AudioProbe

Records audio from the microphone to a file.

Used for the MediaSamplingPackage.AUDIO measure. Recording starts on onResume and stops on onPause. On stop, the probe adds an AudioMedia measurement to the measurements stream.

Key points:

• Only one recording can run at a time.
• Records raw sound, including any human speech nearby, and produces a lot of data. Use with caution.
• The sound file is stored as AAC in an .mp4 file in the MediaSamplingPackage.MEDIA_FILES_PATH folder, named by the MediaData.id.
• The AudioMedia data holds the metadata and file name. How the file is uploaded is up to the DataManager used in the deployment.

Inheritance

• Object
• AbstractExecutor<Measure>
• Probe
• AudioProbe

Constructors

AudioProbe

AudioProbe()

Properties

isRecording

bool get isRecording

Whether a recording is in progress.

Methods

onDispose

1. @override

Future<void> onDispose()

override

Callback when this executor is disposed.

Subclasses should override this, to implement any cleanup to be done before disposing.

onInitialize

1. @override

bool onInitialize()

override

Callback when this executor is initialized. Returns true if successfully initialized, false otherwise.

Note that this is a non-async method and should hence be 'light-weight' and not block execution for a long duration.

onPause

1. @override

Future<bool> onPause()

override

Callback when this executor is paused. Returns true if successfully paused, false otherwise.

onResume

1. @override

Future<bool> onResume()

override

Callback when this executor is resumed. Returns true if successfully resumed, false otherwise.