ATEM Mini Pro Upstream and Downstream Keys Explained

On this episode of Create. Consume. Repeat. I’ll explain the differences between the upstream and downstream keyer and their respective limitations. Along with showing you how to hack the downstream key and use it for more than static bugs, logos, and lower thirds.

▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬

0:00 - Intro
0:34 - Upstream and Downstream Keyer Differences
1:05 - Masking Capabilities: Luma, Chroma, Patterns, and Alpha, Oh My!
3:00 - Hyperdeck Mini
4:12 - Downstream Hack
6:17 - Conclusion

[AndreasBodin]

Phenomenal walkthrough. I really like the layer graphics which made it very easy to understand when it became visual.
Keep up the awesome work!

[ttbirds]

Nice video. I conceptualise the layers a bit differently. First there is the base or background layer (L0) which has the main content. Sitting on top of L0 is the upstream key layer (L1). What L1 does depends on whether Chromakey, Lumakey or a DVE (e.g. pip) is selected. L1 will always block/replace part of L0. Sitting on top of L1 is the downstream key layer (L2). L2 will always block/replace part of any of the layers below it.

[ashtonhealan]

I spent hours trying to figure out why my black text was disappearing with OBS projection. Thank you so much for this video! It is a huge bummer that smooth animations are nerfed.

[ShatteringKatana]

Great video, I was unsure about what an upstream keyer was and other channels never got to the point really. Just a word of advice: if you install the Downstream Keyer Plugin for OBS you can unlock that remaining 20% you were talking about with no hacks needed, if I understand what you meant correctly.

[guillaumefournier]

Great video, as usual ! Thank you very much to share your tips ! Happy new year from France !

[gatamayo]

Excuse me, will this be on the mid-term?!?! Another great episode and tutorial. Well done, from one broadcast professional to another.

[frosti]

Would be awesome if you could review OSEE ALL in ONE, wonder if that thing can do same?

[DanKirkwoodTV]

What are your thoughts on using a UltraStudio mini HD instead of a Hyperdeck? if my research is accurate, it allows you to push a fill/key sync output to its 2 SDI ports over Thunderbolt; adding that final 20% of functionality, giving you more interactive graphics (text/browser sources) and let’s you use video sources just like A Hyperdeck, but cheaper

[fearless_tr]

Hey can we add streamlab donation alert or some thing on atem mini pro ?

[MarcelGavalier]

Zou dont need change all your grapics in AE or PS... simply add color filter in OBS to push a little brightnes to +0.01 :) this make black "almost black" but atem stop keying this colour.

[kamileqone]

So maybe raspberry pi 4 instead od hyperdeck?

[FAMEAcademyNY]

Uhhhh Im confused. I wanted to know the difference between upstream key and downstream key. You quickly mentioned it but went into all this other stuff.

[ians.]

This is wrong. Very wrong. USKs are on layers above the Background (PGM Source) which is why it's called Background are the Advanced Panels.