SpectrumNet - Real-Time Audio Spectrum Visualizer

SpectrumNet transforms real-time audio input into dynamic visual spectrums using C#/WPF. Combines advanced signal processing with modern rendering for immersive audio visualization.

✨ Key Features

🎧 Audio Processing

• Real-time system audio capture via WASAPI loopback
• Multi-window FFT analysis (Hann/Hamming/Blackman)
• Flexible spectrum scaling: Linear/Logarithmic/Mel/Bark

🎨 Visualization Engine

• 20+ Render Styles:
  • Bars: Vertical, Circular, LED Meter
  • Waveforms: Gradient, Heartbeat, Waterfall
  • Particles: Fire, Raindrop, Text Effects
  • Advanced: Voronoi diagrams, Spectrum fractals
• Dynamic color palettes with gradient effects
• Quality presets (Low/Medium/High) with manual override

⚙️ Customization & Control

• Display modes: Windowed/Always-on-Top overlay
• Configurable hotkeys (Capture start/stop, Mode toggle)
• Real-time adjustment of spectrum sensitivity/range

🚀 Quick Start

1. Launch SpectrumNet.exe
2. Click Start Capture to begin audio analysis
3. Use hotkeys:
   • Ctrl+O: Toggle overlay mode
   • Space: Start/stop visualization
   • Ctrl+P: Open control panel
4. Adjust settings via interactive preview

⚠️ Known Issues

Transparency Rendering Issues (Intel GPUs)

Symptoms:

• Partial loss of window transparency
• Visual artifacts in overlay mode
• Interface flickering

Common Cases:

• Intel HD Graphics (pre-2021 models)
• Hybrid graphics systems
• Drivers older than 2021

Workaround:

1. Force dedicated GPU usage via driver settings
2. Disable OpenGL acceleration:

   <!-- Replace in XAML -->
   <skia:SKElement /> <!-- Instead of SKGLElement -->