... I mean, this is very cool and definitely good work, but I'm pretty sure I remember transmitting data via audio quite a lot back in the day, and it sounded l

... I mean, this is very cool and definitely good work, but I'm pretty sure I remember transmitting data via audio quite a lot back in the day, and it sounded like BEEEEEEEEPBOOPCRRRSSSHHHWRRRRTTSSSFFFTHHHHH. (Ironically, I often then used the audio-to-data connection to download audio that had also been converted to data. I think I still have those old MP3s of Orbital's set at Glastonbury 1995 somewhere.) :-D