Audio/reclocking USB card with Raspberry Pi Compute Module 4?

Hi there -

I have been wondering if it might be possible to use a PCIe USB card with Volumio, like the Pink Faun, SoTM or JCAT cards which offer lower noise & reclocked USB audio out. The Waveshare compute module 4 seems like a possible way to use a PCIe card with a RPI, but would it actually work?

A setup could look something like this:

  • Raspberry Pi Compute Module 4
  • Waveshare Compute Module 4 IO Board, to gain a PCIe slot
  • Pink Faun, SoTM or JCAT PCIe USB card for reclocked USB audio out

Did anyone go down this rabbit hole?