At a distance of about 50 cm (0.5 m) the time delay for a signal reaching first one and then the other microphone from the side is approximately 1.5 msec (1 to 2 msec).

在距离约50厘米(0.5米)的时间延迟为一个信号，达到第一位，然后在其他麦克风从侧面大约是1.5毫秒(1到2毫秒)。

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As an application, we obtain an expression for the mean and variance of the first reaching time t.

作为应用，得到了首达时t的均值和方差的表达式。

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