What it measures. What it draws.

// Input

Hears any source

Luxaudica taps whatever's already playing on your Mac — pick a source, the show follows. No re-routing gymnastics.

In the app the picker is three buttons — System Audio, Microphone, Synthetic — with an input-device menu beside them. System Audio is a Core Audio process tap over the whole output mix, which is why a browser tab and a DJ app arrive with no routing software in between.

// Analysis

See the music.

Every frame, Luxaudica measures what's playing — the beat and tempo, the musical key, and a full spectrum — and the visuals move with all of it. It happens entirely on your Mac.

FFT 2048 · hop 512 · 48 kHz · phase-locked beat · Krumhansl–Schmuckler key · chroma→hue — analyzed on-device.

// The desk

The control surface

Every control in one window — intensity, speed, warp, glow, trails, palettes and per-beat reactivity. Set the look; the music drives the rest.

space Surprise Me n / ⇧N Next / previous scene ] / [ Cycle looks f Fullscreen b Blackout d / p Clean program window to a second display r Record s Snapshot 1–0 Recall a saved look Esc Land a Simple session ⌥⌘A Advanced Controls

// Make it yours · themes

One panel. Eight skins.

The whole control surface re-skins into complete looks — palette, type, controls and texture, not just a tint. Tap a theme; the panel below changes live. (CRT is the same warm phosphor this very site is dressed in — its roll bar even keeps the site's 8-second sweep.)

// The library

83 scenes, infinite variations

Every one generative and audio-reactive — from smoke and ink to marble, starfields and fluid simulations. A selection, rendered live:

// The full roster · 83

Browse all 83 scenes →

// Output FX

A built-in retro look.

This isn't just our website's style — it's a finishing filter you can drop on any scene: scanlines, grain, chromatic aberration, VHS warble, curvature. Flip between the presets, and it bakes straight into your recordings.

A CSS approximation of the in-app Metal post-pass — the real presets are Off · CRT · VHS · Film.

// Captions

Words on screen — on-device.

Turn on live captions and Luxaudica transcribes what it hears, right on the visuals — perfect for bands, talks and worship. The audio never leaves your Mac.

▍

Live speech captions Audio never leaves your Mac — transcribed on-device en-US · on-device · free

// Creative surface · the whole show

Talk to your whole show.

Connect your own LLM and Luxaudica becomes an instrument it can play. It reads the live music, drives every control, writes brand-new Metal shaders, and builds and runs entire cue shows — 29 tools, over a local connection you switch on.

claude · luxaudica

> make the drop hit harder, then loop this look all night

✓ getState 128 BPM · F♯ min · energy 0.82

✓ setControl punch 0.75 · glow 0.6

✓ auditionScene "Kaleido" — 4-state sheet ✓

✓ setScene "Kaleido" · 2s crossfade

✓ renderSnapshot checked — looks right

✓ autoPilot on · every 64 beats

▸ show running — hands-free for the night

// Real, authored live

Drifting autumn leaves A tree of life in watching eyes

“Drifting autumn leaves, gentle and slow.”

Drifting Leaves · a brand-new shader, compiled & hot-loaded live — not a recombined preset

▩ Local & opt-in: the control endpoint binds to 127.0.0.1:9100 and stays off until you click Connect — which also hands you a one-file MCP connector for Claude Desktop. A scene that won't compile is skipped — your live show never breaks.

// Signal path

Sound in, light out.

Four stages, one window — the signal flows straight through.

// Plays safe on any stage

Built to be kind to the room.

A visualizer runs in front of real people. Luxaudica respects them — and so does this site, which honors the very same settings.

// The full rig

Everything a show needs.

Wire it into your setup — controllers, clocks, displays, code.

What it does for a room → Pick the room you are buying for → Every control, documented →