Table A1. Results of linear mixed-effects models on the peak velocity of the lip aperture

	Estimate	SE	df	t-value	Pr (>[t])
(intercept)	0.274	0.111	211.20	2.459	0.01474*
CC [pp]	0.489	0.155	491.10	3.153	0.00171**
Vowel [ii]	–0.613	0.155	491.10	–3.954	<81e-05***
SR [fast]	–0.156	0.159	492.60	–0.982	0.32653
CC[pp]:V[ii]	–0.240	0.219	491.10	–1.095	0.27393
CC[pp]:SR[fast]	0.170	0.222	491.90	0.765	0.44453
V[ii]:SR[fast]	–0.356	0.222	491.90	–1.604	0.10945