Medidas cepstrais na avaliação da intensidade do desvio vocal em diferentes tarefas de fala

Abstract

Porpouse: To verify whether there is a correlation between cepstral measures and the intensity of vocal desviation in different speech tasks in individuals with voice complaints. Methods: We used 376 samples of the vowel / ε /, count and CAPE-V setences of individuals of both genders, with vocal complaint. An analogue-visual scale was used for auditory-perceptual analysis of voices regarding vocal desviation intensity (GG), degree of roughness (GR), breathiness (GS) and tension (GT), including the determination of vocal quality. predominant (rough, breathy or tense). Cepstral Peak Prominence-Smoothed (CPPS) was extracted from each task. Results: There was a difference in CPPS values between the groups with and without vocal deviation and between the different intensities and types of vocal deviation in all tasks. Comparing with and without laryngeal lesion, there was a difference for CPPS vowel and CAPE V sentences. Only CPPS vowel differentiates rough x breathy, rough x strained, and breathy x strained voices. CPPS vowel correlated negatively and strongly with GG and moderate negative with GR and GS. CPPS count correlated negatively moderately with GG and GR. CPPS CAPE-V sentences correlated moderately negatively with GG, GR, and GS. Conclusion: There is an association between the presence of vocal deviation, the presence of laryngeal injury, the predominant vocal quality and the CPSS in any of the tasks studied. There is an association between presence of laryngeal lesion and CPPS in vowel tasks and CAPE-V sentences. GG, GR and GS present moderate to strong correlations with CPPS in the tasks used. Of all tasks, only vowel CPPS showed a strong correlation with GG.