UC Berkeley Phonology Lab Annual Report (2013) Nicholas Rolle UC Berkeley 1 “Nasal vowel patterns in West Africa”
[email protected] 1. INTRODUCTION Nasal vowels are a common feature of West African phonologies, and have received a significant amount of attention concerning their (suprasegmental) representation, their interaction with nasal consonants, and their phonetic realization. Numerous authors have presented surveys of varying degrees of (targeted) depth which address the distribution of contrastive nasal vowels in (West) Africa, including Hyman (1972), Williamson (1973), Ruhlen (1978), Maddieson (1984, 2007), Clements (2000), Clements & Rialland (2006), and Hajek (2011). Building on this literature, this present study provides a more extensive survey on contrastive nasal vowels in West Africa, and specifically studies the types of systematic gaps found. For example, the language Togo-Remnant language Bowili has a 7 oral vowel inventory canonical of West Africa /i e ɛ a ɔ o u/, as well as a full set of nasal counterparts /ĩ ẽ ɛ ̃ ã ɔ̃ õ ũ/ (Williamson 1973). In contrast, the Gur language Bariba has the same 7 oral vowel inventory, though a more limited nasal set /ĩ ɛ ̃ ã ɔ̃ ũ/, missing mid-high vowels */ẽ õ/ (Hyman 1972:201). Using this as a starting point, this paper addresses the following questions: . What are the recurring patterns one finds in West African nasal vowel systems and inventories? o What restrictions are there on mid vowels in the nasal inventory? . In which families/areal zones do we find these patterns? . To which factors can we attribute these patterns? o Genetic – Vertical inheritance o Areal – Horizontal spread o Universal Phonetic – Parallel Developments .