This thesis describes an expert system able to animate (graphically) and reproduce (acoustically) a text in any language which uses the Latin alphabet. A rule editor has been developed to create and modify the set of letter-to-sound rules of the target language. A parser has been implemented to apply the set of rules and translate text-to-speech. Each phoneme has a unique sound and thus requires its particular positioning of the vocal organs which are displayed in two different projections: a front view and a profile cross view of a human face in synchronization with the output sounds of the speech synthesizer.
Ruiz, Joaquin Alberto Vila and Dekock, Arlan R., "A Computerized Audio-Visual Speech Model" (1986). Computer Science Technical Reports. 77.
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