Question / Help Black Magic UltraStudio Mini Recorder - input display source

[amiller424]

We recently started streaming our Church services online. During parts of the service, I would like to transition to a duplicate of the main screen. We use a Black Magic Ultra Studio Mini Recorder with our camera. We purchased a second one to use with an output from our main display but cannot get it to recognize and 'duplicate' the screen. Can anyone assist with displaying an external display as a source? Thank you!

 

[Harold]

If the main screen is on the same computer you're streaming from, you don't need the second mini recorder for it. Just add a display capture source.

 

[amiller424]

If the main screen is on the same computer you're streaming from, you don't need the second mini recorder for it. Just add a display capture source.

Thank you for replying, we are using OBS on a different computer than the one running the projectors.

 

[Harold]

Have you tried using an HDMI splitter from the primary display on the source computer instead of duplicating the video to a second output port on it?

 

[SPCoast]

We've done this using several different methods:

1) If both systems are on the same fast network:

• install NewTek's NDI tools on the "primary" computer,
• use their "NDI Scan Converter" to capture the display screen
• Install the OBS NDI support extension
• Set up a scene with the NDI Source in OBS

2) if no network is available

• Use a Decimator MD-HX as a HDMI splitter and SDI relay between the primary computer and the primary display
• Run a SDI coax cable to the OBS computer
• Use a mini recorder (or quad deck link or ...) to bring in the second stream into a scene...

3) We've tried #2 above, but using BMI's HDMI-SDI box, both with and without a HDMI splitter instead of the Decimator, and ran into hard to reproduce/fix issues with HDMI computer monitor timing sometimes not being accepted by the BMI gear. The symptom was no video being "seen" by the mini recorder... Sometimes the order of powering-on the dongles mattered, other times cable disconnects during a service caused things to stop responding, even after reconnection. When it worked, it just worked - but swapping a laptop or changing screen resolutions or a particularly book-thumping sermon, and poof! :-)