Validation of the Acoustic Voice Quality Index in the Lithuanian Language.

摘要: Summary Objectives The aim of the present study was to validate Acoustic Voice Quality Index in Lithuanian language (AVQI-LT) and investigate feasibility robustness its diagnostic accuracy, differentiating normal dysphonic voice. Methods A total 184 native subjects with voices (n = 46) various voice disorders (n = 138) were asked read aloud text sustain vowel /a/. sentence 13 syllables a 3-second midvowel portion sustained edited. Both speech tasks concatenated, perceptually rated for dysphonia severity by five clinicians. They Grade (G) from Roughness Breathiness Asthenia Strain (GRBAS) protocol overall Consensus Auditory-perceptual Evaluation visual analog scale (VAS). average scores (G mean VAS ) taken as perceptual level every sample. All concatenated samples acoustically analyzed receive an AVQI-LT score. Results auditory-perceptual judgment procedures showed sufficient strength agreement between raters. results achieved significant marked concurrent validity both AVQI-LT. accuracy comparable two different thresholds. threshold 2.97 G rating obtained reasonable sensitivity = 0.838 excellent specificity = 0.937. For rating, 3.48 determined sensitivity = 0.840 specificity = 0.922. Conclusions is considered valid reliable tool assessing Lithuanian-speaking population.