Internet free low bandwidth platform agnostic message platform using integrated microphone/speakers
- Tone - a chrome experement
- Code loosly based on qiuxiang's tuner site.
- chirp.io
Frequency-Shift Keying using three arbitrary frequencies (referenced as 0, 1, and M).
Two frequencies to pass binary (0 and 1) and one frequency for the start and end tones (M)
| Section | Pattern | Description |
|---|---|---|
| Preamble | M0M0M0M0 | Start marker / sync tone |
| Message | 1010101010... | Encoded data bits |
| Epilogue | M1M1M1M1 | End marker / stop tone |
Only the binary includes error correction