Sound-Field

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A VST3/AU audio plugin using JUCE 8's WebView integration to leverage React inside of JUCE.

Sound-Field 최신버젼 다운로드

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# Sound Field

Created by Michael Barzach

A creative audio visualizer plugin built with JUCE 8's WebView integration. The UI is a React + Three.js app running inside a native VST3/AU plugin.

The plugin has controls for stereo width and saturation, but the main focus here is the visualization: three reactive 3D modes that respond to the audio signal in real-time.

## Visualization Modes

### Particle Field

![Particle Field Visualization](https://raw.githubusercontent.com/mbarzach/Sound-Field/main/GIF/particle_field.gif)

A procedural particle system with 13,000+ points organized into 32 frequency-band columns. This mode can be thought of as an A-weighted particle "FFT". Each column responds independently to its spectral bin, creating an FFT-style visualization where particle height and turbulence reflect audio energy. The expansion parameter widens the field, excitation increases movement sensitivity, and mix blends between calm drift and full audio reactivity. See `ParticleField.tsx`.

### Dual Blob

![Dual Blob Visualization](https://raw.githubusercontent.com/mbarzach/Sound-Field/main/GIF/dual_blob.gif)

Two layered blobs representing dry and wet signals. Vertices are displaced based on 10-band spectral analysis, and colors shift across a heatmap (grey to blue to green to yellow to red) based on energy levels. The inner blob shows the input signal, the outer shows the processed output. See `DualBlob.tsx` and `dualBlobShaders.ts`.

### Entity

![Entity Visualization](https://raw.githubusercontent.com/mbarzach/Sound-Field/main/GIF/entity.gif)

A sphere with a solid core and transparent outer aura. The surface is deformed using 3D simplex noise, with displacement driven by spectral energy. The aura uses additive blending and responds to the mix parameter. Fresnel shading adds the rim glow effect. See `EntityBlob.tsx` and `entityShaders.ts`.

All visualization modes use `@react-three/fiber` and custom GLSL shaders.

## Why WebView?

JUCE 8's `WebBrowserComponent` lets you use the web stack for plugin UIs. This project uses React for components, Three.js for 3D rendering, Vite for hot reload during development, and TypeScript.

## Audio Processing

**Expansion** adjusts stereo width using M/S processing. Positive values widen stereo content by amplifying the side signal. Negative values narrow the stereo field toward mono, collapsing any L/R difference.

**Excitation** adds saturation using an asymmetric waveshaper that generates even harmonics. See `PluginProcessor.cpp`.

## JUCE + React Integration

Parameters sync between C++ and React using JUCE's Web Relay system. Each parameter has a relay on the C++ side connected to the APVTS, and a hook on the React side that subscribes to changes.

For visualization data (RMS levels, spectral bands), the C++ side emits events on a timer which React picks up via `useJuceAudioAnalysis()` in `useJuceEvents.ts`.

Example of parameter binding on the React side:

```typescript
// useJuceEvents.ts
export function useJuceSlider(id: string, defaultValue: number) {
    const [value, setValue] = useState(defaultValue);

useEffect(() => {
        const unsubscribe = window.__JUCE__.backend.addEventListener(id, (data) => {
            setValue(data.scaledValue);
        });
        return () => unsubscribe();
    }, [id]);

const setValueFromUI = (newValue: number) => {
        window.__JUCE__.backend.emitEvent(id, { value: newValue });
    };

return [value, setValueFromUI];
}
```

The C++ side needs `.withEventListener()` to receive these events and update the APVTS parameter.

## Project Structure

**C++ (Source/)**
- `PluginProcessor.cpp` - DSP, spectral analysis, parameter layout
- `PluginEditor.cpp` - WebView setup, data streaming to frontend

**React (WebUI/src/)**
- `App.tsx` - main component, canvas setup
- `components/DualBlob.tsx` - dual blob visualization
- `components/EntityBlob.tsx` - entity visualization
- `components/ParticleField.tsx` - particle field visualization
- `components/ImmersiveControls.tsx` - knobs, meters
- `hooks/useJuceEvents.ts` - JUCE backend communication
- `shaders/dualBlobShaders.ts` - GLSL for dual blob
- `shaders/particleFieldShaders.ts` - GLSL for particle field
- `shaders/entityShaders.ts` - GLSL for entity
- `utils/noise.ts` - 3D simplex noise for deformation
- `utils/spectralInterpolation.ts` - frequency band interpolation

## Building

**Requirements:** JUCE 8.0.3+, Xcode or Visual Studio, Node.js 18+

**Development (hot reload):**

1. Set `USE_DEV_SERVER = true` in `PluginEditor.h`
2. Run `cd WebUI && npm install && npm run dev`
3. Build the plugin and load it in your DAW

**Production:**

1. `cd WebUI && npm run build`
2. Set `USE_DEV_SERVER = false` in `PluginEditor.h`
3. Re-save the .jucer file in Projucer to regenerate BinaryData
4. Build the plugin

## License

MIT

Sound-Field

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