- Posts: 2
- Joined: Sat Sep 21, 2019 4:27 am
- Real Name: Rob Dalton
Our church adds lower thirds for names and lyrics overlaid on the live camera feeds using the ATEM chroma key.
Our setup: In ProPresenter all slides have a uniform blue background, we use a template in Pro to make all of our text white and a specific size at the bottom of the screen, with a semi-transparent black banner behind it. We then convert the HDMI output from the ProPresenter Mac over to SDI (we are using the ATEM 4K, so no HDMI inputs) and send into the ATEM. Then, within the ATEM we set that particular input to be a chroma key and sample the blue color that is coming out of Pro. From there, when we enable the key, the lower third text looks perfect overlaid on the video (there is no blue, and the black banner correctly appears semi-transparent, which helps to keep the white text from blending into the background video).
There are other, better, ways to accomplish this, but this is the best method we have found without any additional equipment and with a single output from the Mac. An alternative would be to have two outputs (one for Key and one for Fill), but that requires additional BMD equipment between the computer and the ATEM.
I hope that helps to answer your question.
Tim