hi i think there is a good project with bluetoth,the project is how to learn the deaf pepole and pepole cant talk and thats bye transmiting your sound by bluetoth to therir computers the computer translate sound to english word and to their special samples and also when they wana talk write thier samples computer convert it to english then to sound hope i help u bye :lol:
Because of the compression used to transmit audio most speech recognition won't work.
How about a bluetooth mouse or joystick. Bluetooth has a human interface device protocol. The bluetooth software will be the most complicated part of the project. You could just buy a cheap mouse and take the quadrature signals off the sensor chip and send the data through bluetooth.