| Popis: |
Our previous work on the Greek rhotic in several positions has shown that it is typically articulated with a single constriction of short duration and a vocoid. In this study, we examine the rhotic in a new position, i.e. domain-final singleton /r/ in three prosodic positions (utterance-final, phrase-final, phrase-medial). Analyses included articulatory examination of the place and degree of constriction of the rhotic, variability due to context, acoustic duration of the constriction and vocoid phases, F1, F2 formants of the nuclear vowel and the vocoid, and classification of the constriction and vocoid on the basis of acoustic and articulatory characteristics observed in their production. A single constriction was found in the majority of tokens followed by a vocoid in all prosodic positions, typically with longer duration than the constriction. The formant structure at the vocoid mid-point was more centralised than that of the nuclear vowel. Prosodic position affected several acoustic and articulatory parameters of the constriction and the vocoid. Results are discussed in relation to accounts of articulatory weakening vs. strengthening at the edges of different prosodic domains. |
