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fsk-modulation
Here are 3 public repositories matching this topic...
An offline, air-gapped messenger that transmits data via ultrasonic sound waves (19kHz) using the Web Audio API. No Internet or Bluetooth required. Built with Next.js 16 & PWA
react javascript pwa offline-first nextjs messenger ultrasonic digital-signal-processing web-audio-api data-over-sound air-gapped fsk-modulation
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Jan 7, 2026 - JavaScript
An air-gapped acoustic data transmission engine that streams digital payloads over inaudible, near-ultrasonic sound waves using advanced DSP and SECDED error correction
python signal-processing dsp fft covert-channel hamming-code software-defined-radio error-correction data-over-audio air-gap acoustic-communication fsk-modulation near-ultrasonic-audio-transmission
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Updated
Mar 22, 2026 - TypeScript
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