Conversation Captioning

Have you ever been in a noisy room and been unable to hear the person sitting right next to you? What if you could READ what they were saying? This system would use a device that resembled a cell-phone headset. Instead of a microphone, however, a tiny camera would be aimed at the wearer's mouth so that it could optically interpret the movement of the lips as words. The headset would then send a signal to a lapel on the wearer's shirt. The lapel would feature a little scrolling LCD screen, which would display the wearer's words as text. No more yelling, no more exaggerated enunciation.