ISCA Archive SpeechProsody 2024
ISCA Archive SpeechProsody 2024

A corpus phonetics study of Dalabon nouns

Catalina Torres, Sarah Babinski

Dalabon is a severely endangered Australian language in the Northern Territory. The language’s intonational phonology has been described as a head-edge marking type. As several other Australian languages, Dalabon has been described as a stress language, based on a stress rule. However, there are no dedicated studies examining the acoustic cues involved in marking stress in this language. In this preliminary study, we investigate a set of acoustic correlates commonly associated with stress marking in other languages to examine their potential role in Dalabon. For this purpose, we use corpus data of spontaneous speech taken from personal narratives and elicited story telling. The data from the DoReCo corpus is transcribed, translated into English, time-aligned at the level of discourse units, and forced aligned at the segmental level. We further process the corpus to obtain a word list of nouns, a syllable level and predicted stress marking. In our acoustic analysis, we examine duration, fundamental frequency, the first and second formants, as well a relative intensity measured in vowels. Our statistical investigation shows that these cues don’t associate with stress marking. Instead, we find that major prosodic boundaries have an effect on some of the cues.