Abstract
The Consensus Auditory Perceptual Evaluation of Voice (CAPE-V) scale is a modern, clinical-scientific approach to voice analysis. It has been translated and culturally adapted to Brazilian Portuguese, but it still lacks validation. To validate the Brazilian Portuguese version of the CAPE-V scale using the previously translated and culturally adapted version. Forty voice samples were selected (30 dysphonic, 10 nondysphonic), and the degree of vocal deviation was evaluated by a committee of three voice specialists. Nine voice specialists judged the 40 voice samples plus 20% repetition (total of 48 samples) using the CAPE-V. To ensure construct validity of the CAPE-V, its analysis was compared to the Grade-Roughness-Breathiness-Asthenia-Strain (GRBAS) scale that was performed 48-72 hours later. Finally, the intra- and inter-rater reliability values were verified and the correlation between the nine judges and the previously defined evaluation was analyzed. The Brazilian CAPE-V presented significant intra (0.860-0.997) and inter-rater reliability values (0.707-0.964) for the overall degree and strong correlation with GRBAS (above 0.828). Deviant voice quality had greater consensus among raters than normal voices. A strong correlation was observed between the analysis of the nine raters and that of the committee. CAPE-V is an important diagnostic instrument that contributes to the standardization of vocal quality evaluation in several languages, including Brazilian Portuguese. Thus, its usefulness is neither related to a single language nor to a single set of raters.
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