This is a binary version of the graphical control panel for the ZA2
under linux. It runs only with X11 and needs the qt library (version
1.44).  A source distribution will follow as soon as possible
(actually I've still some problems with qt).

Short summary of the functions:
Play mode:
 * normal: normal output
 * swap: swapped channels
 * difference: difference output, not implemented yet (if anyone needs
 it, tell me, it's a matter of five minutes to implement it)
Changing the play mode usually causes clicks in the output

Input:
 * Toslink (fiber optic)
 * Coaxial
 * AES/EBU
Changing inputs in principle causes no clicks, except if you are
recording, since the ZA2 will have to reclock on the new source.

Output:
 * SCMS: toggles SCMS
 * EMPH: toggles Emphasis
 * AES/EBU: switches to AES/EBU output (aka professional mode), in
 AES/EBU mode, we still send SCMS and emphasis although they are not
 defined in prof mode
Changing output mode usually clicks. Additionaly, HIFI-equipment will
change its operation mode (and eventually click, too) to interpret the
new signals.

Buttons:
 * Start ID: starts IDs
 * Resample: can be used to resample through the ZA2, it blocks
 /dev/dsp and switches the output to 44100 Hz (thus loading the
 approbriate filter). It's a toggle button, when you finished your
 resampling jobs click it a second time to free /dev/dsp.
 * Quit: I won't say anything about it ...
Start ID makes the output click.

Volume: 
Slider to change analog out volume !! Clicks output and is useless if
you use only digital equipment.
