Pulseaudio 5.1 and 7.1 surround sound simulation with stereo hardware

That is a very quick post I am only writing because there’s just not enough information about this topic.

While tinkering with Cyberpunk 77 under wine/proton I have discovered the game only outputs sound in 7.1 format, even if stereo headphones are connected.

Sound is always output in 7.1 format even when headphones or 2.1 speakers are connected. You can check it here: Control Panel - Sound - Speakers (select from the list) - Properties - Levels - Play Control (Balance) - and you will see a list of all channels.

Since for Windows user emulating 7.1 sound via some third-party software helped, I decided to try to reproduce the same thing under Linux.

Doing so with pulseaudio was a challenge, but unfortunately did not help at all. Maybe it will be useful for something else.