PURPOSE:
to compare acoustic data obtained through the phonatory deviation diagram of voices of dysphonic patients submitted to partial laryngectomy with voices of subjects of the same age range, however, without vocal complaint.
METHODS:
the voices of 28 subjects were studied: 14 submitted to partial laryngectomy and 14 without vocal complaints, composing a control group. Both groups of males with same age and educational level. The perceptual analysis of voices was conducted by GRBASI scale double-blind; and acoustic analysis used software VOXMETRIA(r).
RESULTS:
voices of partial laryngectomy group (100%) were distributed outside the normality quadrant, 64,3% were located in the upper right quadrant, 100% presented horizontal deviation of jitter and shimmer and 85,7% had a vertical deviation. In the control group, 28,5% were distributed within the normality quadrant, 71,5% were located in the lower right quadrant, 57,2% presented altered shimmer and 7,2% altered jitter. Only 7,2% had a vertical deviation in the control group. Statistical significance was observed regarding the parameters of jitter, shimmer and GNE (glottal to noise excitation) and between the distribution of the voices in the upper right and left quadrants of the diagram in the presence of altered voices.
CONCLUSION:
the diagram allowed to analyze and discriminate the performance of normal and pathological voice differentiating them through their parameters, distribution, location and type of voice, being considered a useful resource for voice analysis.
Dysphonia; Neoplasms; Speech Acoustic; Voice; Auditory Perception
