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There was a research paper on doing data-over-sound with sounds that were designed to be pleasing to humans.

The demos sounded like little R2D2 blips and sputters.

Perhaps a researcher for Microsoft or something.

Anyone know the paper I'm talking about? I can't find it.

I wish I knew the paper, but https://github.com/chirp was a proprietary data-over-sound-through-air implementation that worked pretty well and sounded really cute (to my ears, anyway). It's not a paper, but there's this https://www.scientia.global/wp-content/uploads/2017/10/Chirp...

There are a lot open source one:

https://github.com/quiet/quiet-js

Remember seeing them quite a bit a few years ago.

In the spirit of abusing an error correction mechanism for aesthetics (see: QR codes with pictures in them, javascript without semicolons) could you do that here? How much abuse can the generated signal take?

Just listening to the samples here they're really not that far off. Could probably use a little softening at the edges on the higher tones but it's nowhere near as unpleasant as it could be.

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