talk to computers

6-44 — elektor june 1981 talk to computers (2) Hans P. Baumann Experiments are currently being carried out in the field of speech recognition by computers. Since computers do not posses any inborn intelligence or ex- perience, a speech recognition unit must learn all the faculties pertaining to hearing, step by step. This demands a much more powerful "brain" than that which is required for speech synthesis. Up until recently, speech recognition devices have usually featured an analyser to split up the entered speech signal into certain characteristic segments and a classifier to compare these characteristics with reference patterns stored in memory. When they Word recognition systems, on the other hand, are much more flexible, as they do not have to follow a strict word - order. Nevertheless, they too involve certain problems. If an individual word is to be picked out from a whole flow of speech, both the beginning and the end will have to be accurately defined. One method is to...