I have a small article on the tool I used to move a tank via voice commands. http://boxhacker.com/blog/2011/11/22/speech-recognition-for-net/[^] Part 2 explains how I converted the speech into commands (parsing) and such: http://boxhacker.com/blog/2011/11/25/voice-parsing/[^] Its ok if you have time to train the speech recognition software, but out of the box stuff would require something more powerful. - Could help :-D