Test Pattern
Test Pattern is a pixel-grid performance visual in BeamTracer Audio Visualizers, built on WebGPU. Settings, audio modulation, presets, and tips.
Test Pattern is a pixel-grid performance visual in the Matrix LED category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.
Open Test Pattern
Launch the visualizer with its matching left-nav entry selected.
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.
Audio modulation
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 |
|---|---|---|
| Scroll Speed | Pattern | Sets how quickly scroll changes or moves. |
| Hue Shift | Pattern | Moves the color around the color spectrum. |
Settings reference
Pattern
| Setting | Available values | What it changes |
|---|---|---|
| Scroll Speed | 0led/s–60led/s | Sets how quickly scroll changes or moves. Use Assign modulation to choose a source. |
| Hue Shift | 0°–360° | Moves the color around the color spectrum. Use Assign modulation to choose a source. |
| Trail Fade | 5–100 | Sets how long trail fade remains visible. |
| 16-Band Spectrum Strip | On / Off | Turns 16-band spectrum strip on or off. |
| Flash Border On Beat | On / Off | Turns flash border on beat on or off. |
| Always-On Border Frame | On / Off | Turns always-on border frame on or off. |
LED Panel
| Setting | Available values | What it changes |
|---|---|---|
| LED Pitch | 6px–40px | Controls LED pitch; higher values increase the effect and lower values reduce it. |
| Dot Gap | 0–0.6 | Sets the spacing between visible elements. |
| Glow | 0–2 | Sets the visible strength of glow. |
| Brightness | 0.2–2 | Sets the visible strength of brightness. |
| LED Profile | RGB PANEL, RED BADGE | Chooses the LED profile mode or style. |
| Unlit LED Color | Color | Sets the unlit LED color. |
Audio
| Setting | Available values | What it changes |
|---|---|---|
| Master Gain | 0x–5x | Sets how strongly the input signal affects master. |
| Smoothing | 0.01–0.8 | Balances immediate audio response against steadier motion. |
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 large fills or zoom and highs for small pixel detail; this reads clearly even on a distant screen.
- Try assigning Bass to Scroll Speed, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.