Bradley J S
J Acoust Soc Am. 1986 Sep;80(3):837-45. doi: 10.1121/1.393907.
Three different types of acoustical measures were compared as predictors of speech intelligibility in rooms of varied size and acoustical conditions. These included signal-to-noise measures, the speech transmission index derived from modulation transfer functions, and useful/detrimental sound ratios obtained from early/late sound ratios, speech, and background levels. The most successful forms of each type of measure were of similar prediction accuracy, but the useful/detrimental ratios based on a 0.08-s early time interval were most accurate. Several physical measures, although based on very different calculation procedures, were quite strongly related to each other.
作为不同大小和声学条件房间中言语可懂度的预测指标，对三种不同类型的声学测量方法进行了比较。这些方法包括信噪比测量、从调制传递函数得出的言语传输指数，以及从早期/晚期声比、语音和背景声级获得的有用/有害声比。每种测量方法中最成功的形式具有相似的预测精度，但基于0.08秒早期时间间隔的有用/有害声比最为准确。几种物理测量方法，尽管基于非常不同的计算程序，但彼此之间的相关性很强。
