What is audiocontrol.org?

Updated

audiocontrol.org is an open-source project that builds free, browser-based editors for vintage rack samplers and synthesizers. If you own hardware like a Roland S-330 or S-550, you can open its editor directly in a web browser — no installation required — and control the device with real-time hardware sync, patch browsing, and parameter visualization. The project is aimed at musicians and engineers who still use 12- and 16-bit samplers from the late 1980s and 1990s but no longer have access to the original, decades-old software.

What the site offers

The core idea, as stated on the site, is simple: "The hardware is on the shelf. The original software is thirty years gone." audiocontrol.org writes modern browser editors for that hardware, releasing them one device at a time.

Key characteristics:

  • Open source — source code, issues, and discussions are hosted on GitHub.
  • Web-native — editors run in a browser; no install step.
  • Free — the site presents the editors as free to open and use.
  • Device-by-device rollout — not every sampler is supported yet; the project adds devices as they are completed.

Devices available now

Two editors are live and can be opened in a browser today:

Device Year Specs Editor features
Roland S-330 1987 16-voice, 12-bit, rack-mount Real-time hardware sync, patch browsing, filter/envelope visualization
Roland S-550 1987 16-voice, 16-bit Shares the S-330 editor UI with an expanded feature set; more memory and VGA output

Both are Roland 12- and 16-bit rack samplers from the same family, so the S-550 editor builds on the S-330 interface rather than starting from scratch.

Devices in development

Three more editors are on the workbench. The site lists them as pending and directs users to GitHub Discussions for updates:

  • Akai S3000XL (1994) — 32-voice, 16-bit. The MIDI-over-SCSI protocol has been reverse-engineered; the editor is under construction.
  • Akai S5000 (1999) — 64-voice, 24-bit, with USB and 24-bit audio. Shares a parameter model with the S6000.
  • Roland JV-1080 (1994) — 64-voice rack synthesizer module with expansion board slots. Patch editor and librarian are in early exploration.

Because these are listed as in development, you should not expect them to be usable yet. The GitHub Discussions channel is the stated way to follow progress.

How to get started

  1. Identify your hardware. If you own a Roland S-330 or S-550, an editor is available now.
  2. Open the editor in your browser from the site — there is no download or install step.
  3. Connect your hardware and use the editor for patch browsing and parameter editing, with real-time sync.
  4. For anything still in development, follow the project on GitHub Discussions to know when it ships.

Community and support

The project points to three channels:

  • GitHub — source code, issues, and discussions for every editor.
  • Discord — chat with maintainers and other users.
  • YouTube — demos, walkthroughs, and teardown videos.

If you hit a bug or want a device prioritized, GitHub Issues and Discussions are the intended places to raise it.

Who this is for

audiocontrol.org is most useful if you already own one of the supported rack units and want a modern way to edit it without hunting down original software or running legacy operating systems. If your sampler is not on the available or in-development list, the project does not yet cover it — check the GitHub Discussions to see whether it is planned.