jackmix: Jackmix (Jack Mixer Application)
jackmix: 
jackmix: Ever struggled with a number of jack applications on your desktop 
jackmix: everyone using its own master volume-fader but not one common place
jackmix: for all the volumes directly accessible?
jackmix: The solution to your problem is JackMix, a mixer app for jack that 
jackmix: looks exactly like the mixer you would use if you had to connect
jackmix: your analog equipment. 
jackmix: 
jackmix: 
jackmix: http://dillenburg.dyndns.org/~arnold/node/71