I come this way net on an idea and that will be followed as: everyone has sound participants, at this moment if you listen with 5.1 or 7.1 you hear that there 2 sound participants work.
that doesnot can be regulated for: 2.0 / 2.1, 4.0 / 4.1, 5.1, 7.1 and you can change that in "chane advanced settings" or other option...
what think there do you there of? if this is possible.