Mute audio when out of focus

[mooreye]

Dunno about Windows but on Linux with Wayland, when window is out of focus it still plays audio. Please implement an option to mute it then.

[headb-one]

I also encounter this when running PrBoom-Plus 2.6.2 on my Windows 10 desktop.

I will look into making this a feature, but I would like to iterate that this needs to be a feature that can be toggled.
I can think of several scenarios where I'd prefer for the audio to continue after focusing on another window.