Methods: It is an uncontrolled clinical trial with patients who attended voice therapy at the outpatient clinic of a hospital (southern Brazil). All the patients underwent otorhinolaryngologic assessment for laryngeal disorder diagnosis. Perceptual-auditory voice assessment (GRBASI scale) and Hospital Anxiety and Depression Scale (HADS) were applied before and after voice therapy. Mann-Whitney, Wilcoxon, and Pearson Correlation tests were carried out, maximum significance level of 5% (p ≤ 0.05), SPSS 16.0. It was approved by Ethics Committee of Institution (record 986/12).