To wake lipsurf up with a spoken command "Hey lipsurf", you need to have premium. What's the point..just useless.
VoiceAttack - VoiceAttack will take commands that you speak into your microphone
Express Dictate Digital Dictation Software - Express Dictate software is a voice recording program that works like a dictaphone.
VoiceBot - Take command of your games with your voice using VoiceBot!
CMU Sphinx - CMU Sphinx is a speaker-independent large vocabulary continuous speech recognizer released under...
VoiceMacro - Control applications or games by voice commands and/or by the press of a keyboard, mouse button or...
TextFromToSpeech - Free online speech recognition tool that will help you write text with your voice without typing.