Standard manuals of Spanish pronunciation recognize that both [+continuant] and [-continuant] surface variants occur for the voiced obstruents/bdg/. Within generative phonology, it has been assumed that the systematic phonemic representation for these voiced obstruents should be [-continuant] /bdg/, with a rule of spirantization converting these…

This paper concerns which aspects of speech articulation belong to phonology and which aspects belong to phonetics. The authors deal primarily with physiological criteria, and consider examples of assimilation and its phonological or phonetic relevance. Co-articulation and reduction are also considered; they are viewed as factors responsible for…