# Cyrinx (36kbps Acoustic Transport)

Project, Worldwide.

> 36.6 kbps of byte-verified data from a laptop speaker to a phone microphone, over the air. An acoustic modem for consumer hardware, with its measurements — and its dead ends — published.
>
> — in its own words, from cyrinx.org, read 2026-07-08

- Website: https://cyrinx.org/
- Listed since: 2026
- launched: 2026-07-09
- launch post: https://news.ycombinator.com/item?id=48839585
- hn score: 4
- domain created: 2026-06-10
- Last verified: 2026-07-09


## Sources

- Hacker News, "Show HN" — https://news.ycombinator.com/item?id=48839585, read 2026-07-09

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startup.is · https://startup.is/projects/cyrinx-36kbps-acoustic-transport · open data: /api/v1, /llms.txt