Evaluation of a training program using visible speech in German schools for the deaf

The present study provides insight into several technical and computer-aided procedures that can be used with deaf students to improve their speech. A visible speech device combined with a training program was developed and evaluated in six German schools for the deaf. The teachers were initially given special instructions about the work with their students in accordance with our technical and training concept. The students were able to build up a knowledge of visible patterns of spoken sounds, syllables, and words. They used this knowledge to recognize speech errors and to improve their pronunciation. Teachers' experiences were mostly positive. As they said, this device made their work much easier. The results show that visible speech can be used effectively; however, it has to be embedded in a training program that systematically builds up phonological knowledge and considers symbolic meanings from signed and written language.