After trying for ages to get a VSTi to route through Skype, I realised that the solution was sitting right there on my desk!
I have a Komplete Audio 6 interface, so by running the VST piano in Cubase, and routing Cubase outputs to inputs 3 and 4, then connecting the interface outputs 3/4 into a spare channel on my audio mixer, routing the mixer outputs into channels 1/2 on the Komplete Audio 6 and selecting the interface for both 'mic' and 'speakers' in Skype, it all worked.
Thanks R0B for the update! Very interesting approach.
However, I am now preferring Zoom.us for this purpose, as it has the ability to stream in stereo, as opposed to Skype's mono.
Yes, I just started using Zoom for the piano lessons I am taking. It looks very powerful compared to Skype. Especially appreciate that it's possible to set Zoom to "preserve original sound"
so that all compression and audio processing is eliminated, and also to turn off the automatic sound level adjustment - being able to turn off these two "features"
seem to have been added for musicians
I believe there are several multi-channel audio interfaces, which have a 'loopback' feature, but in my case, physical cables are doing the job.
Looks like I should find a multichannel audio interface with a loopback if I can. Any suggestions, anyone? I want to be able to route microphone and VST input into Zoom and headphone output out of Zoom, which as you indicated above, is trickier than it sounds to prevent a traffic collision.