TY - JOUR T1 - Application of the Acoustic Voice Quality Index for Objective Measurement of Dysphonia Severity JO - Acta Otorrinolaringológica Española T2 - AU - Núñez-Batalla,Faustino AU - Díaz-Fresno,Estefanía AU - Álvarez-Fernández,Andrea AU - Muñoz Cordero,Gabriela AU - Llorente Pendás,José Luis SN - 21735735 M3 - 10.1016/j.otoeng.2017.06.007 DO - 10.1016/j.otoeng.2017.06.007 UR - https://www.elsevier.es/en-revista-acta-otorrinolaringologica-espanola-402-articulo-application-acoustic-voice-quality-index-S2173573517300650 AB - IntroductionOver the past several decades, many acoustic parameters have been studied as sensitive to and to measure dysphonia. However, current acoustic measures might not be sensitive measures of perceived voice quality. A meta-analysis which evaluated the relationship between perceived overall voice quality and several acoustic-phonetic correlates, identified measures that do not rely on the extraction of the fundamental period, such the measures derived from the cepstrum, and that can be used in sustained vowel as well as continuous speech samples. A specific and recently developed method to quantify the severity of overall dysphonia is the acoustic voice quality index (AVQI) that is a multivariate construct that combines multiple acoustic markers to yield a single number that correlates reasonably with overall vocal quality. MethodsThis research is based on one pool of voice recordings collected in two sets of subjects: 60 vocally normal and 58 voice disordered participants. A sustained vowel and a sample of connected speech were recorded and analyzed to obtain the six parameters included in the AVQI using the program Praat. Statistical analysis was completed using SPSS for Windows, version 12.0. ResultsCorrelation between perception of overall voice quality and AVQI: A significant difference exists (t(95)=9.5; P<.000) between normal and dysphonic voices. ConclusionsThe findings of this study demonstrate the clinical feasibility of the AVQI as a measure of dysphonia severity. ER -