School of Languages and Linguistics - Research Publications

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    Nasal aerodynamics and coarticulation in Bininj Kunwok: Smoothing Spline Analysis of Variance
    STOAKES, H ; Fletcher, J ; Butcher, AR ; Carignan, C ; Tyler, M (ASSTA, 2016-12-06)
    Nasal phonemes are well represented within the lexicon of BininjKunwok.1 Thisstudyexaminesintervocalic,wordmedial nasals and reports patterns of coarticulation using a Smooth- ing Spline Analysis of Variance (SSANOVA). This allows for detailed comparisons of peak nasal airflow across six female speakers of the language. Results show that in a VNV sequence there is very little anticipatory vowel nasalisation and greater carryover into a following vowel. The maximum peak nasal flow is delayed for coronals when compared to the onset of oral closure in the nasal, indicating a delayed velum opening gesture. The velar place of articulation is the exception to this pattern with some limited anticipatory nasalisation. The SSANOVA has shown to be an appropriate technique for quantifying these patterns and dynamic speech data in general.
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    Prosodically Conditioned Consonant Duration in Djambarrpuyŋu.
    Jepson, K ; Fletcher, J ; Stoakes, H (SAGE Publications, 2019-03-01)
    Cross-linguistically, segments typically lengthen because of proximity to prosodic events such as intonational phrase or phonological phrase boundaries, a phrasal accent, or due to lexical stress. Australian Indigenous languages have been claimed to operate somewhat differently in terms of prosodically conditioned consonant lengthening and strengthening. Consonants have been found to lengthen after a vowel bearing a phrasal pitch accent. It is further claimed that this post-tonic position is a position of prosodic strength in Australian languages. In this study, we investigate the effects of proximity to a phrasal pitch accent and prosodic constituent boundaries on the duration of stop and nasal consonants in words of varying lengths in Djambarrpuyŋu, an Australian Indigenous language spoken in northeast Arnhem Land, Northern Territory, Australia. Our results suggest that the post-tonic consonant position does not condition longer consonant duration compared with other word-medial consonants, with one exception: Intervocalic post-tonic consonants in disyllabic words are significantly longer than word-medial consonants elsewhere. Therefore, it appears that polysyllabic shortening has a strong effect on segment duration in these data. Word-initial position did not condition longer consonant duration than word-medial position. Further, initial consonants in higher-level prosodic domains had shorter consonant duration compared with domain-medial word-initial consonants. By contrast, domain-final lengthening was observed in our data, with word-final nasals preceding a pause found to be significantly longer than all other consonants. Taken together, these findings for Djambarrpuyŋu suggest that, unlike other Australian languages, post-tonic lengthening is not a cue to prosodic prominence, whereas prosodic domain-initial and -final duration patterns of consonants are like those that have been observed in other languages of the world.
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    Nasal coarticulation in Bininj Kunwok: An aerodynamic analysis
    Stoakes, HM ; Fletcher, JM ; Butcher, AR (Cambridge University Press (CUP), 2020-12-01)
    Bininj Kunwok (BKw), a language spoken in Northern Australia, restricts the degree of anticipatory nasalization, as suggested by previous aerodynamic and acoustic analyses (Butcher 1999). The current study uses aerodynamic measurements of speech to investigate patterns of nasalization and nasal articulation in Bininj Kunwok to compare with Australian languages more generally. The role of nasal coarticulation in ensuring language compre-hensibility a key question in phonetics research today is explored. Nasal aerodynamics is measured in intervocalic, word-medial nasals in the speech of five female speakers of BKw and data are analyzed using Smoothing Spline Analysis of Variance (SSANOVA) and Functional Data Analysis averaging techniques. Results show that in a VNV sequence there is very little anticipatory vowel nasalization with no restriction on carryover nasalization for a following vowel. The maximum peak nasal flow is delayed until the oral release of a nasal for coronal articulations, indicating a delayed velum opening gesture. Patterns of anticipatory nasalization appears similar to nasal airflow in French non-nasalized vowels in oral vowel plus nasal environments (Delvaux et al. 2008). Findings show that Bininj Kunwok speakers use language specific strategies in order to limit anticipatory nasalization, enhancing place of articulation cues at a site of intonational prominence which also is also the location of the majority of place of articulation contrasts within the language. Patterns of airflow suggest enhancement and coarticulatory resistance in prosodically prominent VN and VNC sequences which we interpret as evidence of speakers maintaining a phonological contrast to enhance place of articulation cues.
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    Intonational correlates of subject and object realisation in Mawng (Australian)
    FLETCHER, J ; Stoakes, H ; Singer, R ; Loakes, D ; BARNES, J ; VEILLEUX, N ; SHATTUCK-HUFNAGEL, S ; BRUGOS, A (ISCA, 2016)
    A range of intonational devices can be used in the grammar of information and corrective focus marking in languages with relatively free word order. In this paper we explore whether nouns in the Australian Indigenous language Mawng are realised differently depending on syntactic function and focus. Results show that the pitch level associated with Subjects is higher in conditions of corrective focus compared to other utterance contexts and there is a strong correlation between focus and utterance position. Placing a word in a corrective focus context does not appear to have an effect on word duration in this corpus confirming that pitch register variation and intonational phrasing are the major prosodic cues associated with corrective focus in Mawng.
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    Accentual prominence and consonant lengthening and strengthening in Mawng
    Fletcher, J ; Stoakes, H ; Loakes, D ; Singer, R ; Wolters, M ; Livingstone, J ; Beattie, B ; Smith, R ; MacMahon, M ; Stuart-Smith, J ; Scobbie, J (University of Glasgow, 2015)
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    SPECTRAL AND DURATIONAL PROPERTIES OF VOWELS IN KUNWINJKU
    FLETCHER, J ; STOAKES, HM ; LOAKES, D ; Butcher, (UNIVERSITY OF SAARLAND, 2007)