#Audio Problems:
```
wget -c https://play.icec.tf/problem-static/audio_problems_210b88f2232e1c9d770bb5d2069c47aabb86301b0adc7ad606956394a00f298b.wav -O audio_problems
```

Basta abrir o arquivo usando o sonic-visualiser e adicionar o layer de Spectogram, e a flag apareceria nesse layer.
IceCTF{y0U_b3t7Er_l15TeN_cL053lY}