5/26/2023 0 Comments Subliminal messaging in songs![]() ![]() If the data wasn’t masked by the music, it would sound like random static mixed with a series of unpleasant beeps. ( Van Halen and Queen are noted as good examples of bands that have more loud, distracting notes to hide these changes in the songs smooth jazz, on the other hand, would probably work the worst.) The human ear wouldn’t notice the data contained in the music-without the assistance of their device to decode it. To store the data, Tanner and Eichelberger make minimal changes to the music without sacrificing any noticeable musical quality of the song. Once you have the data, you could get access to the coffee shop’s Wi-Fi (or website or message) without having to enter a password on your device.Īs the Daily Beast reported, the data is transferred in at roughly 400 bits per second with a margin of error, the transfer rate is more likely around 200 bits, which is about 25 characters-the length of an average Wi-Fi password or website URL. The background music playing is Van Halen’s “And the Cradle Will Rock…” (Not a randomly picked song, but the researchers said this tune is good for containing data.) Using your smartphone’s built-in microphone to receive the data, the music could contain access data for the local Wi-Fi network, a website or a short message (“Drink More Coffee”). (They don’t, but some people do.) Think of the concept more like an audio version of a QR code scanner or the metadata that can be found stored in a digital photo.Ĭase scenario: You’re at a public place like, say, a coffee shop. This technology is basically the dog whistle of data sharing, although dogs aren’t involved-unless they have a smartphone and need an encrypted Wi-Fi password. ![]() Two Ph.D students Simon Tanner and Manuel Eichelberger, from the Swiss Federal Institute of Technology in Zurich, spent six months creating a method to send data hidden in music-and it’s undetectable to the human ear. Researchers in Switzerland have now developed a technique for embedding data in music and transmitting it to a smartphone. ![]()
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