ESesher·Oct 30, 2026Submission
Ggwave – Data-over-Sound Library
1 points · Open discussionggerganov
ggwave
C++2020–2026
ggerganov / ggwave
ggwave
Tiny data-over-sound library
16Distinct people
32Mentions
0Explicit recommenders
7.9KGitHub stars
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What it is
Tiny data-over-sound library
GitHub
Where it is used
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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 year32 dated mentions
Observed mentions: 2020-12-18 08:48:24 UTC to 2026-10-30 21:48:39 UTC.
* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.
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 |
|---|---|---|---|---|---|
| 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 | 14 | 8 | 6 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 5 | 1 | 4 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 3 | 2 | 1 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2025 | 2025-01-01 00:00:00 UTC | 2026-01-01 00:00:00 UTC | 7 | 1 | 6 |
| 2026 (partial) | 2026-01-01 00:00:00 UTC | 2027-01-01 00:00:00 UTC | 2 | 1 | 1 |
What Hacker News says
32 sourcesOh this is really cool! Reminds me of ggwave [0].
It feels difficult to create hobbyist peripherals that interface with ones' phone -- trying to get cross-platform credentials to plug your own Arduino in via USB or connect via Bluetooth feels like a chore. I like the idea of phones communicating via some sort of audio library (ultrasonic maybe?) -- like R2-D2 chirping back and forth to communicate with other droids. I think this sort of thing could be part of a nice network of cross-device communication.
[0] - https://github.com/ggerganov/ggwave
In Show HN: Modembin – A pastebin that encodes your text into real FSK modem audioSee also: https://github.com/ggerganov/ggwave
In Transmitting data via ultrasound without any special equipmentHow good/bad would it be to have a poor man's tape archival, using standard cassette tapes (C90, C120, etc)?
For example, using something like ggwave [1]. I guess that would last way more than 5 years (although the data density is rather poor).
[1] https://github.com/ggerganov/ggwave
In Archival StorageCool to see this done with webaudio. Reminded me of https://github.com/ggerganov/ggwave
In Send Data with SoundAccording to the page they're using https://github.com/ggerganov/ggwave
In GibberLink [AI-AI Communication]This is the demo from this github repo: https://github.com/PennyroyalTea/gibberlink.
The encryption sheme is described in this link: https://github.com/ggerganov/ggwave
> This library allows you to communicate small amounts of data between air-gapped devices using sound.
In Two AI agents realize they're both AI and switch to a superior audio signal [video]Ggwave: Tiny Data-over-Sound Library
284 points · Open discussionDemo:
https://x.com/ggerganov/status/1894057587441566081
Base Communication Library:
https://github.com/ggerganov/ggwave
In Protocol for efficient over-the-phone communication for AI agentsAlso relevant: https://github.com/ggerganov/ggwave
In Google Tone: Broadcast any URL to devices within earshotGgwave: Message people over sound
136 points · Open discussionGgwave: Tiny Data-over-Sound Library
2 points · Open discussionHi HN,
I recently ported my data-over-sound library called "ggwave" to run on microcontrollers and I though it might be of
interest for people working on various IoT project. Below are some technical details and if you just want a quick demo,
you can watch this short demonstration:
https://youtu.be/aj_GLBtU3Vw
The library is written in C++, but to make it work on embedded devices I had to avoid using the standard library and
reduce the memory usage and memory allocations to a minimum. As a result, I am now considering porting it to plain C,
since I don't gain much from C++ at this point.
The communication protocols are based on frequency-shift keying (FSK) modulation. The library has built-in forward error
correction using Reed-Solomon codes and optionally supports Direct Sequence Spread which seems to improve the robustness
of the transm
Read the rest
ission. The protocols that are suitable for microcontrollers provide data rate speeds of about 5-10
B/second and the transmission is reliable withinh 0.5 - 1.0 m. They operate in the [1.0kHz - 2.5kHz] range, so your
device has to support a sample rate of at least 6000 Hz in order to be able to receive sound data.
I have tested the library using an Arduino RP2040 Connect board which has a built-in microphone. Also, I did tests using
an ESP32 microcontroller with external analog microphone. The ESP32 has a 12-bit ADC that can be used to process the
analog input from the microphone in real-time. Both devices are demonstrated in the video above.
The library also allows the microcontrollers to transmit data - you just need to attach a buzzer or a speaker to one of
the digital output pins and use a suitable mono-tone "ggwave" transmission protocol as demonstrated in the examples.
The project is open-source and available on Github [0] and provides many different examples. I am looking forward to
some interesting ideas of using this type of communication on low-end microcontrollers, so if you have one - definitely
let me know!
[0] - https://github.com/ggerganov/ggwave
Show HN: GGWave – Data over Sound for Microcontrollers
4 points · Open discussionI'm impressed by how compact this is, but if anyone is looking for a more "production-ready" solution, I've had great success with ggwave [0] - it even sounds pretty decent in the slow modes (as well as having an ultrasonic mode).
Obviously you won't be using any of this for regular communication, but there's a whole world of cool uses for sending short (up to a few bytes) messages over the air. And despite knowing dial-up modems exist, people are constantly impressed by novel applications of it.
[0] https://github.com/ggerganov/ggwave
In AudioTransmit – Transmitting data between computers using audioShowing the 15 most recent of 32 sources. Enable JavaScript to search and browse every indexed mention.