Audio Stego

Listen Water.

While images are the most common carrier for steganography (think of a cat photo containing a hidden text file), audio offers unique advantages: audio stego

He switched tactics. He ran the file through a high-pass filter, stripping away the low rumbles. Then, he applied a phase inversion. Still nothing but snow on the screen. Listen Water

It was a blueprint. A schematic for a desalination plant in the Black Sea. stripping away the low rumbles. Then

The harsh static turned into a low, rhythmic thrumming. It sounded like a heartbeat. A very slow, very digital heartbeat.