Department of Communication Disorders, UNIFESP - Universidade Federal de São Paulo, São Paulo, Brazil; CEV - Centro de Estudos da Voz, São Paulo, Brazil.
SRH University of Applied Health Sciences, Düsseldorf, Germany.
J Voice. 2021 Jan;35(1):160.e15-160.e21. doi: 10.1016/j.jvoice.2019.07.024. Epub 2019 Aug 29.
Multiparametric indexes provide a more robust acoustic analysis of voice quality considering more than one acoustic parameter in the evaluation of sustained phonation and continuous speech. However, once the continuous speech is considered, differences among languages must be addressed.
To assess the concurrent validity and the diagnostic accuracy of the Acoustic Voice Quality Index version 03.01 (AVQI 03.01) in the Brazilian Portuguese.
The counting numbers 1-20 and the vowel /a/ of 150 subjects were used (37 nondysphonic; 113 with dysphonia). To reach higher precision of the AVQI, the length of the voiced parts of the continuous speech and the sustained vowel were equalized. Nine voice specialists performed the perceptual auditory judgment of the samples. However, only five listeners were chosen for further analysis based on their moderate to substantial intrarater reliability (Cohen's Kappa: 0.605-0.773) and their reasonable inter-rater reliability (Fleiss Kappa: 0.429). The index concurrent validity and diagnosis accuracy were analyzed with the Spearman correlation and the receiver-operating characteristic curve.
The AVQI 03.01 concurrent validity was high (r = 0.716). The coefficient of determination demonstrated that 51% of the vocal deviation can be explained by the acoustic analysis (r = 0.512). The diagnostic accuracy was excellent (90.4%). At a threshold of 1.33, the AVQI sensitivity and specificity were 78.8% and 90.6%, respectively.
The AVQI is a valid tool in the Brazilian Portuguese language. It can be used as a screening tool, for clinical follow-up and evaluation pre- and post-treatment/procedures. Voice specialist should be aware of false-negative and false-positive results of the AVQI, especially for screening purposes.
多参数指标在评估持续发声和连续言语时考虑了多个声学参数，从而提供了更稳健的语音质量声学分析。然而，一旦考虑到连续言语，就必须解决语言之间的差异。
评估 Acoustic Voice Quality Index 版本 03.01（AVQI 03.01）在巴西葡萄牙语中的同时效度和诊断准确性。
使用了 150 名受试者的数字 1-20 和元音/a/（37 名非发音障碍者；113 名发音障碍者）。为了提高 AVQI 的精度，连续言语和持续元音的浊音部分的长度进行了均衡。9 名语音专家对样本进行了感知听觉判断。然而，只有 5 名听众被选中进行进一步分析，因为他们具有中等至较大的组内可靠性（Cohen's Kappa：0.605-0.773）和合理的组间可靠性（Fleiss Kappa：0.429）。使用 Spearman 相关系数和受试者工作特征曲线分析了指数的同时效度和诊断准确性。
AVQI 03.01 的同时效度较高（r=0.716）。决定系数表明，声学分析可以解释 51%的声音偏差（r=0.512）。诊断准确性很高（90.4%）。在阈值为 1.33 时，AVQI 的敏感性和特异性分别为 78.8%和 90.6%。
AVQI 是一种在巴西葡萄牙语中有效的工具。它可以用作筛查工具，用于临床随访和评估治疗/程序前后。语音专家应该注意 AVQI 的假阴性和假阳性结果，特别是在筛查目的方面。
