SpeechRecognizer.EmulateRecognizeAsync Method

Source:

SpeechRecognizer.cs

Source:

SpeechRecognizer.cs

public:
 void EmulateRecognizeAsync(System::String ^ inputText);

public void EmulateRecognizeAsync (string inputText);

member this.EmulateRecognizeAsync : string -> unit

Public Sub EmulateRecognizeAsync (inputText As String)

Parameters

Examples

The following example is part of a console application that loads a speech recognition grammar and demonstrates asynchronous emulated input, the associated recognition results, and the associated events raised by the speech recognizer. If Windows Speech Recognition is not running, then starting this application will also start Windows Speech Recognition. If Windows Speech Recognition is in the Sleeping state, then EmulateRecognizeAsync always returns null.

using System;  
using System.Speech.Recognition;  
using System.Threading;  

namespace SharedRecognizer  
{  
  class Program  
  {  
    static bool completed;  

    static void Main(string[] args)  
    {  
      // Initialize an instance of the shared recognizer.  
      using (SpeechRecognizer recognizer = new SpeechRecognizer())  
      {  
        // Create and load a sample grammar.  
        Grammar testGrammar =  
          new Grammar(new GrammarBuilder("testing testing"));  
        testGrammar.Name = "Test Grammar";  

        recognizer.LoadGrammar(testGrammar);  

        // Attach event handlers for recognition events.  
        recognizer.SpeechRecognized +=  
          new EventHandler<SpeechRecognizedEventArgs>(  
            SpeechRecognizedHandler);  
        recognizer.EmulateRecognizeCompleted +=  
          new EventHandler<EmulateRecognizeCompletedEventArgs>(  
            EmulateRecognizeCompletedHandler);  

        completed = false;  

        // This EmulateRecognizeAsync call generates a SpeechRecognized event.  
        recognizer.EmulateRecognizeAsync("testing testing");  

        // Wait for the asynchronous operation to complete.  
        while (!completed)  
        {  
          Thread.Sleep(333);  
        }  

        completed = false;  

        // This EmulateRecognizeAsync call does not match the grammar   
        // or generate a SpeechRecognized event.  
        recognizer.EmulateRecognizeAsync("testing one two three");  

        // Wait for the asynchronous operation to complete.  
        while (!completed)  
        {  
          Thread.Sleep(333);  
        }  
      }  

      Console.WriteLine();  
      Console.WriteLine("Press any key to exit...");  
      Console.ReadKey();  
    }  

    // Handle the SpeechRecognized event.  
    static void SpeechRecognizedHandler(  
      object sender, SpeechRecognizedEventArgs e)  
    {  
      if (e.Result != null)  
      {  
        Console.WriteLine("Recognition result = {0}",  
          e.Result.Text ?? "<no text>");  
      }  
      else  
      {  
        Console.WriteLine("No recognition result");  
      }  
    }  

    // Handle the EmulateRecognizeCompleted event.   
    static void EmulateRecognizeCompletedHandler(  
      object sender, EmulateRecognizeCompletedEventArgs e)  
    {  
      if (e.Result == null)  
      {  
        Console.WriteLine("No result generated.");  
      }  

      completed = true;  
    }  
  }  
}

Remarks

The recognizers that ship with Vista and Windows 7 ignore case and character width when applying grammar rules to the input phrase. For more information about this type of comparison, see the CompareOptions enumeration values OrdinalIgnoreCase and IgnoreWidth. The recognizers also ignore new lines and extra white space and treat punctuation as literal input.

This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by EmulateRecognize(String).

See also

• EmulateRecognize(String)
• EmulateRecognizeCompleted
• SpeechDetected
• SpeechHypothesized
• SpeechRecognitionRejected
• SpeechRecognized

Source:

SpeechRecognizer.cs

Source:

SpeechRecognizer.cs

public:
 void EmulateRecognizeAsync(cli::array <System::Speech::Recognition::RecognizedWordUnit ^> ^ wordUnits, System::Globalization::CompareOptions compareOptions);

public void EmulateRecognizeAsync (System.Speech.Recognition.RecognizedWordUnit[] wordUnits, System.Globalization.CompareOptions compareOptions);

member this.EmulateRecognizeAsync : System.Speech.Recognition.RecognizedWordUnit[] * System.Globalization.CompareOptions -> unit

Public Sub EmulateRecognizeAsync (wordUnits As RecognizedWordUnit(), compareOptions As CompareOptions)

Parameters

Remarks

This method creates a RecognitionResult object using the information provided in the wordUnits parameter.

The recognizer uses the compareOptions when it applies grammar rules to the input phrase. The recognizers that ship with Vista and Windows 7 ignore case if the OrdinalIgnoreCase or IgnoreCase value is present. The recognizers always ignore the character width and never ignore the Kana type. The recognizers also ignore new lines and extra white space and treats punctuation as literal input. For more information about character width and Kana type, see the CompareOptions enumeration.

This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by EmulateRecognize(RecognizedWordUnit[], CompareOptions).

See also

• EmulateRecognize(String)
• EmulateRecognizeCompleted
• SpeechDetected
• SpeechHypothesized
• SpeechRecognitionRejected
• SpeechRecognized

Source:

SpeechRecognizer.cs

Source:

SpeechRecognizer.cs

public:
 void EmulateRecognizeAsync(System::String ^ inputText, System::Globalization::CompareOptions compareOptions);

public void EmulateRecognizeAsync (string inputText, System.Globalization.CompareOptions compareOptions);

member this.EmulateRecognizeAsync : string * System.Globalization.CompareOptions -> unit

Public Sub EmulateRecognizeAsync (inputText As String, compareOptions As CompareOptions)

Parameters

Remarks

The recognizer uses the compareOptions when it applies grammar rules to the input phrase. The recognizers that ship with Vista and Windows 7 ignore case if the OrdinalIgnoreCase or IgnoreCase value is present. The recognizers always ignore the character width and never ignore the Kana type. The recognizers also ignore new lines and extra white space and treats punctuation as literal input. For more information about character width and Kana type, see the CompareOptions enumeration.

This method stores in the task it returns all non-usage exceptions that the method's synchronous counterpart can throw. If an exception is stored into the returned task, that exception will be thrown when the task is awaited. Usage exceptions, such as ArgumentException, are still thrown synchronously. For the stored exceptions, see the exceptions thrown by EmulateRecognize(String, CompareOptions).

See also

• EmulateRecognize(String)
• EmulateRecognizeCompleted
• SpeechDetected
• SpeechHypothesized
• SpeechRecognitionRejected
• SpeechRecognized