Input sound through S/PDIF line in port on Linux Mint
Short guide how to start recording through S/PDIF line in digital input using Sandberg USB Sound Box 7.1 on Linux Mint.
Audio line-in unmute in Linux Mint
Audio line-in is disabled in Linux Mint by default, here is quick solution to unmute this socket.
Installing surround sound card on Linux: Sandberg USB Sound Box 7.1
Setting up Sandberg USB Sound Box 7.1 on Linux Mint. Procedure should be similar to any surround sound card installation on Linux using PulseAudio.