Development and preliminary evaluation of two speech communication aids

In this paper two projects on speech communication aids for the speech-impaired are discussed. Since the group of speech-impaired people is very diverse, the two projects differ in target group, in the speech technology used and consequently in the complexity of input of the aids. In both projects (Pocketstem and Tiepstem) experimental models have been developed, and in the case of Pocketstem prototypes have been developed and evaluated by potential users. This paper describes the aids, their evaluation, the evaluation results and some conclusions and future plans.