Umix is a program for adjusting sound card volumes and other features in sound card mixers. You can control your volumes, balances, and recording sources flexibly from the command line or with a ncurses user interface with familiar vi/emacs keybindings. Umix supports multiple mixer devices. All settings can be saved and loaded from a file.
The blue bar is in the wrong place!
It takes too much horizontal space. It should be at least optional, or positioned in a 100% wide horizontal bar.