Been trying to get some bits together so that when I play over Zoom/Skype/etc. I can hear the person on the other end and they can hear my drum sounds and voice (when I want them to) without the tapping from my electronic kit. All for getting lessons. Not yet tested with someone on the other end. By the time I get it working the corona 'mare will be over and I'll be able to get face to face lessons again. Anyway, so far so good...
Ideally would have had a couple of simpler mixers as most of the inputs are currently redundant but this is what seemed best value when I looked.
One box mixes the drum module output and a microphone my end (that I can turn up/down depending on if I need to chat) and feeds it to the sound input on the laptop. The other takes audio from the PC and drum computer too so I can hear both but without the microphone feedback my end. Perhaps if I play with someone else or want to mix more sound sources in, it'll be more useful.
I expect someone will tell me there's a much simpler way. I did try out a few "solutions" from YouTube etc. but they were rubbish, I couldn't hear anything and neither could the other end.