Outsite.co has a number of these properties around the world. I'm planning to stay in a couple of them in Mexico this winter. Source: about 1 year ago

Highly recommend outsite.co specially if you are a beginner nomad, great community who help each other and Lisbon community manager Sebastião is great! Source: over 2 years ago

I think https://outsite.co/ is exactly what you're describing. Source: almost 3 years ago

I use Loopback for virtual audio sources. This is super helpful because I create an audio source, which is my microphone and the guest's (guests') audio, and treat it as one input source. I use this audio source as the audio source for live captioning. - Source: dev.to / 24 days ago

No, it's very easy: https://existential.audio/blackhole/ Blackhole is Free and Open Source. Also, Rogue Amoeba has a product called "Loopback". It's not cheap, but it's another alternative: https://rogueamoeba.com/loopback/. - Source: Hacker News / 8 months ago

This is the basic idea, but there are other apps which can make it easier. I prefer using Audio Hijack for the EQ part and sending it to a pass-through device set up in Loopback (which, for this use case, functions the same as BlackHole). Source: 8 months ago

- Loopback 2 by Rogue Ameba to create a pass-thru from the soundboard (Farrago, also by Rogue Ameba) to Skype so everyone can hear me talking in addition to the soundboard on the same line. Source: 11 months ago

At the risk of further complicating matters, you could try combining sources or otherwise experimenting with Loopback, an app that's designed to do all kinds of audio routing stuff. Source: 11 months ago