Speech-Language Pathology, SRH University of Applied Health Sciences, Düsseldorf, Germany; Department of Phoniatrics and Pediatric Audiology, University Hospital Münster, University of Münster, Münster, Germany.
Human Communication Disorders, Universidade Federal de São Paulo -UNIFESP, São Paulo, Sao Paulo, Brazil; Centro de Estudos da Voz - CEV, São Paulo ,SP, Brazil.
J Voice. 2023 Sep;37(5):804.e21-804.e28. doi: 10.1016/j.jvoice.2021.05.005. Epub 2021 Jul 1.
The aim of the present study was to investigate the performance of the Acoustic Voice Quality Index (AVQI) and the Acoustic Breathiness Index (ABI) in synthesized voice samples.
The validity of the AVQI and ABI performances was analyzed in synthesized voice samples controlling the degree of predefined deviations for overall voice quality (G-scale) and breathiness (B-scale). A range of 26 synthesized voice samples with various severity degrees in G-scale with and without prominence of breathiness for male and female voices were created.
ABI received higher validity in the evaluation of breathiness than AVQI. Furthermore, ABI evaluated accurately breathiness degrees without considering roughness effects in voice samples and confirmed the findings of other studies with natural voices. Furthermore, ABI was more robust than AVQI in the evaluation of severe voice-disordered voice samples. Finally, AVQI represented moreover overall voice quality with an emphasis of breathiness evaluation and less roughness although roughness had a necessary component in overall voice quality evaluation.
AVQI and ABI are two robust measurements in the evaluation of voice quality. However, ABI received fewer errors than AVQI in the analyses of higher abnormalities in the voice signal. Disturbances of other subtypes of abnormal overall voice quality such as roughness were not demonstrated in the results of ABI.
本研究旨在探讨嗓音声学分析指标（AVQI）和嗓音声学粗糙感指标（ABI）在合成语音样本中的表现。
通过控制整体嗓音质量（G 级）和粗糙感（B 级）的预定义偏差程度，分析 AVQI 和 ABI 的有效性。为男性和女性嗓音创建了 26 个具有不同 G 级严重程度且具有或不具有粗糙感的突出度的各种严重程度的合成语音样本。
与 AVQI 相比，ABI 在评估粗糙感方面具有更高的有效性。此外，ABI 能够准确评估语音样本中的粗糙感程度，而无需考虑粗糙度效应，这与自然嗓音研究的结果一致。此外，ABI 在评估严重嗓音障碍的语音样本时比 AVQI 更稳健。最后，AVQI 虽然在评估整体嗓音质量时强调了粗糙感，但也代表了更全面的嗓音质量，尽管粗糙度是整体嗓音质量评估的必要组成部分。
AVQI 和 ABI 是评估嗓音质量的两种稳健测量方法。然而，在分析嗓音信号的较高异常时，ABI 比 AVQI 产生的错误更少。ABI 的结果并未显示其他类型的整体异常嗓音质量的干扰，如粗糙度。
