I have bought a PCM2903C Analog to Digital Converter (ADC) connected to my Ubuntu 20.04 laptop via USB. But why does Sound Settings contain these 2 settings?:
- Digital Input (S/PDIF) - PCM2903C Audio Codec
- Analog Input - PCM2903C Audio Codec
(Plus internal microphone)
In other words: What does "analog input" by USB mean? Isn't all USB input supposed to be digital? That's why I bought a PCM2903C ADC...! The device is only connected by USB, not by SPDIF. Although the PCM2903C does have a SPDIF interface.
I look forward to hear from you.
Addition, Dec. 24th: I am using the PCM2903C ADC in the form of the evaluation board: https://www.ti.com/tool/PCM2903EVM-U