The development of a sound change can be influenced by linguistic and social factors, both within the language community and from cases of language contact. The present study is an examination of the internally generated ongoing tonogenesis process in Afrikaans, specifically analyzing production and perception of word-initial plosives among different age and gender groups. Results show that female speakers are devoicing significantly more often than male speakers, and the perception of female voices is influenced more by f0 levels than the perception of male voices. This study finds that gender is a larger predictor overall of tonogenetic patterns than age.*
