Can't get system audio and external mic to work

[matthwho]

Hi! I'm trying to screen-record so that I can do a VoiceOver and demonstrate something in a webpage at the same time. I've downloaded the latest and reinstalled it, and I've set it up according to instructions. I'm able to screen-record either the system audio or the external mic (through a USB preamp) but not both.

If I select "Blackhole 2ch" for the microphone in the screen-record settings, I hear the system audio only. If I select "Volt 176" (my usb preamp) I hear th mic only.

My setups are screenshotted below. Any help is appreciated!

[matthwho]

Follow up: I'm able to get this all to work using OBS (which I just downloaded). Mic works and system audio works via the multi-output device, so I guess this is a workaround. But it'd be nice if it worked on screen capture as well.

[devinroth]

What you described is a limit of screen capture.  The solution is to use some software to mix mic and BlackHole. Like you stated OBS does the trick.

…

On Jan 28, 2023, 6:04 PM -0800, matthwho ***@***.***>, wrote: Follow up: I'm able to get this all to work using OBS (which I just downloaded). Mic works and system audio works via the multi-output device, so I guess this is a workaround. But it'd be nice if it worked on screen capture as well. — Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you are subscribed to this thread.Message ID: ***@***.***>

[matthwho]

Thank you!

[kadavy]

I have pretty much the same set up and same problem, only I'm not trying to capture a screen recording – I'm simply trying to record my system audio while recording my microphone input. I've tried with Hindenberg, Audacity, and Quicktime. Are there limitations for these apps as well?

[devinroth]

They will capture the mic but not the system audio. If you're on Ventura try this new app I'm building called Dipper. It's in alpha but should do the trick for you. https://discord.gg/pmWKPcxhgt

[kadavy]

Thanks! I think I fixed it by setting up both a Multi-Output Device and an Aggregate Device. I have to use software that supports 4 channels though, to work with my two-channel mixer. Audacity does.