Totally new to the audio scene with a quick question that I'm having trouble finding an answer to.
If I have were to buy a soundcard that "supports 7.1", like the Asus ROG Phoebus, then connected a set of headphones (Sennheiser 598's are what I'm looking at) that are stereo, I would be able to play 7.1 audio sources with virtual surround through those headphones, right?
In addition, what's the purpose of upmixing 2.0 to 5.1 or 5.1 to 7.1? If the sound was only recorded in two channels, how can it "gain" data to play in surround? Doesn't seem like it'd add anything dimension-wise.
Just a little confused by how up/downmixing through 2.0/5.1/7.1 works and what is and isn't ok. Thanks a ton for the help!