This is one of 3 problems:
1) The sound card mixer source is set
incorrectly. When you run the program aumix, there needs to be an "R"
beside the LINE entry.
I don't seem to be able to get this to work , can you show me the command line.
2) The IGAIN level in aumix is set too low.
This is set very high right now it was the first thing I tried.
3) The input of the sound card has been damaged by a static surge or other issue.
If this is the case will the system require to be sent back for repairs?
I have seen all 3 in the past.