In the department’s phonetics and phonology discussion group Phlunch this Friday (February 26), Sarah Bakst (Berkeley) will give a talk on “The role of palate shape in individual articulatory and acoustic variability in American English /r/ and /s/”:
This ultrasound and acoustics study considers the role of individual anatomy in articulatory and acoustic variation and variability in the production of American English /r/ and /s/. Individual variation in the production of these consonants is a well-documented phenomenon (Mielke et al., 2010; Lawson et al., 2011; Bladon and Nolan 1977). /r/ falls on a continuum whose two endpoints are retroflex, in which the tongue tip points up, and bunched, where the primary constriction is formed by a raised tongue body (DeLattre and Freeman 1968); /s/ lies on a similar continuum from apical (tip points up) to laminal (tip points down).
In their study of front vowels, Brunner et al. (2009) found that flatter palates require greater articulatory precision than domed palates to achieve acoustic consistency because, all else being equal, smaller changes in articulation result in greater changes in acoustics for flatter palates than for domed. In this talk, I will present data indicating that palate shape does indeed influence variability in the production of /r/ and /s/, but the effect on articulation vs. acoustics varies depending on the segment.
As usual, Phlunch will take place from 11am to 12pm in the Linguistics Common Room.