在噪声的测量与控制中,经常遇到的噪声是不稳定的,有时甚至呈现大幅度变动状况.因此需要测量噪声的等效连续声级L_(eq),或者测量统计声级L_x.假如使用一般声级计测量L_(eq)和L_x,需要投入大量的人力进行,并要对测量结果进行大量枯燥无味的计算,为此往往要在花上几个月的时间. Noise often encountered in the measurement and control of the noise is unstable, and sometimes even show significant changes in the situation, so the need to measure the noise of the equivalent continuous sound level L_ (eq), or measurement of sound level L_x If you use General sound level meter measurement L_ (eq) and L_x, need to invest a lot of manpower, and the results of a large number of boring calculations, which often take months to spend time.