The Web Audio API involves handling audio operations inside an audio context, and has been designed to allow modular routing. Basic audio operations are performed with audio nodes, which are linked together to form an audio routing graph. Several sources — with different types of channel layout — are supported even within a single context. This modular design provides the flexibility to create complex audio functions with dynamic effects.
The MediaKeySystemConfiguration.initDataTypes read-only property returns a list of supported initialization data type names. An initialization data type is a string indicating the format of the initialization data.