2. The apparatus of claim 1 , wherein the sensor unit includes a palatometer and a pseudopalate for sensing, in use, the position of the user's tongue.
2. The apparatus of claim 1 , wherein the sensor unit includes a palatometer and a pseudopalate for sensing, in use, the position of the user's tongue. 15. The apparatus of claim 2 , wherein the position of the user's tongue relative to the user's palate when the user articulates words or sounds is reduced to two-dimensional time-space plots which are fed into a neural network for analysis training and word or sound synthesis.