Afterglowscreensavers

White Noise Visualizer Screensaver

The White Noise Visualizer screensaver shows a calm, gently pulsing waveform inspired by soft background white noise. It is free, runs in your browser, and ESC exits.

Live preview

White Noise Visualizer screensaver — A pulsing waveform for a calm background hum.

Press ESC to leave fullscreen. Settings are saved in your browser only.

How the White Noise Visualizer screensaver works

The saver renders a layered set of soft waveform bands that pulse and drift at a slow, steady rhythm.

The bands use gentle randomized variation so the motion never feels mechanically repetitive.

The overall palette and pacing are designed to feel calming rather than stimulating.

No actual audio is played — it is a purely visual companion piece.

Why the noise is called white

White noise is a signal with a flat power spectrum: equal power in any frequency band of the same width in hertz. The name is an analogy with white light, which mixes all visible wavelengths. Its waveform is random from moment to moment, with no pattern to predict the next value, and the hiss of an untuned radio or a television without a signal is close to it.

It is one of a family of coloured noises. Pink noise has power density proportional to 1/f, falling by about 3 dB per octave, so each octave carries the same energy and it sounds deeper and softer than white noise. Brown noise (named after Brownian motion, not the colour) is proportional to 1/f squared, falling by about 6 dB per octave, and sounds more like a rumble. Steady broadband sound is often used to mask background speech and traffic, which is why white noise machines are sold for offices and bedrooms.

This page is a visual piece with no sound, so the rolling bands are inspired by the idea rather than by an audio signal. Real white noise would look like jagged static on an oscilloscope, which is not calming to watch, so the smooth waves here are an artistic interpretation. If you want actual noise, a dedicated audio player is the right tool, and keep volume at a comfortable level.

A worked example

The soft bands rise and fall in an unhurried rhythm, evoking the steady wash of a fan or rain sound without any real audio playing.

Settings & tips

Frequently asked questions

Does this play actual white noise audio?
No — it is a silent visual companion piece, not an audio player.
Is a key needed?
No — it is a pure generative animation.
Is it free?
Yes — free, no download, in your browser.
Is the pattern random?
Yes — gentle randomization keeps the motion from ever feeling mechanically repetitive.
What is the difference between white, pink and brown noise?
They differ in how power is spread over frequency. White noise is flat, pink noise falls by about 3 dB per octave (1/f), and brown noise falls by about 6 dB per octave (1/f squared), sounding lower and rumblier.
Why does white noise help mask sounds?
A steady broadband sound fills the frequencies of sudden noises, so a change such as a voice or a door stands out less against it.
Is white noise truly random?
Ideal white noise is statistically random, with no correlation between samples. Computers use pseudo-random generators that approximate it well enough for audio.

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