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Acoustic Voice Quality Index as a Potential Tool for Voice Screening
Maryam Faham1, Anne-Maria Laukkanen2, Tero Ikävalko2
1Department of Speech and Language Pathology Rehabilitation Faculty, Shiraz University of Medical Sciences, Shiraz, Iran; Rehabilitation Sciences Research Center, Shiraz University of Medical Sciences, Shiraz, Iran.
Journal of Voice : Official Journal of the Voice Foundation
|October 5, 2019
Summary
The Acoustic Voice Quality Index (AVQI) shows potential for screening voice disorders in teachers, but performs best when combined with the Voice Handicap Index (VHI) for detecting mild voice deviations.
Area of Science:
- Speech and Hearing Sciences
- Occupational Health
- Vocal Pedagogy
Background:
- Vocal screening is crucial for individuals in voice-dependent professions like teaching to prevent voice disorders.
- The Acoustic Voice Quality Index (AVQI) is a validated tool for differentiating normal from abnormal voices and assessing treatment outcomes.
- A need exists for a reliable screening tool to identify early-stage voice issues in professional training.
Purpose of the Study:
- To evaluate the Acoustic Voice Quality Index (AVQI) as a screening tool for voice disorders in female teaching students.
- To assess if AVQI, in conjunction with auditory and self-perceptual voice assessments, can distinguish between normal and slightly impaired voices.
- To explore the correlation between AVQI scores and perceptual and self-reported voice assessments.
Main Methods:
- 128 female teaching students without diagnosed voice disorders participated in an experimental study.
- Voice samples were recorded during reading and sustained vowel phonation and analyzed using AVQI.
- Dysphonia grade (G) was assessed by expert therapists, and participants completed the Voice Handicap Index (VHI) questionnaire.
Main Results:
- The Acoustic Voice Quality Index (AVQI) demonstrated fair performance (Area Under the Curve = 0.554) in differentiating voice qualities.
- A combination of AVQI and Voice Handicap Index (VHI) showed significant differences between normal and mildly impaired voice groups.
- Weak but significant correlations were found between AVQI parameters and both grade of dysphonia (G) and VHI scores.
Conclusions:
- AVQI alone did not effectively differentiate between perceptually normal and slightly abnormal voices.
- Combining AVQI with perceptual assessment (like VHI) may enhance the screening of subtle voice deviations in at-risk populations.
- Further research is needed to refine AVQI's role in early voice disorder detection for professionals.
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