Research master thesis | Linguistics (research) (MA)
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This thesis investigates a recurring issue found in fieldwork on Niger-Congo and Nilo-Saharan languages: how can a linguist tell if a given language has the vowels [ɪ ʊ], or [e o], or both? These...Show moreThis thesis investigates a recurring issue found in fieldwork on Niger-Congo and Nilo-Saharan languages: how can a linguist tell if a given language has the vowels [ɪ ʊ], or [e o], or both? These two pairs of vowels – which differ in their height and ATR (‘advanced tongue root’) value – are notoriously difficult to tell apart acoustically, and their pronunciation varies considerably between languages and even speakers. Moreover, previous studies have only focused on how to distinguish these vowels in languages with both pairs; in languages with just one pair, how do we know if that pair is [ɪ ʊ] or [e o]? To address this gap, the main acoustic study of this thesis looks at data from Boa-Leboale, a Bantu language spoken in the Democratic Republic of the Congo that has historically been described as only having [ɪ ʊ], not [e o]. Using the results and acoustic methodology of Starwalt’s (2008) landmark study, I construct a number of hypotheses to test two research questions; research question (I) investigates whether Boa-Leboale has one or two pairs of vowels and research question (II) attempts to identify whether a given set of vowels is more likely to be [ɪ ʊ] or [e o]. The results of this study indicate that Boa-Leboale does indeed have only one pair of vowels, and those vowels are most likely [ɪ ʊ], as suggested by previous descriptions. Given this promising result, I hope that further studies will be able to improve on the study presented here and solve the issue of identifying these vowels acoustically not just for Boa-Leboale, but for any language.Show less
