Dialect perception in song versus speech

Abstract

Investigations into style-shift in singing led to the proposal of genre-specific musical sociolects [Coupland, 2011, J. of Soc. 15]. Gibson [2019, Univ. of Canterbury Dissertation] demonstrated that style-shift in popular music is automatic. Additionally, Mageau et al. [2019, Phonetica 76] found non-native English speakers have a less perceptible foreign accent while singing than speaking. These findings provide possible behavioral analogues to the differential processing of speech and song. Gibson [2019, UofCanterbury Dissertation] accounts for this using Todd et al’s [2019, Cognition 185] exemplar theory, emphasizing the role of sung and spoken contexts in perception. We investigate the role of musical context in accent identification. 24 participants completed a dialect-identification task of 32 musical clips from two genres with strong sociocultural associations: country and reggae. 16 clips contained the original instrumental-removed vocals, and 16 different clips from the same songs additionally underwent monotonization and rhythm-normalization. Responses to the manipulated stimuli were more varied than the original vocals. Listeners’ judgements may be more closely tied to country and reggae’s sociocultural associations than speech information itself. These findings counter Mageau et al., illuminating a more complex relationship between accent perception, music, and genre. Future work will investigate this for dialect-nonspecific genres and adjust approaches to stimuli manipulation.