> Seems quite useful until you remember both ends already need the original audio file in its entirety! That still seems quite useful. Steganography aims to o

> Seems quite useful until you remember both ends already need the original audio file in its entirety! That still seems quite useful. Steganography aims to obfuscate the presence of communication, not encrypt the data. You'd embed your ciphertext via the audio steganography. I can imagine this used for a dead drop by placing the encoded audio in a jukebox, or potentially even playing it over the radio/muzak system, if that isn't too lossy / the algorithm has enough error correction.