Dockapp mixer for OSS or ALSA.

Allows toggling record source, muting individual channels, adjusting volume and balance,
all in a compact dockapp size, with TV-like on-screen-display for volume levels.
Supports mousewheel to adjust current channel volume, and can be controlled remotely
with SIGUSR1 / SIGUSR2 to adjust the volume, too.
Can use a configuration file to control some of the features.