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HDMI broadcast issues

Chris Vallillo Mar 28, 2016 05:29PM EDT

I am scheduled to do my first Concert window broadcast this Saturday and chose a live concert that was being recorded for later broadcast at the local NPR station since it's a professional studio with great sound. I am planing on using my new macbook pro running the latest version of El Capitan. The plan is to use the board mix as the audio feed and sending that to a Canon XA20 hi def camera rather than using the camera mic, then sending the video and audio signal out of the camera into an Ultrasound Mini recorder (HDMI capture device) and from there by Thunderbolt into the macbook. So far we've had a terrible time getting this to work.

The tech support at Concert Window has not yet responded to my pleas for help and their online information on HDMI broadcasting is weak at best. Has anyone done this before and can they help troubleshoot it? The folks that are doing the video for this are all TV techs from Western Illinois University TV so they certainly aren't amateurs but they aren't familiar with the Concert Window formats. They were able to get this to get this set up to feed a live You Tube test.

Any suggestions would be greatly appreciated!

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Concert Window Support Mar 29, 2016 04:14AM EDT Concert Window Agent

hi Chris, just responded to your email. Glad to hear the test worked with YouTube live. If so, broadcasting to Concert Window will be a cinch. Just create your show on Concert Window, go to your Broadcaster and choose “Broadcast with RTMP”, and copy/paste that RTMP information into your encoder (instead of the YouTube RTMP information). That will send your stream up to Concert Window.

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Chris Vallillo Mar 29, 2016 12:24PM EDT
Thanks very much. I'll have my tech guys try that as well. We did find a work around on the issue on this end as well. The Black Magic Ultrasound Mini recorder did work, we just had to get it to be recognized by the Concert Window software. When we first go into the broadcast page, it wouldn't show the Black Magic input as an option in the inputs drop down box. The trick is to go back into the page a second time. It would then show the Black Magic input. When we clicked on that, it would accept the camera feed, but then freeze the shot. What my tech did then, was unplug the Black Magic thunderbolt input to the Macbook, then re-connect it and go into the broadcast window a third time. At that point, It would recognize and accept the signal. We were successfully able to run a test online and see the broadcast on a different computer.
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Concert Window Support Mar 30, 2016 08:58PM EDT Concert Window Agent

Oh wow, ok, glad that worked. Sounds a bit buggy though. I think using a separate software encoder like Open Broadcaster Software would be more reliable.

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