Speech and Language Technology for Disabled Persons
Research and developmentin the area of speech-processing aids has been going on since the beginning of this century. At first many thought of tactile aids, for example, as sensory replacement aids, but the work is now concentrated on aids that give support during speech-reading. Progress has been slow and few aids are commercially available. Different explanations for this lack of success is possible, e.g. "speech is special" and an auditory decoder is needed, early training or long-time training is needed, codes must be selected that overcome the poor time resolution in the alternative senses, etc. Our present knowledge of the limitation of the sensory alternatives is insufficient and studies are suggested that both simulate signal extraction strategies and sensory limitations.
Bibliographic reference. Risberg, Arne (1993): "The development of speech-processing aids for the DEAF - past, present and future", In SLTDP-93, 9-14.