The great progress in understanding the vocal physiology and the scientific and technological development in the voice area allow transposing the therapeutic limit through the means for the precocious detection of vocal changes. OBJECTIVE: to evaluate subjects without vocal complaint, and to correlate possible videostroboscopic, perceptual and acoustic analysis finding. STUDY DESIGN: Observacional cohort with transversal cut. PATIENTS AND METHODS: 21 men without vocal complaints were studied. Their ages ranged from 20 to 50 with median of 33. They were neither alcohol nor smoke users. The subjects underwent the videostroboscopic, perceptual and acoustic evaluations. RESULTS: 57.15% of the subjects presented any alteration in one or more of the evaluated aspects. In the videostroboscopy it was observed posterior triangular gap in 4 subjects. Ten subjects presented a mild grade alteration in the perceptual analysis, in instability, hoarseness and breathiness parameters. Three subjects presented respectively hipernasal, cul de sac and pharyngolaryngeal resonance focus. The acoustic evaluation presented the following averages: f0 125.69 Hz; jitter 0.22%; shimmer 3.06%; NNE -12.29 dB; HNR 20.75 dB; tremor frequency 2.09 Hz; tremor amplitude 1.16 Hz. Some subjects presented shimmer% values and tremor frequency largest than the average. CONCLUSION: Alterations were detected in 57.15% of the evaluations of subjects without vocal complaints. Those changes could be variations of the normality, or they could indicate a predisposition to future glottic and vocal alterations in the course of the time. There was any acoustic aspect change in all the evaluations, which presented alteration.
voice; laryngoscopy; stroboscopy; perceptual evaluation; voice acoustic evaluation; vocal complaints
