School of Languages and Linguistics - Research Publications

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Start date: 2020 × End date: 2022 × Author: Thieberger, Nicholas × Author: Fletcher, Janet ×

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    Phonetic evidence for phonotactic change in Nafsan (South Efate)
    Billington, R ; Thieberger, N ; Fletcher, J (Pacini Editore SpA, 2020)
    Nafsan, an Oceanic language of central Vanuatu, is notable for the complex phonotactic structures it exhibits compared to languages spoken further to the north, and compared to the general preference for CV syllables among Oceanic languages. Various types of heterorganic consonant clusters are found in syllable onsets, and are thought to have arisen from the loss of selected medial vowels. Medial vowel deletion is suggested to be a process of change which has been underway for some time in the language, but the details of how this process operates have not been fully clear. Unresolved questions relating to the status of length in the vowel system and the location of lexical prominence have posed a challenge to arriving at a detailed description of vowel deletion and its consequences. Drawing together recent phonetic analyses and previous work, this paper provides an overview of phonotactic structures in contemporary Nafsan and outlines the main factors which lead to the deletion of medial vowels and result in the complex syllable onsets observed today.
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    Acoustic evidence for right-edge prominence in Nafsan
    Billington, R ; Fletcher, J ; Thieberger, N ; Volchok, B (AIP Publishing LLC, 2020)
    Oceanic languages are often described as preferring primary stress on penultimate syllables, but detailed surveys show that many different types of prominence patterns have been reported across and within Oceanic language families. In some cases, these interact with segmental and phonotactic factors, such as syllable weight. The range of Oceanic prominence patterns is exemplified across Vanuatu, a linguistically diverse archipelago with over 130 languages. However, both impressionistic and instrumentally-based descriptions of prosodic patterns and their correlates are limited for languages of this region. This paper investigates prominence in Nafsan, an Oceanic language of Vanuatu for which previous observations of prominence differ. Acoustic and durational results for disyllabic and trisyllabic Nafsan words show a clear pattern of higher fundamental frequency values in final syllables, regardless of vowel length, pointing towards a preference for prominence at the right edge of words. Short vowels also show centralisation in penultimate syllables, providing supporting evidence for right-edge prominence and informing the understanding of vowel deletion processes in Nafsan.