48kHz 8i80 USB Audio

I just emailed thesycon to put this project on their radar and ask for their contribution. If anyone has the knowledge to finally put the nail in this Wishlist item they definitely have it. They've written a multichannel audio driver for the XMOS - among many other drivers for all different types of systems. They distribute a free version but sell licenses for commercial projects. Their work can be viewed at https://www.thesycon.de/. Fingers crossed that they can see value in helping out this project with their extensive USB Audio knowledge.
Great thanks Jay!

On my side I managed to get it "working" with 4 channels, but I'm getting some crackling which I haven't figured out yet.

So if anyone more experienced would like to spend one hour debugging with me, that would be much appreciated :)
Hallo, ich möchte einen Aufbau mit Teensy 4.0 entwerfen der ein 4 Audio Line Input, Stereo Output und Midi Input besitzt. Das ganze sollte mit einem Iphone Funktionieren. Ist sowas möglich?