Web Audio

A high-performance browser API for synthesizing, routing, and manipulating audio directly in the web browser.

The Web Audio API gives developers precise control over audio operations inside an AudioContext, using a modular routing graph of AudioNodes to link sources to destinations. You can generate sound effects with oscillators, apply real-time spatial effects (like 3D panning), and extract frequency data using the AnalyserNode for visualizers. Because the heavy lifting runs on optimized, low-level browser code (often written in C++), it handles complex audio processing and synthesis with minimal latency, making it the standard choice for web-based games, interactive music apps, and digital audio workstations.

https://developer.mozilla.org/en-US/docs/Web/API/Web_Audio_API