Web Audio API

How it Works:

1. ​AudioContext: The main entry point. It manages all audio nodes.
2. ​Nodes & Routing: * Source: The raw audio data from your file.
   • ​AnalyserNode: Pulls data from the audio without changing it, used for the visualizer.
   • ​GainNode: Acts as the volume knob.
3. ​The Visualizer Loop: requestAnimationFrame creates a 60fps loop that reads the frequency data and paints it onto the HTML5 Canvas.

​Suggested Next Step

​Would you like me to add a BiquadFilterNode to this code so you can add Bass Boost or Treble controls?

Web Audio API Workspace

Upload Audio File

Master Volume (Gain)

Upload a file to begin