Qlab as a source

    Posted 06-12-2025 11:49

    Hi Les, 

    We got it figured out. Thanks for the reply. There's a lot to this system and I'm looking forward to learning it. 

    Cheers,



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    Robb Albrecht
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    Original Message


  • 4.  RE: MacBook with Qlab as a source

    Posted 06-12-2025 15:22
    No you’ll need a scaler instead of the bmd converter. Something like a decimator md-hx or a bmd decklink card or uktra studio. The frame syncs internally will not up convert or will not convert from interlaced to progressive or vice versa.
    Sent from my iPhone


    Original Message