Vowel Quality in Xiang Non-Lexical Hesitation Markers: New Forms of Typological Evidence?

Abstract

Xiang (hsn) remains a poorly understood grouping within Sinitic, with no satisfactory conclusions on how to demarcate its boundaries or define its subgroupings. One general observation is that there is a rough typological split between the Northeast and Southwest related to contact from northern- and southern-type Sinitic varieties, respectively, which can be supported with phonological, lexical, and syntactic evidence. It is predicted here that an additional source of evidence can be found in the phonetic features of hesitation markers (HMs; 'fillers', 'speech disfluencies', etc.), which tend towards the central area of the vowel space (approaching [partial derivative], [chi], [e], etc.) but still conform to the phonologies of the languages in which they occur. This study introduces a novel three-way division of Xiang in terms of phonemic central vowels found in open syllables (either [partial derivative/gamma], [e/epsilon], or both) which is then evaluated against the vocalic quality found in HMs to determine whether they can be used as evidence for Xiang internal typology. Data are gathered from 47 speakers representing 16 Xiang localities, distributed across Hunan province, recorded performing the Pear Stories paradigm, with 304 hesitation markers extracted. Features reported on include vowel quality (F1-F2), tonal contour (F0), and duration (ms). It is found that Xiang HMs demonstrate four distinct vowel qualities, but that their distribution does not neatly fit established taxonomic schemes; however, the evidence does support the transitional status of Xiang varieties as a site of mixture of northern and southern Sinitic features.