Audio Earth

Audio Earth is a space-themed audio-reactive scene in BeamTracer Audio Visualizers. Shape its response in your browser with settings, audio modulation, presets, and tips.

Default demo track · live audio-reactive settings

Audio Earth is a space-themed audio-reactive scene in the Space category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.

Open Audio Earth

Launch the visualizer with its matching left-nav entry selected.

Interesting facts

Audio Earth renders the planet itself — oceans, clouds, and city lights — as a controllable, audio-reactive instrument rather than a scientifically precise simulation of any single dataset.

A day is shorter than 24 hours. Earth's true rotation relative to the distant stars, a sidereal day, takes about 23 hours 56 minutes; the familiar 24-hour day is measured against the Sun and is slightly longer because Earth also moves along its orbit while it spins.
Ocean dominates the surface. Water covers roughly 70% of Earth's surface, making the oceans the single largest feature visible from space.
Clouds cover most of the planet at any moment. NASA satellite observations show clouds blanket around two-thirds of Earth's surface at any given time, with oceans staying cloudier on average than land.
City lights map humanity from orbit. NASA's Black Marble composites, built from the VIIRS day-night band on the Suomi NPP satellite, are sensitive enough to pick out individual cities, and researchers note nothing traces the spread of human settlement as clearly as nighttime lights.

These details are summarized from NASA's Global Ocean overview and cross-checked against NASA Earth Observatory's feature on Earth's cloud cover and NASA Earth Observatory's Black Marble night-lights feature.

Quick start

Start the demo track, choose a local audio file, or enable a live input.
Try a preset or style first, then open the section for the part of the image you want to change.
On a control with Assign modulation, open the source picker, choose a signal, and watch the slider's live fill.
Use Reset to Defaults whenever you want to return to the original look.

Presets and styles

Default · Deep Ocean · Aurora · Solar Storm · Neon City · Frozen Tundra

On a control with Assign modulation, select the activity icon to open Modulate with. Choose a named source, or choose — None to leave the control unmodulated. After you assign one, its name appears below the slider; select that name to edit the route, or use Clear modulation to remove it. The slider track shows the live signal reaching the control.

Modulated control	Section	What the route changes
Spin Speed	Core	Sets how quickly spin changes or moves.
Water Elevation	Core	Controls water elevation; higher values increase the effect and lower values reduce it.
Cloud Speed	Core	Sets how quickly cloud changes or moves.
City Lights	Material	Controls city lights; higher values increase the effect and lower values reduce it.
Bloom Strength	Material	Sets the visible bloom strength.
Base Hue	Colors	Moves the color around the color spectrum.
Beat Hue Speed	Colors	Sets how quickly beat hue changes or moves.
Camera Shake	Camera	Controls camera shake; higher values increase the effect and lower values reduce it.

Settings reference

Core

Setting	Available values	What it changes
Spin Speed	1–50	Sets how quickly spin changes or moves. Use Assign modulation to choose a source.
Show Water	On / Off	Shows or hides water.
Water Elevation	0–30	Controls water elevation; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source.
Wave Frequency X	1–50	Sets how tightly the water waves repeat along the X axis.
Wave Frequency Y	1–10	Sets how tightly the water waves repeat along the Y axis.
Wave Frequency Z	1–50	Sets how tightly the water waves repeat along the Z axis.
Water Transparency	0%–100%	Sets how transparent the water appears.
Show Clouds	On / Off	Shows or hides clouds.
Cloud Speed	0.01–1	Sets how quickly cloud changes or moves. Use Assign modulation to choose a source.

Material

Setting	Available values	What it changes
City Lights	0–200	Controls city lights; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source.
Bloom Threshold	0–1	Sets the level that must be crossed before bloom appears.
Bloom Strength	0–3	Sets the visible bloom strength. Use Assign modulation to choose a source.
Bloom Radius	0–2	Sets the visible bloom radius.

Colors

Setting	Available values	What it changes
Sun Color	WHITE, YELLOW, AUTO HUE	Chooses the sun color mode or style.
Base Hue	0–360	Moves the color around the color spectrum. Use Assign modulation to choose a source.
Hue Speed	0.01–1	Sets how quickly hue changes or moves.
Beat Color Change	On / Off	Turns beat color change on or off.
Beat Palette	PURPLE, WARM, COOL, RAINBOW, AUTO HUE	Chooses the beat palette mode or style.
Beat Hue Speed	0.01–1	Sets how quickly beat hue changes or moves. Use Assign modulation to choose a source.
Beat Threshold	0.01–4	Sets the level that must be crossed before beat appears.

Audio

Setting	Available values	What it changes
Master Gain	0x–3x	Sets how strongly the input signal affects master.
Bass Intensity	0x–2x	Sets the visible bass intensity.
Mid Intensity	0x–2x	Sets the visible mid intensity.
High Intensity	0x–2x	Sets the visible high intensity.
Smoothing	0–0.99	Balances immediate audio response against steadier motion.

Camera

Setting	Available values	What it changes
Auto Rotate	On / Off	Turns auto rotate on or off.
Camera Shake	0–3	Controls camera shake; higher values increase the effect and lower values reduce it. Use Assign modulation to choose a source.

Some controls appear only after you enable a related mode or style. The settings panel always reflects the options available for the current selection.

Tips for a better audio visualization

Use bass for the largest orbital or camera motion and highs for stars, sparks, or glow accents.
Try assigning Bass to Spin Speed, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.