- Title
- An investigation of the dynamics of vowel nasalization in Arabana using machine learning of acoustic features
- Creator
- Carignan, Christopher; Chen, Juqiang; Harvey, Mark; Stockigt, Clara; Simpson, Jane; Strangways, Sydney
- Relation
- Laboratory Phonology Vol. 14, Issue 1, p. 1-31
- Publisher Link
- http://dx.doi.org/10.16995/labphon.9152
- Publisher
- Walter de Gruyter GmbH
- Resource Type
- journal article
- Date
- 2023
- Description
- 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.
- Subject
- sound change; vowel nasalization; pre-stopping; initial dropping; Arabana; Australian languages
- Identifier
- http://hdl.handle.net/1959.13/1481140
- Identifier
- uon:50650
- Identifier
- ISSN:1868-6346
- Language
- eng
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