I have a SoundBlaster Z (5.1 audio). I have 2 monitor type speakers and 3 surround type speakers and a sub connected. I wish to play stereo music via MusicBee. If I use MB in stereo mode my sub has no audio. This is a problem with the sound card as it does not have 2.1 audio.
To get audio out my sub I can set the sound card to 5.1 and use MB's "upmix stereo to 5.1" with the surround speakers switched off. This works and I effectively have 2.1 audio.
I want to know if the upmix setting changes the audio in any way?
Does it only route the audio to the other speakers?