A project has been created on OpenAmiga.org following the release of the Mixer sources by Davy Wentzler as opensource to os4depot.
Mixer is a tool for controlling the audio input and output volume of your audio card.
Currently Alex Carmona has uploaded the sources to the openamiga svn and is working with some improvements.
A bug tracker has been opened on OS4Depot for reporting bugs and suggestions:
The original source as release by Davy Wentzler can be found here:
Binary download and snapshots: