when you are watching a movie from the 1920's or old shows from the 50's the sound (in stereo) sucks. going left channel only or right channel only is useless, reverse stereo just as useless, and MONO is gone now with the new version.
Can you bring back FULL mono, meaning take whatever is left and whatever is right and put part of the left to the right and part of the right to the left?
That way you can hear both channels on both left and right.
And I know I have read about this on other posts, but the real issue is that it used to exist and now it does not.
Most people do not have soundcards or onboard sound mixers that can do this, just like most people would prefer to use the vlc video brightness feature, and indeed may not even know how to go to their video adapter to up the brightness with hardware because their monitor is already full brightness.
or maybe it would be easier if you make into the preferences a checkbox with mono audio output (like there is a checkbox for grayscale only video output)