Department of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina 29208, USA
J Acoust Soc Am. 2018 Jun;143(6):EL449. doi: 10.1121/1.5041466.
Intelligibility was measured in speech-modulated noise varying in level and temporal modulation rate (TMR). Acoustic analysis measured glimpses available above a local signal-to-noise ratio criterion (LC). The proportion and rate of glimpses were correlated with intelligibility, particularly in relation to masker level or TMR manipulations, respectively. Intelligibility correlations for each metric were maximized at different analysis LCs. Regression analysis showed that both metrics measured at -2 dB LC were required to best explain the total variance (R = 0.49) for individual sentence intelligibility. Acoustic conditions associated with recognizing speech in complex maskers are best explained using multidimensional glimpse metrics.
清晰度在言语调制噪声中进行测量，该噪声的水平和时间调制率（TMR）不同。声学分析测量了局部信噪比标准（LC）以上的可用瞬间。瞬间的比例和速率与可懂度相关，特别是与掩蔽器水平或 TMR 操作相关。对于每个度量标准，可懂度相关性在不同的分析 LC 下达到最大值。回归分析表明，在-2dB LC 下测量的两个度量标准都需要用来最好地解释个体句子清晰度的总方差（R=0.49）。使用多维瞬间度量标准可以最好地解释在复杂掩蔽器中识别语音的声学条件。
