public static async System.Threading.Tasks.Task InitialiseSpeechRecognition()
{
// Create an instance of SpeechRecognizer.
speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();
// Add a web search grammar to the recognizer.
var dictationGrammar = new Windows.Media.SpeechRecognition.SpeechRecognitionTopicConstraint(Windows.Media.SpeechRecognition.SpeechRecognitionScenario.Dictation, "dication");
speechRecognizer.UIOptions.AudiblePrompt = "Please give us your feedback...";
speechRecognizer.UIOptions.ExampleText = @"This game is awesome, rate me 5 stars";
speechRecognizer.UIOptions.IsReadBackEnabled = false;
speechRecognizer.Constraints.Add(dictationGrammar);
// Compile the dictation grammar by default.
await speechRecognizer.CompileConstraintsAsync();
}
public static async System.Threading.Tasks.Task InitialiseSpeechRecognition()
{
// Create an instance of SpeechRecognizer.
speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();
// Add a web search grammar to the recognizer.
var dictationGrammar = new Windows.Media.SpeechRecognition.
SpeechRecognitionTopicConstraint(
Windows.Media.SpeechRecognition.SpeechRecognitionScenario.Dictation,
"dictation");
speechRecognizer.Constraints.Add(dictationGrammar);
// Compile the dictation grammar by default.
await speechRecognizer.CompileConstraintsAsync();
}
private async void VoiceSearchButton_OnClick(object sender, RoutedEventArgs e)
{
try
{
// Create an instance of SpeechRecognizer.
var speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();
// Listen for audio input issues.
//speechRecognizer.RecognitionQualityDegrading += speechRecognizer_RecognitionQualityDegrading;
// Add a web search grammar to the recognizer.
var webSearchGrammar = new Windows.Media.SpeechRecognition.SpeechRecognitionTopicConstraint(Windows.Media.SpeechRecognition.SpeechRecognitionScenario.WebSearch, "webSearch");
speechRecognizer.UIOptions.AudiblePrompt = "Say what you want to search for...";
speechRecognizer.UIOptions.ExampleText = @"Ex. 'Play Rahman songs'";
speechRecognizer.Constraints.Add(webSearchGrammar);
// Compile the constraint.
await speechRecognizer.CompileConstraintsAsync();
// Start recognition.
Windows.Media.SpeechRecognition.SpeechRecognitionResult speechRecognitionResult = await speechRecognizer.RecognizeWithUIAsync();
//await speechRecognizer.RecognizeWithUIAsync();
// Do something with the recognition result.
var messageDialog = new Windows.UI.Popups.MessageDialog(speechRecognitionResult.Text, "Text spoken");
await messageDialog.ShowAsync();
}
catch (Exception err)
{
// Define a variable that holds the error for the speech recognition privacy policy.
// This value maps to the SPERR_SPEECH_PRIVACY_POLICY_NOT_ACCEPTED error,
// as described in the Windows.Phone.Speech.Recognition error codes section later on.
const int privacyPolicyHResult = unchecked ((int)0x80045509);
// Check whether the error is for the speech recognition privacy policy.
if (err.HResult == privacyPolicyHResult)
{
var messageDialog = new Windows.UI.Popups.MessageDialog("You will need to accept the speech privacy policy in order to use speech recognition in this app.", "Error");
await messageDialog.ShowAsync();
}
}
}
private async void RecognizeWithWebSearchGrammar_Click(object sender, RoutedEventArgs e)
{
// Create an instance of SpeechRecognizer.
var speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();
// Add a web search grammar to the recognizer.
var webSearchGrammar = new Windows.Media.SpeechRecognition.SpeechRecognitionTopicConstraint(Windows.Media.SpeechRecognition.SpeechRecognitionScenario.WebSearch, "webSearch");
speechRecognizer.UIOptions.AudiblePrompt = "Say what you want to search for...";
speechRecognizer.UIOptions.ExampleText = @"Ex. ""weather for London""";
speechRecognizer.Constraints.Add(webSearchGrammar);
// Compile the constraint.
await speechRecognizer.CompileConstraintsAsync();
this.heardYouSayTextBlock.Visibility = this.resultTextBlock.Visibility = Visibility.Collapsed;
// Start recognition.
try
{
Windows.Media.SpeechRecognition.SpeechRecognitionResult speechRecognitionResult = await speechRecognizer.RecognizeWithUIAsync();
// If successful, display the recognition result.
if (speechRecognitionResult.Status == Windows.Media.SpeechRecognition.SpeechRecognitionResultStatus.Success)
{
this.heardYouSayTextBlock.Visibility = this.resultTextBlock.Visibility = Visibility.Visible;
this.resultTextBlock.Text = speechRecognitionResult.Text;
}
}
catch (Exception exception)
{
if ((uint)exception.HResult == App.HResultPrivacyStatementDeclined)
{
this.resultTextBlock.Visibility = Visibility.Visible;
this.resultTextBlock.Text = "The privacy statement was declined.";
}
else
{
var messageDialog = new Windows.UI.Popups.MessageDialog(exception.Message, "Exception");
messageDialog.ShowAsync().GetResults();
}
}
}
private async void RecognizeWithWebSearchGrammar_Click(object sender, RoutedEventArgs e)
{
// Create an instance of SpeechRecognizer.
var speechRecognizer = new Windows.Media.SpeechRecognition.SpeechRecognizer();
// Add a web search grammar to the recognizer.
var webSearchGrammar = new Windows.Media.SpeechRecognition.SpeechRecognitionTopicConstraint(Windows.Media.SpeechRecognition.SpeechRecognitionScenario.WebSearch, "webSearch");
speechRecognizer.UIOptions.AudiblePrompt = "Say what you want to search for...";
speechRecognizer.UIOptions.ExampleText = @"Ex. ""weather for London""";
speechRecognizer.Constraints.Add(webSearchGrammar);
// Compile the constraint.
await speechRecognizer.CompileConstraintsAsync();
this.heardYouSayTextBlock.Visibility = this.resultTextBlock.Visibility = Visibility.Collapsed;
// Start recognition.
try
{
Windows.Media.SpeechRecognition.SpeechRecognitionResult speechRecognitionResult = await speechRecognizer.RecognizeWithUIAsync();
// If successful, display the recognition result.
if (speechRecognitionResult.Status == Windows.Media.SpeechRecognition.SpeechRecognitionResultStatus.Success)
{
this.heardYouSayTextBlock.Visibility = this.resultTextBlock.Visibility = Visibility.Visible;
this.resultTextBlock.Text = speechRecognitionResult.Text;
}
}
catch (Exception exception)
{
if ((uint)exception.HResult == App.HResultPrivacyStatementDeclined)
{
this.resultTextBlock.Visibility = Visibility.Visible;
this.resultTextBlock.Text = "The privacy statement was declined.";
}
else
{
var messageDialog = new Windows.UI.Popups.MessageDialog(exception.Message, "Exception");
messageDialog.ShowAsync().GetResults();
}
}
}
