RKrkagerer·Feb 25, 2025
See also: https://github.com/romanz/amodem
In Ggwave: Tiny Data-over-Sound Libraryromanz
amodem
Python2016–2025
romanz / amodem
amodem
Audio MODEM Communication Library in Python
6Distinct people
8Mentions
0Explicit recommenders
1.1KGitHub stars
What to know before exploring
What it is
Audio MODEM Communication Library in Python
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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Also in these discussions
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 3:56:07 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year8 dated mentions
Observed mentions: 2016-09-02 21:25:24 UTC to 2025-02-25 22:50:16 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 1 | 0 | 1 |
What Hacker News says
8 sourcesThis will get you started:
Tony Fisher wrote V.32 soft modem stack for SGI Indy back in 1996. York University couldnt handle hosting whole 8 megabytes of his stuff https://www.cs.york.ac.uk/news/fisher/home-page but at least they had the decency to upload it to github instead of just deleting https://github.com/university-of-york/cs-www-users-fisher/tr... Randy Rossi rewrote this project and got working V.21/23 https://github.com/randyrossi/fisher-modem
Fabrice Bellard, because of course he did :), implemented his own version all the way to V.34 with parts of V.90 https://bellard.org/linmodem/ Currently actively maintained by Osmocom project https://osmocom.org/projects/linmodem "In Late 2021 we started a project to support AMR_Modem_Riser cards via a custom break-out board (#5294) and an associated FPGA softcore to interface the AC97 mas
Read the rest
ter interface with USB (audio)."
V.21 modem implemented in Gnu Radio https://web.archive.org/web/20170627151353/http://aaronscher...
amodem - good source of ready made modulation implementations https://github.com/romanz/amodem
minimodem- simple radio link FSK modem https://github.com/kamalmostafa/minimodem
audsl - leased line project, not compatible with standard modems https://www.araneus.fi/audsl/ but might give some ideas.
Reminds me of amodem https://github.com/romanz/amodem
In Show HN: I made a tool to communicate data using the PC speakerThanks for mentioning the octocouplers implementation, it looks very interesting and I'll look it. Other options I'm aware of to avoid USB and complex drivers/protocols:
- Scanning QR codes (for example https://air-gap.it/)
- Audio codes (for example https://github.com/romanz/amodem)
In State of Linux Desktop SecurityAudio Modem Communication Library in Python
100 points · Open discussionYes, it is very much possible. Take a look here: https://github.com/romanz/amodem/blob/master/README.rst
The transfer speed and noise are, obviously, too low/high to make any practical use out of this, but it's a cool experiment anyways.
I remember reading about a exploit/virus for BIOS that could coordinate an attack with infrasound, but I can't find any link.
In The sound of the dialup, pictured (2012)https://www.araneus.fi/audsl/
https://github.com/romanz/amodem
http://aaronscher.com/GNU_Radio_Companion_Collection/Audio_M...
http://www.windytan.com/2012/11/the-sound-of-dialup-pictured...
negotiation protocol: https://www.itu.int/rec/dologin_pub.asp?lang=e&id=T-REC-V.8b...
http://goughlui.com/2017/05/30/project-the-large-collection-...
edit: you and me both :) I,v been semi obsessed with writing my own soft modem ever since I saw Oonas sound of dialup writeup.
In The Wonderful WiFi232: BBSing Has Never Been EasierTrue Air-Gapped Communications in Python
2 points · Open discussion