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According to a previous investigation of children's voices hoarseness was found to be a stable concept consisting of three main predictors: hyperfunction, breathiness, and roughness. The present investigation analyses the relation between these perceptual voice characteristics, complemented by instability and gratings (high pitched roughness), and four acoustic measures, pitch perturbation quotient, amplitude perturbation quotient and two types of normalised noise energy measures as proposed bydoi:10.1080/140154398434310-1 fatcat:dvcn3i5g7vhstohws3ejaouq64