iOS13SpeechRecognitionTask.swift

recognitionTask = speechRecognizer?.recognitionTask(with: recognitionRequest) { result, error in
            if let result = result {
                DispatchQueue.main.async {
                    
                        let transcribedString = result.bestTranscription.formattedString
                        self.transcribedText.text = (transcribedString)
                }
            }
            
            if error != nil {
                self.audioEngine.stop()
                inputNode.removeTap(onBus: 0)
                self.recognitionRequest = nil
                self.recognitionTask = nil
            }
}