Fundamentals

What an audio-reactive avatar actually is

Not a video file, and not a puppet rig. An audio-reactive avatar is a live render driven by the loudness and rhythm of a voice — which is why it can change style instantly and export identically on any machine.

A render, not a recording

The distinction sounds pedantic until it changes what you can do. A video file of a glowing orb is fixed: one look, one length, one background. An audio-reactive avatar is a renderer — a function that takes the current time, an audio level between zero and one, and the discrete onsets of speech, and draws a frame.

Because it is a function rather than a file, switching from one style to another is instant. There is no re-render and no waiting. In the app you click a tile in the inspector and the avatar is a different thing on the next frame, still performing the same audio.

Three properties that follow from that

Audio-reactive. Every style responds to level and to syllable onsets. Quiet is not static — it is idle-alive, a slow drift or breath. Loud is expressive: Plasma Core lashes arcs outward, Liquid Metal splits off droplets that fall back in, Nebula fires a shooting star from its core.

Transparent-background safe. Styles draw nothing outside their own silhouette, which is what makes compositing work. Combined with the Broadcast preset's chroma-green background, the same avatar can be keyed over a screen recording, a slide, or a live camera feed.

Deterministic. Rendering is a pure function of time, input and seed. The same audio produces the same frames on any machine, every time. That is not a detail — it is what makes an editor export reproducible rather than approximately similar.

Picking a style is a brand decision, not a mood

The catalogue runs from the photoreal to the abstract: Bubble, the default, is a transparent soap film with thin-film iridescence that spawns concentric ripples when you speak. Voiceprint drops the sphere entirely for a scrolling strip of mirrored bars. EQ Ring is a badge of vertical bars that emits sonar ripples on loud moments. Pulse is a minimal breathing sphere with an orbiting satellite dot — the calm, premium assistant look.

Presets sit on top of the styles and save a whole configuration — colour, motion, audio response, particles — under a name, so a look you tuned once is one click away on the next video.