Your right That was my first suggestion. Use the audio system that works and us a single audio codec. My go to right now is Behringer UMC22. I just wasn't sure how determined OP was to using VM. VM is great for internal routing. Do I have to restart the Audio Engine every couple of hours? Sure. Is it hard to program at times? You bet. But do you have to get Skype to talk to OBS and Zoom at the same time? It does the trick. At the end of the day you have to look at your smallest pipe. Live streaming a Church service from a mixer to a phone really can be done with an $5 iRig and a 1/4 inch patch cable. We all want a couple of Blackmagic boxes, 8k cameras and a Wheatstone AIOP system to play around with. But you have to use what we got and slowly replace and change on our way to Broadcasting Shangri La. I also appreciated the "respectfully" Sloth. And thanks for your recommendations page. I've used RE20's most of my career, but I love my 320 at the house.
Voicemeeter rocks! The biggest issue with it is it takes some audio routing knowledge. I use the big guy every day for live broadcasts. With that, you are at a cross roads. All OBS or stream labs needs is 1 feed. If your goal is to take the live service and feed that audio, a simple audio usb codec is all you need. No VM (potato or otherwise) You can run everything though the analog board you have now. Voicemeeter, for me at least, is perfect for routing audio within your computer. Skype to OBS that type of thing. Great for giving conferencing platforms a mix minus. (Live mix, minus themselves, is sent back) If you incorporate video calling into your services then lean on VM. As a networking guy you will love the VBAN option on VM. It is essentially AOIP without spending 6k on a fancy Axia board and system! If you have questions send me a message, I love audio problems. Been solving them for years now.