Problem with OBS and my Motu M2 sound hardware

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Xavier_2713

New Member
Hello everyone,

My computer: Macbook pro M1.

I recently bought a MOTU M2 sound card which has two sound inputs where I plug in two different mics and I want to use them as separate tracks on OBS but when I search for my sources I only get one source from my sound card which only takes one mic into account.
I have installed the drive recommended by MOTUS M SERIES SYSTEM EXTENSION but nothing works.

If anyone has any advice, I'd love to hear it.

Thanks in advance!



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mishakim

Member
OBS does not make use of MacOS's CoreAudio capability of having more than two channels per source. I use an M4, so OBS sees only the mixed L/R output of all four input channels. You should see your two channels in the M2 as Left and Right, even though they're really two mono mics.

The only way to access multiple channels beyond L/R is to use other software to mix as you want and then send a stereo channel to OBS, or to create multiple stereo sources. I use SoundDesk, which is a really basic DAW (much simpler than the software that Motu gives you license to), and it includes a MacOS audio driver that lets you pass several different choices of audio signal to other apps (Stereo for OBS, multi-channel for apps that support it), and can also assign each app, as well as each hardware input and output in the Motu, to a separate channel within the DAW's mixer.
 
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