The arabic vowels: Features and possible clinical application in communication disorders

Most scholars, old and modern, agree that the vowel system of the Arabic language is composed of 3 vowels only, namely /i/, /ε/ and /u/. The spoken Cairo dialect suggests that there are 6 identifiable vowels, with a short and long variant for each. Objective: The aim of this study is to test the validity of the notion that there are 6 × 2 distinct vowels, with a more central one. Subjects and Methods: Spectral analysis was used to measure F1 and F2 for the vowels of 14 real words. Data was collected from 60 healthy adult informants, 30 males and 30 females. They were native Egyptians speaking the colloquial Cairene dialect. Results: The values of the 6 long and short vowels plus the central one are presented. A significant difference was found between each of them. The long and short vowels differed only in the duration but did not differ in their formant values. Conclusion: The study illustrates the distinctive features of the vowels of the Arabic language. Each of the 7 vowels represents a distinct entity. This will have important implications in assessment and management of language, speech and voice disorders in children and adults. Copyright © 2010 S. Karger AG, Basel.