Sociophonetic deception: the elements of vocal disguise

The focus of my research is vocal disguise within forensic linguistics. Specifically, I answer the question of what individuals are most likely to do with their voice when they do not want to be recognized by a listener. I also focus on whether specific sociolinguistic characteristics – gender and place of origin – have an effect on the disguise choices that individuals make. My research has found that participants show a preference for altering pitch and/or duration across conditions, as well as taking on a foreign accent. Gender and origin were found to be significant for respect to differences in duration, and significance was also found between origin and pitch. These results suggest that disguise might contain elements of style shifting, and that a speaker's choice is more systematic than random.