[PROBLEM] Popping sound during playback

[CallMeMike]

The issue is related to the same bus shared by USB and eth0 on the pi................ snip .........................

1. @leicray is using a RPi4
2. On RPi4 the USB host controller is connected directly to the SoC via a PCIe bus, while the Ethernet Controller is built directly into the SoC (unlike all the previous RPi models)

      https://www.raspberrypi.org/documentatio.../README.md