There are currently about 40 million deaf, mute and deaf-mute people and
many of them use sign language to communicate, but there are very few
people who actually understand sign language. Using gloves fitted with
flex sensors, touch sensors, gyroscopes
and accelerometers (as well as some solar cells to increase battery
life) the EnableTalk team has built a system that can translate sign
language into text and then into spoken words using a text-to-speech
engine. The whole system then connects to a smartphone over Bluetooth.