Incomplete devoicing in formal phonology

Experimental evidence suggests that syllable-final devoicing is often ‘incomplete’: devoiced obstruents are phonetically subtly different from underlyingly voiceless ones, and speakers are sensitive to these differences. While it has been suggested in the literature that these results cause severe problems to formal theories of phonology, this article argues that we only need a three-way distinction at the end of the phonological derivation between voiced, voiceless and devoiced. It is shown how this distinction follows naturally from a Containment-based view of input–output relations within the framework of Optimality Theory.