CANDY ( Communication Assistance to Negate Disabilities in Youth) is similar in concept to the GloveTalk system, although it is extremely simplified, using only two degrees of freedom to model the movement of the mouth and tongue. They used magnetic trackers placed on the bodies of the individuals involved. It is intended for use by people suffering from cerebral palsy and was designed with the intention of being made as flexible as possible. From the movement of the subject, they extract two variables: The tongue tip position and the tongue base position. By modelling the the tongue and mouth, it is possible to determine the sound such a position would generate.