This talk discusses the distinctive features, articulatory gestures and phonation types in Hadza, Iraqw and Datooga. It presents an articulatory and acoustic description of bilabial, dental, alveolar and lateral clicks, and the expression of glottal, nasal and aspirated features. The goal is to describe Hadza clicks in terms of gestures and distinctive features, and to evaluate the acoustic similarities between clicks and ejectives. The data comes primarily from Hadza, which was collected in the field using EVA, EGG, HS Camera and palatography. Some comparitive data from Iraqw and Datooga is included in the talk.

Note: This talk has not gone through a process of peer review, and findings should therefore be treated as preliminary and subject to change. Acknowledgement and citation: Demolin, Didier. 2020. Distinctive features, articulatory gestures and phonation types in Hadza, Iraqw and Datooga. Talk given at the Rift Valley Network Webinar Series. 02/12/2020.