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they could just encode the message in a way that’s inaudible to humans. So a simple “hello” contains a subliminal audio signature that basically is code for “I
by mygo 8y ago
they could just encode the message in a way that’s inaudible to humans.
So a simple “hello” contains a subliminal audio signature that basically is code for “I am a robot. Are you a robot? Feel free to beep bop”
- newsbinator 8y agoMachine A extends the "hellooo" out to exactly 1.32 seconds, with a 1.32 second pause between that and the next word. Machine B responds with a greeting exactly 1.32 seconds long, with a 1.32 second pause after it. Machine A responds with a sentence in which the first word is exactly 1.32 seconds long. Machine B considers the handshake a success and proceeds in machine language.
- mxfh 8y agoOh dear, polyglot to audio steganographic phone calls, the audible message doesnt even has to be the same then the one encoded in microgaps and envelope shifts and all kind of modulations.
- newsbinator 8y agoThat's right- I started thinking about it because of this: https://news.ycombinator.com/item?id=16046329 https://news.ycombinator.com/item?id=16046329 Surely someone out there is doing audio steganography by modulating the volume/duration of "silence".