I follow the instruction in this question: How to split 7.1 soundcard outputs to 4 stereo outs with ALSA
I am able to use the first three "channels" for my multiroom system.
However the last one did not work. (segmentation fault when I try aplay)
My sound card is the embedded one on the Asus ASROCK J4105ITX
According to the documentation for a 7.1 surround sound output the line in has to be "converted" to a output.
Can I do that through the asound.conf file? (May be my bindings numbers are not the correct one)
Bindings: 0 1 are the green connector (front speakers)
2 3 are the black connector (rear speakers)
4 5 are the pink connector (microphone!!!!!!!)
6 7 are not working (connector ???????)
I was expecting to use the Orange connector (center/bass speaker) and the line in (light blue) connector instead of the microphone