Sound Brush
Sound Brush is a line-based audio-reactive scene in BeamTracer Audio Visualizers. Shape its response in your browser with settings, audio modulation, presets, and tips.
Sound Brush is a line-based audio-reactive scene in the Wire category. Open it from the left visualizer list, start an audio source, and use the settings panel to shape its response.
Open Sound Brush
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.
Presets and styles
Silk · Deep · Neon · Fine · Pulse · Ropes · Shadow · Aloboi · Resonance
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 |
|---|---|---|
| Waveform Scale | Core | Sets the visual waveform scale. |
| Emissive | Material | Sets how strongly the tube glows with its own color regardless of the lighting; higher values look brighter and flatter. Available when 3D Shading is on. |
| Base Hue | Colors | Moves the color around the color spectrum. |
| Saturation | Colors | Moves colors from muted toward vivid. |
| Brightness | Colors | Sets the visible strength of brightness. |
| Flow Speed | Animation | Sets how quickly flow changes or moves. |
| Distance | Camera | Sets how far the camera sits from the subject. |
Settings reference
Core
| Setting | Available values | What it changes |
|---|---|---|
| Ring Count | 20–120 | Sets how many visible elements are drawn. |
| Segments | 24–128 | Sets how many divisions form the visible shape. |
| Ring Spacing | 0.01–1 | Sets the spacing between visible elements. |
| Tunnel Radius | 0.5–3 | Sets the visible tunnel radius. |
| Tube Diameter | 1px–30px | Sets the thickness of the tube that draws each ring of the tunnel, in pixels. |
| Tube Quality | 4–16 | Trades visual detail against performance. |
| Waveform Scale | 0.1–2 | Sets the visual waveform scale. Use Assign modulation to choose a source. |
Material
| Setting | Available values | What it changes |
|---|---|---|
| Opacity | 0.2–1 | Sets the overall transparency. |
| 3D Shading | On / Off | Turns 3d shading on or off. |
| Metalness | 0–1 | Moves the surface from non-metallic toward metallic. |
| Roughness | 0–1 | Moves the surface from polished toward matte. |
| Emissive | 0–1 | Sets how strongly the tube glows with its own color regardless of the lighting; higher values look brighter and flatter. Available when 3D Shading is on. Use Assign modulation to choose a source. |
| Cast Shadows | On / Off | Turns cast shadows on or off. |
| Shadow Intensity | 0.2–2 | Sets the visible shadow intensity. |
| Light Distance | 0.5–3 | Sets the spacing between visible elements. |
| Echo Depth | 1–60 | Sets the visible echo depth. |
| Echo Falloff | 0.1–3 | Sets how quickly the live waveform shape fades out across the Echo Depth rings; low values carry the new shape deep into the tunnel and high values hand off to the older shapes quickly. Available when Echo Depth is above 1. |
Colors
| Setting | Available values | What it changes |
|---|---|---|
| Color Mode | HUE SHIFT, FREQUENCY, DEPTH, STATIC | Chooses the color mode or style. |
| Base Hue | 0°–360° | Moves the color around the color spectrum. Use Assign modulation to choose a source. |
| Saturation | 0–1 | Moves colors from muted toward vivid. Use Assign modulation to choose a source. |
| Brightness | 0.2–1 | Sets the visible strength of brightness. Use Assign modulation to choose a source. |
| Static Color | Color | Sets the static color. |
| Background | Color | Sets the background. |
Audio
| Setting | Available values | What it changes |
|---|---|---|
| Master Gain | 0.5x–3x | Sets how strongly the input signal affects master. |
| Bass Preamp | 0x–3x | Sets how much the bass is boosted before it drives any control set to follow the bass; 0x ignores the bass completely. |
| Mids Preamp | 0x–3x | Sets how much the midrange is boosted before it drives any control set to follow the mids; 0x ignores the mids completely. |
| Highs Preamp | 0x–3x | Sets how much the high frequencies are boosted before they drive any control set to follow the highs; 0x ignores the highs completely. |
| Smoothing | 0.5–0.95 | Balances immediate audio response against steadier motion. |
Animation
| Setting | Available values | What it changes |
|---|---|---|
| Flow Speed | 0.2–3 | Sets how quickly flow changes or moves. Use Assign modulation to choose a source. |
| Noise Amount | 0–0.5 | Sets the strength of the line distortion. |
| Noise Speed | 0.1–2 | Sets how quickly noise changes or moves. |
| Auto Rotate | On / Off | Turns auto rotate on or off. |
| Rotation Speed | 0.02–0.5 | Sets how quickly rotation changes or moves. |
Camera
| Setting | Available values | What it changes |
|---|---|---|
| Camera Mode | ORBIT, FRONT, BACK, ISO, SIDE, TOP | Chooses the camera mode or style. |
| Mouse Control | On / Off | Turns mouse control on or off. |
| Distance | 2–20 | Sets how far the camera sits from the subject. Use Assign modulation to choose a source. |
| Angle | 0°–360° | Sets the angle of the visible composition. |
| FOV | 30°–120° | Widens or narrows the camera view. |
Stars
| Setting | Available values | What it changes |
|---|---|---|
| Show Stars | On / Off | Shows or hides stars. |
| Star Count | 500–4000 | Sets how many visible elements are drawn. |
| Star Speed | 0–1.5 | Sets how quickly star changes or moves. |
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
- Route bass to line width or displacement, then use mids for motion so the shape stays musical instead of only flashing.
- Try assigning Bass to Waveform Scale, then compare Mid, High, and Volume while the demo track plays. The slider's live fill shows the signal reaching that control.