ownerAudioUnit The audio unit that owns the bus array. Declarationunowned(unsafe) var ownerAudioUnit: AUAudioUnit { get } See AlsoBus Array Methods and PropertiescountisCountChangeablebusTypesubscript(_:)setBusCount(_:)addObserver(toAllBusses:forKeyPath:options:context:)removeObserver(fromAllBusses:forKeyPath:context:)