Question / Help OBS with Blackmagic ATEM + Audio mixer

DiggityDan

New Member
Hey guys

So I'm looking at putting together a livestreaming rig that I can feed multiple cameras into. My plan is to feed 3-4 cameras via HDMI into a Blackmagic ATEM switcher, and have audio come in seperately using a Mackie 8 channel USB mixer. I want to add these both to OBS on a laptop as video and audio sources respectively. Then use OBS to stream to Facebook, Youtube etc and overlay logos and/or text. In theory this should work.

Now, before I buy the equipment to kick this off I wanted to see if you guys had suggestions on how this could work better?

Regarding feeding the ATEM switcher into the laptop... I've looked at using something like a HDMI capture card like the Blackmagic Intensity Shuttle (the USB3 version), or perhaps bypassing that and going into a Blackmagic Web Presenter (I think this would make the video a bit more 'stream' friendly).

Regarding the USB mixer, will this work similar to any other USB mixer being fed into OBS? I recall having issues with my Behringer Q802 USB and getting just one microphone to work correctly (with monitoring). If I use a Mackie 8 channel USB desk feeding all 8 channels into the stream, would this actually work?

I had read that another piece of (paid) software could take the USB H264 feed from the ATEM switcher and make it useable without the need for a capture card... but I can't really find any more info or videos on that.

Regarding audio and video sync... I've read there is a way to change the audio sync with video, where do I find these settings?

Thanks guys, any advice and help would be appreciated.
 

Ken Balme

New Member
Hi Dan I'd stay away from the web presenter. Recent experience trying to get audio from cams to switcher, web presenter via hdmi to streaming laptop all fed through OBS. Video is prestine audio is low and muffled with peaking. WP has an internal audio embedder that takes all audio sources and tries to blend them. We are now trying to bypass the WP. completely for audio while still using OBS as our software encoder.
 
Hi, did you solve it? I have the same problem, I can not sync the audio with the capture image with Blackmagic Intensity shuttle. i try config audio in 25ms 100ms 200ms 500ms, etc and nothing, the audio no sync.
 
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