Help
SonoSig Help
How Audio Encoding Works
1
The selected audio file is decoded by the browser with the Web Audio API.
2
SonoSig fingerprints the decoded audio and signs that fingerprint with the SIWE message.
3
For WAV and AIFF exports, the payload is embedded into low-order PCM sample bits.
4
For M4A and OGG exports, the browser encodes audio locally and attaches the signed payload for sharing, while exact audio-hash verification is strongest with WAV and AIFF.
5
The finished file is generated as a browser download. No audio is uploaded.
Client-Side Privacy
Audio decoding, proof embedding, preview, export, and verification run in this browser. Audio files, decoded samples, waveform data, metadata, and generated output are not uploaded to a server.