## [Original/Source Writeup](https://bigpick.github.io/TodayILearned/articles/2020-10/b01lersbootcamp#echoes-of-reality)
We’re given an audio file. It is a low point CTF question. More than likely it is just a simple spectrogram problem (which it was). Open up in Sonic Visualizer, Audacity, w/e and enable the Spectrogram view (in Sonic Visualizer, Layer -> Add Spectrogram):
![](https://bigpick.github.io/TodayILearned/img/b01lers_bootcamp2020/echoes.png)
Flag is `flag{b3h1Nd_tH3_l0oK1nG_gl4s5}`