Is there an option to switch deadbeef to mono?
foobar has a plugin "downmix channels to mono" which I use when wearing headphones (ear kaput)
I'm not aware of such option.
If you set it up for PulseAudio you could apply it to any app https://wiki.archlinux.org/index.php/PulseAudio/Examples#Remap_stereo_to_mono
Setting the whole pulseaudio to mono works, thanks!
this would be a great feature! the Spotify desktop client has it. works well for egregious stereo mixes like Peter, Paul, and Mary where Peter is in one ear, Paul is in another, and Mary is in-between. sounds awful on earbuds in stereo.
This is a crucial feature for a Dance DJ that does not want to have people closer to one speaker listening only to some instruments