Duration as a Phonetic Cue in Native and Non‑Native American English
This vowel study looks at the intricate relationship between spectral characteristics and vowel duration in the context of American English vowels, both from a native speaker (NS) and non-native speaker (NNS) perspective. The non-native speaker cohort is homogeneous in the sense that all speakers have Serbian as their mother tongue, but have been long-time residents of the US. The phonetic context investigated in this study is /bVt/, where V is one of the American English monophthongs /i ɪ u ʊ ε æ ʌ ɔ ɑ/. The results of the acoustic analysis show that the NNS vowels are generally longer than the NS vowels. Furthermore, NNSs neutralise the vowel quality of two tense and lax pairs of vowels, /i ɪ/ and /u ʊ/, and rely more heavily on the phonetic duration when prononuncing them.
Copyright (c) 2019 Biljana Čubrović
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