Ggwave: Tiny Data-over-Sound Library

Re:Ggwave: Tiny Data-over-Sound Library by ggerganov on Friday February 12, 2021 @10:47PM (#26121234)

Thanks for posting this - I'm the author. I recently posted this to Show HN with a bit of background about the project [0].

My next goals for ggwave is to improve the mobile SDKs and provide more examples. If you want to help out - check out this issue [1].

I am also planning to add some even lower bit-rate protocols, but make them more robust and hopefully remove the sound markers.

- [0] https://news.ycombinator.com/item?id=25761016

- [1] https://github.com/ggerganov/ggwave/issues/2

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Re:Ggwave: Tiny Data-over-Sound Library by amelius on Saturday February 13, 2021 @07:53AM (#26123334)

Have you looked at other types of modulation? Like spread-spectrum:

https://en.wikipedia.org/wiki/Spread_spectrum

This would potentially give many nice features including superimposing multiple signals, so you can have full-duplex and more people can use the audio channel at the same time.

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Re:Ggwave: Tiny Data-over-Sound Library by ggerganov on Saturday February 13, 2021 @08:29AM (#26123492)

Looks interesting. I haven't tried other fundamentally different approaches different than the one I am currently using. I only recently found that my approach is very similar to DTMF, but I use 6 tones instead of 2 and I have sound markers and error correction integrated in the protocol.

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Re:Ggwave: Tiny Data-over-Sound Library by zcw100 on Saturday February 13, 2021 @07:02PM (#26128308)

Fountain codes?

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