carla : Full featured audio plugin host supporting many audio drivers and plugin formats ( https://kx.studio/Applications:Carla )
catnip : terminal audio visualizer ( https://github.com/noriah/catnip )
catnip-gtk : catnip gtk frontend ( https://github.com/diamondburned/catnip-gtk )
myxer : A modern Volume Mixer for PulseAudio ( https://myxer.aurailus.com/ )
volctl : Volume control for GNU/Linux desktops featuring per-app sliders ( https://buzz.github.io/volctl )
Add an ebuild in portage :
The ebuild is now in the portage tree.
You can also use layman : emerge layman then layman -a moulay
For Paludis use this rsync : rsync://gentoo.zugaina.org/moulay-portage
If you have a problem : ycarus(-at-)zugaina.org