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Products that do what A 16-control subtractive synth for microcontrollers (39k ELF, web demo) does

This toy retro synth installs and runs on esp32-s3 or p4 as an ELF file under BreezyBox firmware. It uses my work-in-progress immediate mode TUI library in C. Web-based version via emscripten: https://mini000.itch.io/beeper Source code: https://github.com/valdanylchuk/beeper Demo video running on Tanmatsu (esp32-p4): https://www.youtube.com/watch?v=uCH9XYZ7QB0 The main challenge I was going for was actually to find a nice minimal set of controls for a subtractive synth. Usually there are 40-50 of them in "simple" synths; I ended up with 16.…

  1. 1T3
  2. 2AJ

    2016 · alexnisnevich.github.io

  3. 3TF

    2018 · tones.fm

  4. 4

    The latest synth from Teenage Engineering

    2023

  5. 5PP

    Write up of an embedded project I made to control my analogue synthesizer. Happy to answer any questions or provide any further details of this project if wanted.

    2024 · doug.lon.dev

  6. 6T1
  7. 7TZ
  8. 8
    io808122

    The classic drum machine synthesizer brought to the web.

    2016

  9. 98B
  10. 10

    8-Bit retro sound fx generator

    Dec 2025

  11. 11OB
  12. 12IB

    2020 · timdaub.github.io

  13. 13IJ

    Hey all. For the last few years, I have been developing a software synthesizer as a side project. It's taken longer than I both hoped and feared, but earlier this week I finally shipped 1.0. Details about the synth itself are up on my website, https://lhiaudio.com/. For those who are unfamiliar, in music production, there are host applications (such as Logic Pro, Ableton Live, or REAPER) in which most of the work (such as recording or sequencing MIDI data) is done. These applications generally have some built-in tools for the actual generation and processing of audio data, but…

    2018

  14. 14AA

    Hey y'all, So - the main idea of this is to make a WebAudio synthesis/sequencer tool which humans can use via the UI, but where the big unlock is for agents to drive with MCP It's semi decent as "make a groovy jazz track", especially for retro sounds - but the real use case is more like "make a jetpack whoosh effect I can control via code at runtime - where the sound changes based on character health or how much fuel is left" In other words, the target audience is not musicians (except maybe of the Max/MSP sort), but more like creative coders who want to shape the sound iteratively…

    Jun 2026 · audio.awsm.fun

  15. 15

    I have been entranced by Berlin School music for years. I love those evolving and interwoven arpeggios. Latching an arp is often my favorite way to noodle on a synth, and yes it’s because I can’t play to save my life. Last month I got tired of waiting for someone else to build my dream arp machine, so I built my own in the form of a web synth. It is purpose-built for sculpting and performing with melodies. I call it the AM-1 Arpeggio Machine. My next goal is to port the web engine into hardware format (using the Daisy Seed). But in the meantime, since the web app is perfectly usable, I…

    23d ago · crux.garden

  16. 16IV

    So, I've never written a line of Rust in my life. I wouldn't know an `&mut this` from a mutandis. But I saw a tweet about a month ago that said, in this new era of AI, you'd be able to just take a library that you love, throw a TUI around it, and call it an app. So I spent about 200 bucks last month, here's what I came up with: Imbolc is a DAW that runs entirely in your terminal. It talks to scsynth over OSC and ships 58 instruments and 39 effects. VSTs are a work in progress, also GarageBand loops if you want to recreate "Umbrella". The codebase is about 60k? lines of Rust across 5 crates,…

    Feb 2026 · github.com

  17. 17OA
  18. 18PM
  19. 19SR
  20. 20OB
  21. 21IB

    Hey HN! Last week I was working on a website and needed a way to synchronise visuals with live music. I've used MIDI controllers for this before, but I am travelling right now and don't have mine with me. So I had the crazy idea to build a browser extension that uses the keyboard as input and includes a sequencer. I gave myself 24 to work on it. It ended up taking longer (of course), specially since I ended up creating a demo, a small landing, docs, and an intro video. Took me one week from idea to launch (pushed quite a bit tbh). Features: - Works as a browser extension. Atm distributed…

    2024 · minitap.io

  22. 22OS
  23. 23IL

    The MIDI controller I wanted didn't exist, so I built it. I: - posted it to reddit, got 50k views, sold a few (including to some big names in the EDM world) - used it in a session with a Wu Tang affiliate (got paid 30 chicken wings, all flats) - got banned from Instagram in 48 hours, right after one of my favorite producers followed my account. Build Details: - 2.0mm 5052 powder coated aluminum body, modeled in fusion, laser cut and bent by sendcutsend - Solid walnut endcaps - SLA keycaps - gateron switches - custom switch matrix pcb - custom c++ firmware - rp2350 mcu - i2c oled display -…

    Feb 2026

  24. 248S

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