Ambient sound slider not actually cutting ambient sounds and the annoyance of footsteps

Basically the ambient slider set to 0 I still hear plenty of background buzzing and humming like the portal in villages. Ambient sound should include all of those noises. Just stay near a portal and play with the slider, you'll see.

It also annoys me to no end that I can't quiet/mute footsteps of other players or even my characters footsteps. IT's just unnecessary noise. There should at least be a config file.