Speech learning for deaf and hard of hearing - uses constantly distinguishable stimulating features corresponding to sound pattern and sent to sense receptors

摘要

Speech is learned by using surface electrodes (1) which generate electrical signals derived from the muscular activity of the vocal tract during articulation. These signals are passed to a filter stage (4) via an input stage (2) having a filter and impedance transducer and via an adjustable amplifier (3). The signals are conveyed via a further amplifier (5) and impedance transducer (6) to the electrodes of a matrix (7) for feedback into a tactile system for the person to touch. In this way, he or she connects the touch pattern to the articulation.