Prosodic boundary gestures (pi-gestures) (Byrd & Saltzman, J. Phon., 2003) have been introduced to model the local slowing or lengthening of articulatory gestures in the vicinity of phrase boundaries. In this paper, pi-gestures are simulated within the TaDA task dynamics computational model and examined using functional data analysis (FDA) to evaluate articulatory lengthening in terms of underlying pi-gesture activation duration and strength from a realistic control model. A new derived variable of “deformation index” (area under FDA time-deformation functions) is shown to capture differences in π-gesture effect due to boundary strength.
Index Terms: pi-gesture, phrase boundaries, prosodic lengthening, functional data analysis
Cite as: Parrell, B., Lee, S., Byrd, D. (2010) Evaluation of juncture strength using articulatory synthesis of prosodic gestures and functional data analysis. Proc. Speech Prosody 2010, paper 333
@inproceedings{parrell10_speechprosody,
author={Benjamin Parrell and Sungbok Lee and Dani Byrd},
title={{Evaluation of juncture strength using articulatory synthesis of prosodic gestures and functional data analysis}},
year=2010,
booktitle={Proc. Speech Prosody 2010},
pages={paper 333}
}