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An investigation of the dynamics of vowel nasalization in Arabana using machine learning of acoustic features

Carignan, Christopher; Chen, Juqiang; Harvey, Mark; Stockigt, Clara; Simpson, Jane; Strangways, Sydney; (2023) An investigation of the dynamics of vowel nasalization in Arabana using machine learning of acoustic features. Laboratory Phonology , 14 (1) pp. 1-31. 10.16995/labphon.9152. Green open access

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Abstract

This paper presents exploratory research on temporally dynamic patterns of vowel nasalization from two speakers of Arabana. To derive a dynamic measure of nasality, we use gradient tree boosting algorithms to statistically learn the mapping between acoustics and vowel nasality in a speaker-specific manner. Three primary findings emerge: (1) NVN contexts exhibit nasalization throughout the entirety of the vowel interval, and we propose that a similar co-articulatory realization previously acted to resist diachronic change in this environment; (2) anticipatory vowel nasalization is nearly as extensive as carryover vowel nasalization, which is contrary to previous claims; and (3) the degree of vowel nasalization in word-initial contexts is relatively high, even in the #_C environment, suggesting that the sound change *#Na > #a has involved the loss of the oral constriction associated with N but not the complete loss of the velum gesture.

Type: Article
Title: An investigation of the dynamics of vowel nasalization in Arabana using machine learning of acoustic features
Open access status: An open access version is available from UCL Discovery
DOI: 10.16995/labphon.9152
Publisher version: https://doi.org/10.16995/labphon.9152
Language: English
Additional information: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third-party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Keywords: Social Sciences, Linguistics, Language & Linguistics, NASAL COARTICULATION, BREATHY VOICE, TIME, CONSONANTS, CONTRAST, FORMANT, ENGLISH, STOP
UCL classification: UCL
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > Div of Psychology and Lang Sciences > Speech, Hearing and Phonetic Sciences
URI: https://discovery.ucl.ac.uk/id/eprint/10166885
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