Life & fun · alternatives · 2026

24 alternatives to TCP/UDP over sound

Full network stack over sound -- lwIP driver for libquiet - quiet/quiet-lwip

TCP/UDP over sound is a network driver that enables internet communication through audio. It implements the lwIP networking stack using libquiet, allowing devices to transmit data packets as sound waves. This tool is… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. TCP/UDP over sound launched in 2016; newer entries below may have overtaken it.

1. 1LT
   Libquiet – transmit data using sound▲127

   2016 · brian-armstrong.github.io · its alternatives →

2. 2
   TCP over sound on Android▲179

   Quiet for Android - TCP over sound. Contribute to quiet/org.quietmodem.Quiet development by creating an account on GitHub.

   2016 · github.com · its alternatives →

3. 3L1
   Libsoundio 1.0.0 – cross-platform audio input and output▲129

   2015 · libsound.io · its alternatives →

4. 4
   Overtalk▲286

   A free walkie-talkie for the web

   2024 · its alternatives →

5. 5
   A new protocol for packet radio including ECDSA and compression▲224

   📡 An AX.25 packet radio chat protocol with support for digital signatures and binary compression. Like IRC over radio waves. - brannondorsey/chattervox

   2018 · github.com · its alternatives →

6. 6
   Wave-share – serverless, peer-to-peer, local file sharing through sound▲49

   Serverless, peer-to-peer, local file sharing through sound - ggerganov/wave-share

   2018 · github.com · its alternatives →

7. 7RR
   Roc – Real-Time streaming over the network▲126

   I’m happy to announce the first release of Roc Toolkit, version 0.1.0! Roc provides a C API for real-time audio transport. The user just writes a stream to the one end and reads it from another end. Roc, in turn, performs encoding and decoding, and, more importantly, deals with the problems re

   2019 · gavv.github.io · its alternatives →

8. 8
   I made a tool to communicate data using the PC speaker▲189

   Hi HN, r2t2 is a command-line tool for transmitting data through sound using the PC speaker on the motherboard. The name of the tool is a reference to the R2-D2 robot from Star Wars :) In short, you type some message and it gets FSK modulated and transmitted via sound through the PC speaker. Note that this is the speaker/buzzer that you connect to the motherboard and not the regular speakers that you connect to the sound card. I also made a simple web page that listens to the sound emitted by r2t2 and decodes the received messages. The page can be used by simply opening it on your phone…

   2021 · github.com · its alternatives →

9. 9
   HiFiScan, a Python app to optimize your loudspeakers▲260

   Optimize the audio quality of your loudspeakers. Contribute to erdewit/HiFiScan development by creating an account on GitHub.

   2022 · github.com · its alternatives →

10. 10
    Sublive▲120

    Low-latency jamming over the internet

    2021 · its alternatives →

11. 11
    FreeTTS▲123

    Top TTS converter & audio editor to speed up your workflow

    2024 · freetts.com · its alternatives →

12. 12LL
    Low-latency jamming over the internet▲236

    2021 · sub.live · its alternatives →

13. 13
    Free alternative to Wispr Flow, Superwhisper, and Monologue▲277

    Free & fast alternative to Wispr Flow. Contribute to zachlatta/freeflow development by creating an account on GitHub.

    Feb 2026 · github.com · its alternatives →

14. 14
    I integrated my from-scratch TCP/IP stack into the xv6-riscv OS▲147

    Hi HN, To truly understand how operating systems and network protocols work, I decided to combine two classic learning tools: the xv6 teaching OS and a from-scratch TCP/IP stack. I'm excited to share the result: my own from-scratch TCP/IP networking stack running directly inside the xv6-riscv (https://github.com/pandax381/xv6-riscv-net) kernel. The project uses a modern virtio-net driver, allowing it to run seamlessly in QEMU and communicate with the host machine. Key features: - From-Scratch Stack: The core is powered by microps…

    2025 · github.com · its alternatives →

15. 15
    VolumeHub▲195

    Per-app volume control for macOS with no driver installs

    Feb 2026 · volumehub.app · its alternatives →

16. 16
    Wifi-based multi-room synchronized audio in ~300 lines of Python▲24

    2015 · github.com · its alternatives →

17. 17
    Olaf – Acoustic Fingerprinting on the ESP32 and in the Browser▲166

    Olaf - Acoustic fingerprinting on the ESP32 and in the Browser

    2020 · 0110.be · its alternatives →

18. 18
    WhisperWizard▲149

    Speech to text with smarter transcription

    2024 · whisperwizard.com · its alternatives →

19. 19
    Parametric Equalizer for PulseAudio▲119

    prettyeq is a system-wide paramateric equalizer for pulseaudio - kkuehlz/prettyeq

    2020 · github.com · its alternatives →

20. 20
    SoundSwipe▲73

    A game which doesn't require eyes

    2019 · soundswipe.sparkdevs.net · its alternatives →

21. 21
    New Monaural▲78

    Monaural Music Player for those with unilateral hearing loss

    2018 · newmonaural.com · its alternatives →

22. 22
    Waver – Messaging Through Sound▲49

    Tiny data-over-sound library. Contribute to ggerganov/ggwave development by creating an account on GitHub.

    2021 · github.com · its alternatives →

23. 23
    LCC – Open-Source Spatial Audio from Stereo Speakers▲103

    LCC (Localization Cue Correction) is a solution for spatialized audio through stereo speakers. LCC is a lightweight implementation of crosstalk cancellation so your left ear hears the left channel of audio, and your right ear hears the right channel of audio while ensuring unwanted audio signal colo

    2020 · github.com · its alternatives →

24. 24
    HiddenHUB▲80

    Wireless HD audio meets timeless design

    2015 · kickstarter.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →