Show HN: Turn images into audio that can be decoded with a spectrogramnsspot.herokuapp.com 9 pointsjupr2 months ago5 commentsSaveHideCopy link On HNComments−femto2moAn Orthogonal Frequency Division Multiplexing fax machine!−StizzurpXDD2moA good way to send encrypted pictures. Just convert the images into audio, and nobody would even think to look at the spectrogram of the audio file. Nice.−rotten2moBetter than playing a record backwards to find the hidden messages. Instead you can find hidden images in recordings.−shipped_it2moVery interesting!−gmerc2moPlease disable adblock for free use. lol.
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An Orthogonal Frequency Division Multiplexing fax machine!
A good way to send encrypted pictures. Just convert the images into audio, and nobody would even think to look at the spectrogram of the audio file. Nice.
Better than playing a record backwards to find the hidden messages. Instead you can find hidden images in recordings.
Very interesting!
Please disable adblock for free use. lol.