pi3 sd card vs Pi4 wifi or ethernet sq

[Jandu]

Have a read on the following, it is about USB's way of transmitting digital info and audio signal. 



https://www.edn.com/fundamentals-of-usb-audio/

USB errors are fairly common, there is a good discussion:

https://www.head-fi.org/threads/new-audi...2/page-485