This dissertation examines the prosodic realization of pragmatic markers in English vlog speech, with particular attention to interjections, discourse markers, and hybrid forms. Specifically, the study investigates how articulation rate, pitch, intens...
This dissertation examines the prosodic realization of pragmatic markers in English vlog speech, with particular attention to interjections, discourse markers, and hybrid forms. Specifically, the study investigates how articulation rate, pitch, intensity, and pause behavior relate to the realization of pragmatic functions in audience-directed mediated communication. Pragmatic markers play a crucial role in managing discourse flow, expressing stance, and guiding listeners’ interpretation. Despite their interactional importance, the acoustic correlates of pragmatic markers have received relatively limited systematic investigation.
Drawing on a dataset of 250 tokens representing 86 distinct lexical items from English-language vlogs, the study provides a fine- grained acoustic analysis of these prosodic dimensions at both the token and item levels. The results suggest that articulation rate constitutes the most consistent prosodic cue for differentiating pragmatic marker types. Interjections are produced with significantly slower articulation rates than discourse markers and hybrid forms, a pattern consistent with their affective and interactional functions. They are also more frequently surrounded by pauses, reinforcing their role as boundary-marking or stance-resetting devices.
Pitch did not emerge as a reliable differentiator of pragmatic marker categories in absolute terms, although both interjections and discourse markers exhibited localized pitch elevation relative to surrounding speech. Intensity appears to function as a supporting cue: interjections tended to display greater loudness relative to their local context, whereas discourse markers and hybrid forms remained more acoustically integrated with surrounding speech.
Taken together, these findings are consistent with a gradient account of pragmatic markers, in which interjections are prosodically marked, discourse markers are rhythmically integrated, and hybrid forms occupy an intermediate, context-sensitive position. The results suggest that pragmatic function may be reflected more clearly in relational prosodic patterns than in categorical acoustic signatures. As such, the study offers further insight into the relationship between prosody, pragmatic meaning, and discourse management in contemporary mediated interaction.