SpeechRecognizer.SoundStarted Event

public:
event TypedEventHandler<SpeechRecognizer^ , SpeechRecognizerSoundStartedEventArgs^ >^ SoundStarted {
         EventRegistrationToken add (TypedEventHandler<SpeechRecognizer^ , SpeechRecognizerSoundStartedEventArgs^ >^ value);
         void remove (EventRegistrationToken token);
}