Acoustic measurements and perceptual evaluation of hoarseness in children's voices

Anita Mcallister, Johan Sundberg, S
1998 Logopedics, Phoniatrics, Vocology  
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 by
more » ... ures as proposed by Kasuya and coworkers. The analysis was carried out on a material of vowels sustained by 50 ten-year-old children with non pathological voices representing different degrees of hoarseness. Significant correlations were found between hoarseness, breathiness, and roughness, on the one hand, and the frequency perturbation quotient as well as one of the harmonics-to-noise measures on the other.
doi:10.1080/140154398434310-1 fatcat:dvcn3i5g7vhstohws3ejaouq64