基于蒙洛特实验，通过不同的信噪比，得到信号比和均方根误差的实验结果。-Based on the Mengluote experiment, through different signal to noise ratio, experimental results are obtained to signal ratio and the root mean square error.

方根幅值是计算裕度指标与波性指标的必要部分，本文件将其独立做成了一个子VI，方便labview程序调用。希望对小伙伴有所帮助！(The root mean square amplitude is a necessary part of the margin index and the wave index. This document makes it a sub VI, which is convenient for LabVIEW program call. Hope to help sma

计算声压级平均值的四种方法：算术平均法，声压均方根平均法，能量平均法等(Four methods to calculate the average of sound pressure level are arithmetic average method, pressure square root mean method, energy averaging method and so on)