Speech Prosody 2010

Chicago, IL, USA
May 10-14, 2010

Evaluation of Juncture Strength using Articulatory Synthesis of Prosodic Gestures and Functional Data Analysis

Benjamin Parrell, Sungbok Lee, Dani Byrd

Department of Linguistics, University of Southern California, USA

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

Full Paper

Bibliographic reference.  Parrell, Benjamin / Lee, Sungbok / Byrd, Dani (2010): "Evaluation of juncture strength using articulatory synthesis of prosodic gestures and functional data analysis", In SP-2010, paper 333.