# Lips-Jaw and Tongue-Jaw Articulatory Tradeoff in DYNARTmo

arXiv: https://arxiv.org/abs/2511.22155 · HTML: https://mlsanity.com/paper/2511.22155/

## Key facts

- No citing papers in the map yet (data through 14 Oct 2026).
- Builds on 2 of its 24 references that are in the map.
- First posted on arXiv 27 Nov 2025.

## Builds on (most cited first, 2 of 2)

- [DYNARTmo: A Dynamic Articulatory Model for Visualization of Speech Movement Patterns](https://mlsanity.com/paper/2507.20343/) (2025)
- [The Dynamic Articulatory Model DYNARTmo: Dynamic Movement Generation and Speech Gestures](https://mlsanity.com/paper/2511.08372/) (2025)

## Abstract (arXiv)

This paper investigates how the dynamic articulatory model DYNARTmo accounts for articulatory tradeoffs between primary and secondary articulators, with a focus on lips-jaw and tongue-jaw coordination. While DYNARTmo does not implement full task-dynamic second-order biomechanics, it adopts first-order task-space gesture specifications comparable to those used in articulatory phonology and integrates a simplified mechanism for distributing articulatory effort across multiple articulators. We first outline the conceptual relationship between task dynamics and DYNARTmo, emphasizing the distinction between high-level task-space trajectories and their low-level articulatory execution. We then present simulation results for a set of CV syllables that illustrate how jaw displacement varies as a function of both place of articulation (labial, apical, dorsal) and vowel context (/a/, /i/, /u/). The model reproduces empirically attested patterns of articulatory synergy, including jaw-supported apical closures, lower-lip elevation in bilabial stops, tongue-jaw co-movement, and saturation effects in labial constrictions. These results demonstrate that even with computationally simplified assumptions, DYNARTmo can generate realistic spatio-temporal movement patterns that capture key aspects of articulatory tradeoff and synergy across a range of consonant-vowel combinations.