Voice commands on Mac

Has anyone tried using voice commands to interact with DS?  Is it even possible?  I cannot seem to find out whether voice command recognition on a mac can be used in any program or only those running Apple scripts.

It would be so handy to use voice commands in DS.  It would not only cut down on having to use the keyboard, it would also enable palettes to be closed so they don't clutter the screen.  Most of the work would then be done with a combination of mouse and voice.

My iMac is current and runs Mountain Lion.  I am using the latest version of DS.