AudioModule

An AudioModule is a software component that performs a discrete unit of audio processing within a larger system. It receives audio input, applies a defined transformation, and outputs the result to other modules. Modules are designed to be reusable, configurable by parameters, and combinable into processing chains or signal graphs.

Typically, an AudioModule processes in real time, either in small blocks or sample-by-sample, depending on the host. It must meet latency and CPU constraints. Modules may be stateless, producing identical blocks, or stateful, maintaining histories, envelopes, or user settings across processing calls.

Common module types include oscillators and samplers for generation, filters and EQs for shaping, dynamics processors for compression, and time-based effects such as delays and reverbs, plus routing and utility modules for level control and metering.

AudioModules are used by hosts and frameworks that manage parameter automation, preset storage, and real-time scheduling. They may be implemented as plugins in formats such as VST, AU, or AAX, or as embedded components in hardware devices.

Development considerations include thread safety, deterministic processing, and minimizing latency. Clear interfaces and well-defined parameter ranges improve usability. Cross-platform portability, licensing, and compatibility with other modules and hosts are important.

AudioModules are central to digital audio workstations, live sound processing, game audio engines, and embedded devices, enabling flexible sound design and scalable signal paths.