Language variation/Dialectology ; Dialektologie, perzeptuelle; Dialectology, perceptual; Folk dialectology; Perceptual dialectology ; Frequency (acoustics) ; Continuum (phonet.) ; Voice disguise; Voice recognition (phonet.) ; Stimmenerkennung (phonet.) ; Speaker identification (phonet.) ; Neuseeland (engl. Sprache in) ; New Zealand (English language in) ; Pākehā; English in New Zealand