1. Dual-channel, optical energy and sound energy, human speech recognition data collection apparatus comprising the combination of: a user's head-carried headset apparatus including a boom end received speech actuated microphone transducer member located close to lip and mouth cavity facial regions of said user; light emitting diode means disposed adjacent said microphone transducer member at said boom end for illuminating said lip and mouth cavity regions of said user with visible spectrum optical energy; pulse modulated electrical energy source means, of fixed predetermined operating frequency, connected with said light emitting diode means, for pulsed electrical energizing of said light emitting diode means and for pulsed optical energy generation therein; electrical photodiode transducer means disposed adjacent said microphone transducer member for generating a user's lip movement responsive amplitude modulated electrical signal having a carrier component of said predetermined frequency and having signal correlation with a voice generated electrical signal from said microphone transducer member; dual-channel electrical conduction means for communicating electrical signals from said microphone transducer member and said photodiode electrical transducer means to a spoken sound and lip movement correlation speech recognition electrical signal processor.