A substantial proportion of children who have normal oral and motor function, nevertheless demonstrate difficulty producing one or more sounds in their native language. Assessment and treatment of such children has traditionally focussed on speech production to the exclusion of speech perception. The possibility that speech production difficulties might be associated with atypical speech perception abilities has been discounted in traditional therapeutic approaches. In contradiction, we find that a subset of children who have a functional articulation disorder have a concurrent and correlated perceptual disorder and that in some children, a formal computer-based training technique produces striking improvements in speech perception abilities, and improvements in the quality of produced speech as well. A new computer-based system for IBM-PC compatible computers has been developed to implement this training strategy.