In this thesis, I provide the first acoustic description of Ecuadorian Siona phonemic vowels, six oral vowels and six corresponding nasal vowels. Two phonetic dimensions – vowel height, measured...Show moreIn this thesis, I provide the first acoustic description of Ecuadorian Siona phonemic vowels, six oral vowels and six corresponding nasal vowels. Two phonetic dimensions – vowel height, measured through the first formant frequency (F1), and vowel backness, measured through the second formant frequency (F2) – are taken as the descriptors of vowel quality. These dimensions are used to illustrate the target vowels in their acoustic space. Vowel quantity, which refers to vowel duration, is also measured. For each target vowel, the mean frequencies of F1 and F2, as well as the durational means, are presented. In addition, the effects of different phonological environment on the realization of target vowels are investigated. Ultimately, I construct the acoustic vowel space for oral and nasal vowels, and I compare the acoustic properties of the two types of vowels. The results for oral vowels demonstrate six distinct qualities, similar to the ones described by Bruil (2014), with the back vowels appearing consistently lower in the vowel space. Nasal vowel space shows more variability and a general shrinking effect of vocalic contrasts. The findings also demonstrate a nasalization effect whereby all nasal vowels are on average lower than their oral counterparts. Finally, the analysis revealed that the vowels /i, ɨ̃/ are phonetically long, at least in the context that they appeared.Show less
Several languages in the world alternate between marked and unmarked objects with respect to different properties of the noun, including animacy and specificity. This phenomenon is called...Show moreSeveral languages in the world alternate between marked and unmarked objects with respect to different properties of the noun, including animacy and specificity. This phenomenon is called differential object marking. In this thesis, I describe the differential object marking system of Cha’palaa, a Barbacoan language spoken in Ecuador, and compare this with the differential object marking systems of the related Barbacoan languages. It can be concluded that in three of the four languages, including Cha’palaa, differential object marking is only governed by specificity. In one language, namely Awa Pit, differential object marking is governed by both animacy and specificity.Show less
