A simple yet powerful web-based signal generator built with WebAudio API.

• Multiple Waveforms: Sine, Square, Sawtooth, Triangle.
• Noise Generation: White Noise, Pink Noise, and Brownian Noise implemented via AudioWorklet.
• Real-time Visualization: FFT (Fast Fourier Transform) visualizer to see the frequency spectrum.
• Multiple Oscillators: Add and mix multiple signal sources.
• State Persistence: Current configuration is automatically saved to the URL, making it easy to share or bookmark specific setups.
• Presets: Quick access to common setups (White, Pink, Brown noise, and a CM7 chord).

• Noise Node: Custom AudioWorkletNode implementation in noise-node.js provides high-quality noise generators (Box-Muller transform for white noise, Voss-McCartney algorithm for pink noise).
• URL Serialization: Configurations are serialized into URL parameters (osc=type-freq-gain) using URLSearchParams and history.replaceState.

MIT