Marking boundaries: intonation units and prosodic sentences
Abstract
This paper presents a study of the prosodic correlates at the boundaries of intonation units and prosodic sentences in Jaminjung, a severely endangered language of Northern Australia, including pitch resets, final lengthening, pauses, and phonation events such as breathiness and creakiness. This analysis demonstrates that units of speech larger than IUs must be examined to account for the phenomena observed in spontaneous speech. It contributes to the ongoing debate on the nature and status of discourse units and the best methodologies for their identification (Degand and Simon 2009); it also contributes to the developing interest in examining discourse in spontaneous speech and its theoretical implications (Wichman 2006) from the perspective of an, as yet, unwritten language.
Key takeaways
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- The study identifies prosodic correlates distinguishing intonation units (IUs) and prosodic sentences (PSs) in Jaminjung.
- Pitch resets average 11.21Hz for IUs and 22.47Hz for PSs, indicating differentiation at boundaries.
- Breathiness occurs in 71% of IUs, while creakiness is present in 89% of PSs, suggesting phonation's role in discourse.
- The analysis highlights the need to examine larger speech units beyond IUs for spontaneous speech phenomena.
- This research contributes to understanding discourse structuring in Jaminjung, a severely endangered language.
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