[quote=Hint]This challenge follows basic steganography techniques. Be aware of audio analyzing methods and make sure you don’t over think the concept behind it.[/quote]
Very bad hint in my opinion but,
If you heard about Cicada 3301it’s one of the challenge here.
If you can already read the file, you notice something upon the words. I wonder what are those weird dots :)
If you need more help PM me, cause it will be a too big spoiler here.