OCP 3, Budapest, January 17, 2006 Sibilant inventories in bidirectional phonology and phonetics Paul Boersma Silke Hamann Universiteit van Amsterdam ZAS Berlin paul.boersma@uva.nl silke@zas.gwz-berlin.de 1. Bidirectional phonology and phonetics 1a. A single grammar for phonology and phonetics: four representations Underlying Form Surface Form Auditory Form Articulatory Form lexical constraints faithfulness constraints structural constraints cue constraints sensorimotor constraints articulatory constraints { { phonological representations phonetic representations Where is phonetic detail? There are two discrete economical representations (underlying and surface form) and two continuous rich representations (auditory and articulatory form). 1b. A single grammar for two directions of processing UF SF AudF ArtF comprehension UF SF AudF ArtF production Comprehension: this process consists of two sequential modules (McQueen & Cutler 1997): the listener first converts a given auditory form into a phonological surface form (prelexical perception), which she then uses to find an underlying form in the lexicon (word recognition). Production: this process is parallel (Boersma 2005a): the speaker converts a given UF into an optimal triplet { articulatory form, auditory form, surface form } that is determined by the interaction of faithfulness, structural, cue, sensorimotor, and articulatory constraints.