Duration of Post-Stress Intervocalic Stops and Preceding Vowels

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Abstract
Measurements of the duration of the closure of post-stress, intervocalic stops in two-syllable words, of the vowels that precede them, and of vowels preceding stops in monosyllabic words were made from the speech of one speaker with intervocalic ‘voiced t’. Results for monosyllabic words indicate a vowel duration ratio of 2:3 before voiceless and voiced stops and four intrinsically short vowels, /I, ∊, Λ, U/. The duration ratio of vowels before stops in two-syllable words and those in mono-syllabic words is 2:3. There is the same indication of four intrinsically short vowels in two-syllable words. The average difference in vowel duration before voiced and voiceless alveolar stops is only 0·9 csec. while it is more than 3 csec. before the other stops. Closure duration difference between voiced and voiceless alveolar cognates was found to be insignificant as compared to the differences for bilabial and velar cognates.

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