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COMPUTATIONAL MODELLING OF SPEECH PRODUCTION

This paper outlines the basis of a computational model of speech production which focuses on contributing to an understanding of detail present in an acoustic speech signal but which has so far eluded satisfactory explanation. This is an extension of the SPRUCE speech production model reported earlier [Tatham, Morton and Lewis 1998, 2000]. Descriptive models which have no computational basis are difficult to test and evaluate, and so do not really help in establishing the theory they exemplify. In addition current models are not complete: it is usually not possible to trace a potential utterance through all its phonological and phonetic stages to arrive finally at an articulation or acoustic signal.