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Validation of the Acoustic Voice Quality Index and the Acoustic Breathiness Index in the Persian Language Publisher Pubmed



Aghajanzadeh M1 ; Saeedi S1 ; Jalaie S2 ; Esarian K1 ; Barsties V Latoszek B3
Authors
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Authors Affiliations
  1. 1. Department of Speech Therapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Physiotherapy, School of Rehabilitation, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Speech-Language Pathology, SRH University of Applied Health Sciences, Dusseldorf, Germany

Source: Journal of Voice Published:2023


Abstract

Objectives/Hypothesis: This study aimed to validate the acoustic voice quality index version 03.01 (AVQIv3) and the acoustic breathiness index (ABI) in the Persian language. Methods: Six judges assessed the severity degree of the abnormal overall voice quality (hoarseness) and breathiness from continuous speech (cs) and sustained vowel (sv) in 136 voices samples of dysphonic and 45 vocally healthy participants. Firstly, the time length of cs and sv was balanced out for a higher level of ecological validity. Secondly, the concurrent validity and diagnostic accuracy were statistically analyzed with the Spearman rank-order correlation, and the receiver operating characteristics, likelihood ratio, and Youden index. Results: There was substantial inter-rater reliability between judges regarding hoarseness and breathiness. Twenty syllables were identified as the standardized number of syllables for the cs part. Sufficient correlations were found between AVQI and hoarseness (rs = 0.74), and between ABI and breathiness (rs = 0.74), respectively. The thresholds of 1.63 (sensitivity of 73.2% and specificity of 91%) and 2.97 (sensitivity of 70% and specificity of 87%) yielded the highest level of diagnostic findings for AVQI and ABI, respectively. Conclusion: The AVQIv3 and ABI are reliable indices to quantify the abnormal overall voice quality and breathiness in the Persian language. © 2023 The Voice Foundation
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