Was working a bit with Voice Activated Commands software. Works great with the simple commands (gear up/down, flaps up/down, etc). It's true worth is when you need to keep your eyes on the action rather than hunting & pecking on a keyboard. HOTAS real estate is dear - there are only so many buttons on stick 'n throttle to assign.
As we know, radio commands were largely borked with the intro of CoD and the last patch shaved 'em down to the ones that work. Not many! Nonetheless, it's difficult to peck on the keyboard and try to keep quarry in sight (or a runway lined up, etc). I found this software (
http://www.dwvac.com/) works great with CoD, easy to program, and is very accurate on the voice recognition aspect.
Have a look at some basic formation commands I issue to my flight of Spits. Although (strangely) CoD does not have a "Break Formation" command, you'll see that CoD's "Space Far" radio command works very well. The only problem is that it takes a string of 5 key presses to issue this command......any 109's will have done their damage on a well-executed bounce before you could realistically take your eye off the screen to look down and bang out the key presses. There's a small pause here between issuing the "break" command and it actually going out, but better than nuthin'! Take a look:
http://vimeo.com/27409250