Using DeckLink external keying

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Using DeckLink external keying

PostFri Feb 16, 2018 4:04 pm

We have a DeckLink Studio 4K, which has one HD SDI output on the card and one SD SDI output on the multi-connector adapter. We want to use this DeckLink for lower thirds, so we need fill/key. The website says this model supports external keying. Is it possible to use the HD output for fill and SD for key?

In other words, I have the HD output going directly to switcher and SD going through teranex (to upscale to 4K). Will this work to make it transparent and what should I set on the board (2 M/E) to connect fill/key?

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