romanz/amodem

Health v2 · maintenance only

Flags: no_releases no_license

Adoption not part of the score

1047 stars · 137 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A Python library and CLI tool that transmits files between computers by modulating data into audio signals (OFDM) played through a speaker and demodulated from a microphone, enabling air-gapped communication. It supports bitrates up to 80 kbps over an audio cable with CRC-32 integrity checks.

Use cases

• transfer files between air-gapped computers via audio
• send data over an audio cable between two machines
• exfiltrate or import data from a machine with no network interfaces
• experiment with OFDM modulation and demodulation in Python
• build acoustic data communication into a Python application

When to choose

• you need to move small files to or from a truly air-gapped machine using only speakers and microphones
• you want a simple Python-based acoustic modem with configurable bitrates
• you need a higher-bandwidth alternative to QR-code or blinking-LED air-gap transfers

When to avoid

• you need fast, reliable bulk data transfer - audio transmission is slow (~10 kB/s max) and error-prone
• you need network-based file transfer between connected machines
• you require a production-grade communication channel with strong guarantees

Facets

library · maturity active

audio-processing serialization developer-tools networking security developer-tools hardware python windows cross-platform cli audio-modem air-gap ofdm data-exfiltration acoustic-communication file-transfer linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="romanz/amodem")