Here is a free license project that will both make you laugh, but also break your ears as in the heyday of 56K modems with unbearable noise. Welcome to the wonderful world of chirp, where your data travels at the speed of sound & mldr; literally.

Indeed, “Chirp”Is a web application that allows data transmission via sound signals. Developed by “Solst/ICE”, this application converts text into audio frequencies which can be emitted by speakers and captured by a microphone. To do this, the project uses the audio web API to both generate but also capture sounds. Then, he analyzes them to carry out a kind of mapping between specific frequencies and characters, all completed with sound signatures to mark the start and end of transmissions.

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So personally, I tested between my phone and my computer and it doesn’t work every time. But when it works, it’s cool! Because it makes me think a little about audio steanography and you can easily play the secret agent with that.

It allows you to communicate without the need for network or internet connection, even if the objective here is more educational than anything else. The transmission speed is 15 to 20 characters per second and the range is only a few meters. However, the signal resists interference and noisy environments because it is on fairly high frequencies that we meet little, IRL.

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2 Air-Gapped computers could then communicate together and could finally go home. Or you could transmit a secret subliminal message in your next Rap & Mldr piece; Go to know & mldr;

In short, Chirp succeeds in the tour de force to resuscitate technology from the 70s by adapting it perfectly to the capacities of modern browsers. Once again, this project perfectly illustrates how ancient concepts can find a new life thanks to the web and the open source. Now, to test, go to chirp.hex.DanceIncrease the volume of your speakers, activate your microphone, and get started !!

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