Professional multiparametric voice quality and breathiness assessment
Using validated cutoff points: AVQI > 1.33 and ABI > 2.94 for dysphonia detection. Based on peer-reviewed research and clinical validation studies.
🎯 What are AVQI and ABI?
AVQI (Acoustic Voice Quality Index) combines 6 acoustic parameters into a single validated score for overall dysphonia severity. Validated for Brazilian Portuguese using counting 1-11 + sustained /a/.
ABI (Acoustic Breathiness Index) combines 9 acoustic parameters specifically designed to quantify breathiness perception. Uses the same protocol: counting 1-11 + sustained /a/.
Protocol validated by Englert et al. (2021) for Brazilian Portuguese with 150 subjects.
Patient counting numbers 1-11 at normal volume and pace
3-5 seconds of sustained /a/ at comfortable pitch
Analysis requires both recordings for accurate calculation
AVQI and ABI scores with clinical interpretation
AVQI and ABI require counting numbers 1-11 and sustained vowel /a/ for accurate calculation (validated protocol for Brazilian Portuguese)
Patient counting from one to eleven
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Patient sustaining "aahhh" vowel
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Calculating AVQI and ABI...
Analyzing multiparametric indices • This may take 15-20 seconds