Intonation: Theory, Models, and Applications

Athens, Greece
September 18-20, 1997


A Perceptual Study of Arabic Intonation

A. Rajouani, M. Loukili, Z. Najim

LEESA, Faculte des Sciences, Rabat, Morocco

In this paper we describe the development of an intonative model for Arabic language. Our model is designed for text-to-speech synthesis. We adopted the perceptual approach proposed at the Institute for Perception Research, Netherlands. The corpus recorded in soundproof room is constituted of 120 declarative and interrogative sentences. Natural F0 contours were closely approximated by means of a concatenation of straight lines , it's the stylization stage. We used 65 stylized sentences and obtained about 650 F0 movements which were processed and reduced to a small set of standard movements, it's the standardization stage. The F0 contours made of standardized movements are not perceptually identical to stylized contours, but they must be perceptually equivalent. Categorization stage reduces the number of standard movements to 11 (5 rises, 5 falls and a flat movement). Rises and falls are differentiated according to variables such as position in the syllable, size and slope.

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Bibliographic reference.  Rajouani, A. / Loukili, M. / Najim, Z. (1997): "A perceptual study of Arabic intonation", In INT-1997, 279-284.