A stage of OSC-1. It works the same on its own page as it does in the chain — same parameters, same paths.
Reverb
A room, approximated cheaply.
Audio and MIDI
Browser session
Audio is stopped.
Input · MIDI keyboard
Your keyboard is a keyboard. Middle row plays the white notes, top row the black ones. Z and X change octave. Keys are ignored while you are typing in a field.
Reverb
A simple algorithmic reverb - room size, damping, wet - at the end of the chain where a room belongs. Not a convolution, and not pretending to be one.
Parameters
Reverb
These knobs move the module's published schema, but the preview engine only renders OSC Mini, FX Mini and the OSC-1 chain — so they won't change what you hear yet.
Output · Audio signal
The signal leaving Reverb, tapped after the output stage. It's a picture of what your speakers are getting.
About
A simple algorithmic reverb - room size, damping, wet - at the end of the chain where a room belongs. Not a convolution, and not pretending to be one.
Take it into your DAW.
Same DSP as this page. The plugin isn't a rebuild — it's the identical kernel from the identical TypeScript source, compiled native instead of to WASM.
Free forever, no account, and playing it in the browser will never ask you for one. VST3 and standalone today; AU and CLAP are on the roadmap.
Every knob, and what it actually does.
Generated from the module's parameter schema — the same source as the web UI, the worklet transport and the VST3 parameter table, so it cannot drift.
| Param | Range | Default | Units | What it does | Automatable |
|---|---|---|---|---|---|
| Reverb | |||||
Room Sizereverb-stage.roomSize | 0 … 1 | 0.7 | — | Length of the tail. Small values are a booth, large ones are a hall you should not be in. | Yes |
Dampingreverb-stage.dampening | 20 … 20000 | 3000 | Hz | Where the tail starts losing its top end. Low values are a carpeted room; high values are tiled and unforgiving. | Yes |
Mixreverb-stage.wet | 0 … 1 | 0.3 | — | Level of the tail against the dry signal. | Yes |
Parameter paths (filter.cutoff) are what you'll see in your DAW's automation list and in the SDK. Same names everywhere.
How it works.
The preview builds a decaying noise impulse response from Room Size and Damping and convolves the wet path against it, in parallel with the dry path. Changing Room Size or Damping regenerates the impulse and swaps it in.
This is the cheapest honest reverb there is, and it is not the algorithm Space Mini will ship. Room Size maps to tail length and Damping to a low-pass on the tail; there are no early reflections and no modulation in the tail.
It's yours to read and to fork.
Research preview
npx codex clone reverb-stage
npm run devThe codex CLI name is proposed, not shipped. That command gives you this module's DSP, schema, presets and UI as a local project — change a number, hear it immediately.