Three tools for hiding data inside audio and video. Mix cipher tracks into carrier audio, encode images into spectrograms, or embed secret audio into video files. Everything runs locally — nothing leaves your browser.
Mix an encoded cipher WAV into any carrier audio — music, ambience, speech, or a silent track. The cipher hides inside the sound at a low volume, inaudible to casual listeners but readable by FFT analysis or the AudioCipher decoder.
5–20% is the sweet spot: the cipher is inaudible under music but fully readable by FFT analysis. Higher values make it more audible but harder to miss when scanning.
Ambient music, white noise, rain recordings, or simple instrumental tracks. Busy tracks with lots of high-frequency content can mask the cipher; simpler carrier = easier decode.
Load the mixed WAV into the AudioCipher decoder, set the correct cipher mode, and run the FFT analysis. The cipher will be recovered even under moderate carrier volume.