Audio Balance

[gestanks]

Hello, is there a command where I can set the left and right volume settings differently? I need this in my Pyqt5 application, using leftvolume and rightvolume instead of Mastervolume.

[TJ-59]

It has been added from #87, but I think it is "per session", not "per device".
You could probably still use it that way with a bit of gymnastics for each session, including the newly created sessions caught with AudioSessionNotification's on_session_created.