Old age (reading) ; Old age (speech perception) ; Phonetics (sociolinguistics) ; Sociophonetics ; Categorical sound perception ; Lautquantität; Lautqualität; Quantität (phonet.) ; Quantity (phonet.) ; Qualität (phonet.) ; Quality (phonet.) ; Vowel duration (phonet.) ; Vowel length ; Neuseeland (engl. Sprache in) ; New Zealand (English language in) ; Pākehā; English in New Zealand