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micro-wakeword / guide

Feature flags & platforms

Features

Section titled “Features”

The default listener feature enables:

  • CPAL input-device capture;
  • channel downmixing;
  • Rubato sample-rate conversion;
  • Listener, ListenerBuilder, AudioDevice, and available_input_devices.

Disable it when the application supplies correctly formatted audio:

[dependencies]
micro-wakeword = { version = "0.1", default-features = false }

Detector, model parsing, feature extraction, inference, and runtime selection remain available.

Platform matrix

Section titled “Platform matrix”
Platform Compiles Microphone backend Bundled TFLite runtime
Windows x86-64 Yes WASAPI through CPAL Yes
Linux Yes ALSA through CPAL by default No—supply one
macOS Yes CoreAudio through CPAL No—supply one

Windows uses an embedded, checksum-verified TensorFlow Lite 2.17.1 DLL and extracts it into the user’s local application-data directory. Other targets need Runtime::Path, Runtime::System, or an environment override.

Build requirements

Section titled “Build requirements”

The crate compiles the TensorFlow microfrontend and KissFFT C++ sources. A working C/C++ compiler toolchain is required even when the microphone feature is disabled.

Platform support describes current build and runtime wiring, not a guarantee that every audio device or driver exposes a supported stream configuration. Handle Error::Audio when opening user hardware.