An Acoustic Study of Romanian Stressed Vowels with Special Reference to Mid Central [ɨ] and [ə

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The present study is concerned with some aspects of the production of [ɨ] and [ə] in Romanian, i.e., their position within the vowel space, degree of acoustic variability and acoustic duration. To this end, acoustic data were collected for the Romanian stressed vowels [i e a o u ɨ ə] produced by six speakers in controlled consonantal context conditions and real and nonsense words. The formant frequency data reveal that [ɨ] and [ə] do not overlap along the F1 dimension, which may be ascribed to the need to set in contrast the two central vowels phonologically. Moreover, [ɨ] is clearly more variable in F2, and thus in vowel fronting, than schwa. Regarding segmental duration, [ɨ] is as short as high vowels and shorter than schwa, whose duration is comparable to that of mid vowels. The phonetic characteristics for stressed schwa in Romanian are in contrast with those for the same vowel in other world’s languages, in which it is highly variable and shorter than all or most peripheral vowels. This behaviour may be attributed to the existence of two central vowels, while suggesting that [ə] has a well-defined articulatory target in the Romanian language.