Some frequency plots are also available to validate the output of the algorithm against the real-world sound samples from the lab.

论文中也提供了一些频率图，用来和实验室采集的现实世界的声音样本进行比对，从而验证算法的输出结果。

So in this case, every one of the trials, we're going to take 16 samples from here, average them, plot it here, and then do a frequency plot.

所以在这种情况下， 每一次试验，我们将从这里取 16 个样本， 对它们进行平均， 在此处绘制， 然后绘制频率图。