Musical Steganography: Hiding Things in Music
summary
Shows concrete methods and working demos: implements substitution ciphers (German and French alphabets) and encodes text into notes using TidalCycles and Haskell, demonstrates backmasking by playing samples at negative speed, and hides images by converting bitmaps into audio with Coagula then recovering them with Sonic Visualizer. Attempts to auto-transcribe via ScoreCloud return far fewer notes than sent, so decoding is imperfect but usable. Cites historical examples from Bach to Aphex Twin and notes which tools succeed, which only partially work.
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chapters (7)
- 0:00Introduction and History
- 4:42Substitution Ciphers
- 13:50Tidal Cycles Demo
- 17:31Advanced Encoding Methods
- 24:05Backmasking and Reversal
- 30:38Tidal Backmasking Demo
- 31:30Hiding Images in Audio
