Routing Black Magic audio in OBS 26.0.2

[roar]

Hello,

I hope someone can help me. I am streaming using OBS. The video card is a BM mini recorder firmware version 11.5.
It is for a live sports event. I have commentary on 1&2 and clean feed on 3&4. I only want to send 3&4 to the stream.
In advanced audio properties there is tracks 1-6. If I only select 3&4 the stream goes mute.
In settings > output > streaming > audio track I selected track three but that did not change anything.
In the video card properties at the cog at the audio metering, I can select none, 2ch, 2.1ch, 4ch etc.....
It was selected 2ch. I tried changing it to 4ch and then to deselect audio 1&2 in the advanced audio properties by the audio meters but that did not help either
I am still hearing commentary on the stream.

Thank you in advance for any help

Rory

 

[roar]

Is there a way to dictate when tracks get streamed in and SDI embedded source?
Or is it just locked to 1&2?

 

[roar]

Someone much smarter than me pointed me to the rematrix filter plugin.
https://github.com/andersama/rematrix-filter/releases

Download the zip and extract. Drop the files and folders in the appropriate places.
Go to File > Settings > Audio > Channels and change it to the amount of channels your hardware can support. In my case it was 8 channels so I changed it to 7.1ch.

Restart the software.
Click the cog beside the audio device you want to affect in the Audio Mixer, select filters.
Click the + sign on Audio/Video filters and add the rematrix filter.
You may need to reboot the computer at this point. I did on one encoder and not on another.
If rebooted go cog beside audio device you want to affect in the Audio Mixer, select Rematrix in filters.
This should allow you to map and/or mute which ever channels you so wish.
In my case I mapped source channel 3&4 to target channel 1&2 and muted the other six target channels.

Anyway, I hope someone finds this helpful.

Rory