# On the spectrum:forensics:100pts
My friend has been sending me lots of WAV files, I think he is trying to communicate with me, what is the message he sent?
Attached files:
- message_1.wav (sha256: 069dacbd6d6d5ed9c0228a6f94bbbec4086bcf70a4eb7a150f3be0e09862b5ed)

[message_1.wav](message_1.wav)

# Solution
wavファイルのようだ。
問題名の通りスぺクトログラムを見てやる。
flagが書かれていた。

## DUCTF{m4by3_n0t_s0_h1dd3n}

Original writeup (https://github.com/satoki/ctf_writeups/blob/master/DownUnderCTF/On_the_spectrum).