private async Task AskForColor()
{
try
{
SpeechRecognizerUI speechRecognizerUi = new SpeechRecognizerUI();
SpeechRecognizer speechRecognizer = speechRecognizerUi.Recognizer;
speechRecognizer.AudioCaptureStateChanged += speechRecognizer_AudioCaptureStateChanged;
speechRecognizer.Grammars.AddGrammarFromList("colorList", _colorNames);
PromptTextBlock.Text = "Which color?";
ExampleTextBlock.Text = "'Red', 'Blue', 'Green', 'Yellow', 'Purple', 'Orange', 'Black', 'White'";
_speechSynthesizer.SpeakTextAsync("Which color?");
SpeechRecognitionResult result = await speechRecognizer.RecognizeAsync();
if (result.TextConfidence < SpeechRecognitionConfidence.Medium)
{
FillUi(result);
Dispatcher.BeginInvoke(() => PromptTextBlock.Text = "Recognition Confidence too low.");
_speechSynthesizer.SpeakTextAsync("Recognition Confidence too low. Please try again.");
await AskForColor();
}
else
{
SetColorFromCommand(result.Text);
PromptTextBlock.Text = "Color set to " + result.Text;
FillUi(result);
_speechSynthesizer.SpeakTextAsync("Color set to " + result.Text);
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
//throw;
}
}
void speechRecognizer_AudioCaptureStateChanged(SpeechRecognizer sender, SpeechRecognizerAudioCaptureStateChangedEventArgs e)
{
Dispatcher.BeginInvoke(() => CaptureStatusTextBlock.Text = e.State.ToString());
}
