This seems really cool! I liked the part of story I could get to, but at some point the messages were not long enough, I would expect each block to be exactly 15 'beeps' either short or long, but some of them were only 12 or 13.
I had to guess which passage I was meant to go to, which meant reading parts of them to figure out if they made sense :/ Great idea though, and good use of the manual together with the game.