mockingbird_macos #

The macOS implementation of the mockingbird plugin. It is endorsed, so depending on mockingbird includes it automatically.

What it bundles #

• The Mockingbird engine compiled from source into the host app: capture, RNNoise, libfvad, the anomaly gate, the Opus encoder, and the ONNX Runtime detectors (Silero VAD and YAMNet).
• Microphone capture through a Core Audio HALOutput unit bound to the default input device, with the OS host-time stamp of every buffer.

The Dart side reaches the C ABI through DynamicLibrary.process(). There are no platform channels.

Integration #

Both CocoaPods and Swift Package Manager are supported.

The higher Swift Package Manager floor comes from Microsoft's onnxruntime-swift-package-manager package. Set MACOSX_DEPLOYMENT_TARGET in your Xcode project accordingly.

Requirements #

Add the audio-input entitlement to both entitlement files of your app and a usage description to Info.plist:

<key>com.apple.security.device.audio-input</key>
<true/>

<key>NSMicrophoneUsageDescription</key>
<string>Used to detect voice and sounds.</string>

Request access with AVCaptureDevice.requestAccess or permission_handler before starting an engine that captures. Engines created with MockingbirdBackend.hostPcm do not touch the microphone.