Module audio_device 

Audio device abstraction for microphone capture and speaker playback.

Requires the audio-device feature flag (backed by cpal). On headless systems without audio hardware, the module compiles but device enumeration returns empty lists.

Structs

AudioCapture

Audio capture stream that reads from a microphone.

AudioConfig

Configuration for audio capture/playback.

AudioDeviceInfo

Describes an audio device (input or output).

AudioPlayback

Audio playback stream that writes to a speaker.

TestToneGenerator

Test tone generator that produces audio frames for device testing.

Enums

DeviceSelector

Audio device selection criteria.

DeviceType

Type of audio device.

Functions

audio_unavailable_reason

Returns a reason why audio is unavailable, or empty string if available.

is_audio_available

Check if any audio device is available.

list_devices

List all available audio devices (input and output).

list_input_devices

List available input (microphone) devices.

list_output_devices

List available output (speaker) devices.