AVAudioEngineMBS.available as boolean

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
shared method	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

Whether this class is available for use.

Should return true on OS X 10.10 and newer.

AVAudioEngineMBS.AVAudioEngineConfigurationChangeNotification as String

Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
shared method	AVFoundationNode	MBS AVFoundation Plugin	15.3	✅ Yes	❌ No	❌ No	✅ Yes	All

Posted when the audio engine configuration changes.

When the audio engine’s I/O unit observes a change to the audio input or output hardware’s channel count or sample rate, the audio engine stops, uninitializes itself, and issues this notification.