CT-based Morphometric Analysis of Professional Opera Singers' Vocal Folds

Publication date: Available online 21 March 2018
Source:Journal of Voice
Author(s): Pedro Clarós, Aleksandra Z. Sobolewska, Antonio Doménech-Clarós, Astrid Clarós-Pujol, Carmen Pujol, Andrés Clarós
Purpose and Study DesignOur work aimed to study the relationship between the length of vocal folds and classical voice type among professional opera singers. Also, the present paper attempts to assess if individual features such as height and body mass index are associated with the vocal folds length (VFL) and the vocal range. Our research compared VFL and voice type by evaluation of neck computed tomography imaging of professional opera singers obtained between 2009 and 2015. Vocal range was measured after scanning procedure by a speech-language pathologist. The results were used to compare VFL with vocal range, voice type, and individual features of every singer.Material and MethodsThe group included 93 opera singers (female: 31 sopranos, 15 mezzos, and 5 contraltos; male: 17 tenors, 16 baritones, 6 basses, and 3 countertenors). Different values such as VFL, vocal range, and individuals' features (height, weight, body mass index) were analyzed statistically.ResultsSome significant differences and correlation were found. The VFL was diversified between classical voice types. VFL for soprano, mezzo-soprano, and bass was significantly different from every other type of voice. The vocal range has been shown to have a negative correlation with VFL value, which reflects the narrowest vocal range among bass voices. The analysis confirmed a linear correlation between VFL and individual features of the body such as height and body mass index.ConclusionPresented data support the hypothesis that there are significant differences of VFL, vocal range, and body morphology between professional singers of different voice classification.



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