if (isListening == false) {
                        // The recognizer can only start listening in a continuous fashion if the recognizer is currently idle.
                        // This prevents an exception from occurring.
                        if (speechRecognizer.State == SpeechRecognizerState.Idle) {
                            isListening = true;
                            await speechRecognizer.ContinuousRecognitionSession.StartAsync();
                            isListening = false;
                        }
                    } else {
                        isListening = false;
                        if (speechRecognizer.State != SpeechRecognizerState.Idle) {
                            // Cancelling recognition prevents any currently recognized speech from
                            // generating a ResultGenerated event. StopAsync() will allow the final session to
                            // complete.
                            await speechRecognizer.ContinuousRecognitionSession.StopAsync();
                        }
                    }
                    break;
                case "1":
                    if (richEbitBox.Document.Selection.CharacterFormat.Bold == FormatEffect.On) {
                        richEbitBox.Document.Selection.CharacterFormat.Bold = FormatEffect.Off;
                        FormatBoltText.Background = (SolidColorBrush)Resources[OFF];
                    } else {
                        richEbitBox.Document.Selection.CharacterFormat.Bold = FormatEffect.On;
                        FormatBoltText.Background = (SolidColorBrush)Resources[ON];
                    }
                    break;
                case "2":
                    if (richEbitBox.Document.Selection.CharacterFormat.Italic == FormatEffect.On) {
                        richEbitBox.Document.Selection.CharacterFormat.Italic = FormatEffect.Off;
                        formatItalicText.Background = (SolidColorBrush)Resources[OFF];
                    } else {
                        richEbitBox.Document.Selection.CharacterFormat.Italic = FormatEffect.On;
                        formatItalicText.Background = (SolidColorBrush)Resources[ON];
                    }
                    break;
                case "3":
                    if (richEbitBox.Document.Selection.CharacterFormat.Underline == UnderlineType.Single) {
                        richEbitBox.Document.Selection.CharacterFormat.Underline = UnderlineType.None;
                        formatUnderlineText.Background = (SolidColorBrush)Resources[OFF];
                    } else {
                        richEbitBox.Document.Selection.CharacterFormat.Underline = UnderlineType.Single;
                        formatUnderlineText.Background = (SolidColorBrush)Resources[ON];
                    }
                    break;
                case "5":
                    richEbitBox.Document.GetText(TextGetOptions.AdjustCrlf, out string value);
                    speak(value);
                    break;
                default:
                    break;
            }
        }

        private async void SpeechRecognizer_HypothesisGenerated(
            SpeechRecognizer sender,
            SpeechRecognitionHypothesisGeneratedEventArgs args) {

            string hypothesis = args.Hypothesis.Text;
            string textboxContent = dictateBuilder.ToString() + " " + hypothesis + " ...";

            await dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
                richEbitBox.Document.SetText(TextSetOptions.None, textboxContent);
            });
        }

        private async void ContinuousRecognitionSession_ResultGenerated(
            SpeechContinuousRecognitionSession sender,
            SpeechContinuousRecognitionResultGeneratedEventArgs args) {

            if (args.Result.Confidence == SpeechRecognitionConfidence.Medium ||
                  args.Result.Confidence == SpeechRecognitionConfidence.High) {

                dictateBuilder.Append(args.Result.Text + " ");

                await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () => {
                    richEbitBox.Document.SetText(TextSetOptions.None, dictateBuilder.ToString());
                });
            }
        }

        private void ContinuousRecognitionSession_Completed(
            SpeechContinuousRecognitionSession sender,
            SpeechContinuousRecognitionCompletedEventArgs args) {
        }