Hi Andy,
I just tried the Music Edition fork of obs studio (16 channels!)
and it got audio from flame.
I had looked at the NDI analysis tool and saw this:
NDI version : 4.6.2.0
15:41:30.854: Video receiver creation succeeded.
15:41:30.854: Audio receiver creation succeeded.
15:41:30.875: Audio connection opened.
15:41:30.881: Tally program=false preview=false
15:41:30.910: Audio format changed. 48000Hz, codec=NewTek Mode 0, 16 channels.
and on the obs studio forums, one person said that obs wasn’t able to select channels from multichannel
thx.