Questions regarding audio/video options

Hi, its me again. I would be very happy if Admin could give me a basic explanation of these options. Should I use them? I have headphones. Thanks!
mpc-hc https://i.imgur.com/kIr42L4.png
mpc-be https://i.imgur.com/wymitcU.png

About this option, I dont notice any difference with or without it, what is it for?
https://i.imgur.com/gr0NWrK.png
Do I need that option? Most of my Hatsune Miku Magical Mirai concerts are either ~60 GB Blu-ray, or encodes that my friend does https://i.imgur.com/QTy6OfI.png

SilenceStory wrote:mpc-hc https://i.imgur.com/kIr42L4.png

https://en.wikipedia.org/wiki/Crossfeed

mpc-be https://i.imgur.com/wymitcU.png

Don't use that.

https://i.imgur.com/gr0NWrK.png

Leave that as it is.

Thanks!