I've wondered now and then about sound desks and whether there could be a higher-level control imposed on them. Because there are at least three or four points where a particular microphone could be muted on the way to some speakers, it can take a few seconds to figure out why there's no sound being produced. In a live performance, that can sound pretty bad. So what if there was a higher level of control that allowed you to specify that a particular microphone should now be making sound (or not) and have the specific details taken care of automatically? While sound desks as I know them (which is not very well) are quite versatile enough to handle any setup you throw at them, they always /look/ the same. I'm imagining a big touch screen with a diagram of the auditorium on it, with various appropriate controls to set levels and indicators to show what's happening right now.
Mokalus of Borg
PS - That kind of sound desk would be pretty expensive, though.
PPS - If they exist, that's why I haven't seen one yet.