🟩Beeps and Beeps

MISC | random tech | EASY

This flag is about knowing something about how data can be encoded in our world.

On fiber optic networks, data is encoded as light. (see https://www.youtube.com/watch?v=0MwMkBET_5I)

In telephone modems back from the 90's, data was encoded as sound similar to the following:

1019KB

dial-up-modem-01.mp3

Open

Hints

Once you listen you should be able to know what these sounds codes are. The only problem is that there are multiple standards of this code, but we did put a hint in the filename.

You could learn this system yourself, but that would take too long - is there an online tool that helps decode these messages?

Solutions

https://www.youtube.com/watch?v=fd372T1FvFo&list=PLFuCtJnW6S5iSDjIFa2QAjWi7BcKJBJhm