Description

Morse code is well known. Can you decrypt this? Download the file here. Wrap your answer with picoCTF{}, put underscores in place of pauses, and use all lowercase.

Solution

Reading the description, the contents of the file must be written with morse code.
Morse code" is a combination of codes of different lengths, such as "・・・--・, ・-・," to represent letters and numbers.
It can be solved quickly using the following site.

https://morsecode.world/international/decoder/audio-decoder-adaptive.html

Now you have a flag. Please replay several times to avoid accidental conversions. Don't forget to lowercase the string and replace spaces with underscores (_).

Enclose wh47_h47h_90d_w20u9h7 with picoCTF{} and submit it.