Audio Visualizers

Radial Spectrum

96 cyan radial bars radiate from a bass-driven pulsing core around a slowly rotating ring; driven by a synthetic signal or live mic input on click.

canvasmedium complexitymoderate motionclick

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Live demo — the real component, running in a sandbox. One self-contained HTML file, zero dependencies. Open it on the canvas →

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When to use it

Music or audio-themed hero backgrounds, podcast or live-audio UIs, ambient ambient screensavers needing synthetic motion with optional real microphone data.

When not to

Contexts where microphone permission prompts are intrusive or where CPU budget is tight on mobile — the 96-bar rAF loop runs every frame.

Working with an AI agent

Every component ships agent-ready metadata. An example instruction for this one:

Change accent color from cyan to violet by replacing ACC='#22d3ee' and all rgba(34,211,238,...) literals with rgba(167,139,250,...), and increase bar count to 128 by setting N=128.

Safe to edit

bar count (N=96)
accent color (ACC='#22d3ee')
ring radius fraction (R=Math.min(w,h)*0.22)
bar smoothing speed (0.22 synth / 0.5 live)
max bar length (maxLen=R*1.55)
synth peak positions (p1, p2, p3)

Keep intact

DPR-aware canvas sizing and setTransform
visibilitychange stop/start guard
prefers-reduced-motion static-frame fallback
IIFE wrapper

Known limitations

Microphone access requires HTTPS in production — works on localhost but fails on plain HTTP
Background color hardcoded to #07080d in CSS — must edit to change
No reduced-motion animation — only renders one static frame, no interactive fallback

audioradialspectrumcanvasmicrophonebarsvisualizer

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Waveform RiverMirrored cyan waveform ribbon scrolls right-to-left on dark; glowing dot marks the live head. Click LIVE to switch from synthetic signal to microphone.
Beat BloomCyan concentric rings bloom outward and particles burst radially on detected bass beats from a synth signal; a breathing center dot pulses continuously.