SpeechRecognitionEngine.RequestRecognizerUpdate Methode

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

public:
 void RequestRecognizerUpdate(System::Object ^ userToken, TimeSpan audioPositionAheadToRaiseUpdate);

public void RequestRecognizerUpdate (object userToken, TimeSpan audioPositionAheadToRaiseUpdate);

member this.RequestRecognizerUpdate : obj * TimeSpan -> unit

Public Sub RequestRecognizerUpdate (userToken As Object, audioPositionAheadToRaiseUpdate As TimeSpan)

Parameter

Hinweise

Die Erkennung initiiert die Anforderung zur Aktualisierung der Erkennung erst, wenn die der Erkennung RecognizerAudioPosition gleich dem aktuellen AudioPosition Pluspunkt audioPositionAheadToRaiseUpdateist.

Wenn die Erkennung das RecognizerUpdateReached Ereignis generiert, enthält die UserToken -Eigenschaft des RecognizerUpdateReachedEventArgs den Wert des userToken Parameters.

Weitere Informationen

• RecognizerUpdateReached
• RecognizerAudioPosition
• AudioPosition

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

public:
 void RequestRecognizerUpdate(System::Object ^ userToken);

public void RequestRecognizerUpdate (object userToken);

member this.RequestRecognizerUpdate : obj -> unit

Public Sub RequestRecognizerUpdate (userToken As Object)

Parameter

Hinweise

Wenn die Erkennung das RecognizerUpdateReached Ereignis generiert, enthält die UserToken -Eigenschaft des RecognizerUpdateReachedEventArgs den Wert des userToken Parameters.

Verwenden Sie die RequestRecognizerUpdate -Methode, um einen Audiopositionsoffset anzugeben.

Weitere Informationen

• RecognizerUpdateReached
• RecognizerAudioPosition
• AudioPosition

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

Quelle:

SpeechRecognitionEngine.cs

public:
 void RequestRecognizerUpdate();

public void RequestRecognizerUpdate ();

member this.RequestRecognizerUpdate : unit -> unit

Public Sub RequestRecognizerUpdate ()

Beispiele

Das folgende Beispiel zeigt eine Konsolenanwendung, die Objekte lädt und entlädt Grammar . Die Anwendung verwendet die RequestRecognizerUpdate -Methode, um die Spracherkennungs-Engine anzufordern, anzuhalten, damit sie ein Update erhalten kann. Anschließend lädt oder entlädt die Anwendung ein Grammar -Objekt.

Bei jedem Update schreibt ein Handler für RecognizerUpdateReached das Ereignis den Namen und die status der aktuell geladenen Grammar Objekte in die Konsole. Wenn Grammatiken geladen und entladen werden, erkennt die Anwendung zuerst die Namen von Nutztieren, dann die Namen der Nutztiere und die Namen der Früchte, dann nur die Namen von Früchten.

using System;  
using System.Speech.Recognition;  
using System.Collections.Generic;  
using System.Threading;  

namespace SampleRecognition  
{  
  class Program  
  {  
    private static SpeechRecognitionEngine recognizer;  
    public static void Main(string[] args)  
    {  

      // Initialize an in-process speech recognition engine and configure its input.  
      using (recognizer = new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US")))  
      {  
        recognizer.SetInputToDefaultAudioDevice();  

        // Create the first grammar - Farm.  
        Choices animals = new Choices(new string[] { "cow", "pig", "goat" });  
        GrammarBuilder farm = new GrammarBuilder(animals);  
        Grammar farmAnimals = new Grammar(farm);  
        farmAnimals.Name = "Farm";  

        // Create the second grammar - Fruit.  
        Choices fruit = new Choices(new string[] { "apples", "peaches", "oranges" });  
        GrammarBuilder favorite = new GrammarBuilder(fruit);  
        Grammar favoriteFruit = new Grammar(favorite);  
        favoriteFruit.Name = "Fruit";  

        // Attach event handlers.  
        recognizer.SpeechRecognized +=  
          new EventHandler<SpeechRecognizedEventArgs>(recognizer_SpeechRecognized);  
        recognizer.RecognizerUpdateReached +=  
          new EventHandler<RecognizerUpdateReachedEventArgs>(recognizer_RecognizerUpdateReached);  
        recognizer.SpeechRecognitionRejected +=  
          new EventHandler<SpeechRecognitionRejectedEventArgs>(recognizer_SpeechRecognitionRejected);  

        // Load the Farm grammar.  
        recognizer.LoadGrammar(farmAnimals);  

        // Start asynchronous, continuous recognition.  
        recognizer.RecognizeAsync(RecognizeMode.Multiple);  
        Console.WriteLine("Starting asynchronous, continuous recognition");  
        Console.WriteLine("  Farm grammar is loaded and enabled.");  

        // Pause to recognize farm animals.  
        Thread.Sleep(7000);  
        Console.WriteLine();  

        // Request an update and load the Fruit grammar.  
        recognizer.RequestRecognizerUpdate();  
        recognizer.LoadGrammarAsync(favoriteFruit);  
        Thread.Sleep(7000);  

        // Request an update and unload the Farm grammar.  
        recognizer.RequestRecognizerUpdate();  
        recognizer.UnloadGrammar(farmAnimals);  
        Thread.Sleep(7000);  
      }  

      // Keep the console window open.  
      Console.WriteLine();  
      Console.WriteLine("Press any key to exit...");  
      Console.ReadKey();  
    }  

    // At the update, get the names and enabled status of the currently loaded grammars.  
    public static void recognizer_RecognizerUpdateReached(  
      object sender, RecognizerUpdateReachedEventArgs e)  
    {  
      Console.WriteLine();  
      Console.WriteLine("Update reached:");  
      Thread.Sleep(1000);  

      string qualifier;  
      List<Grammar> grammars = new List<Grammar>(recognizer.Grammars);  
      foreach (Grammar g in grammars)  
      {  
        qualifier = (g.Enabled) ? "enabled" : "disabled";  
        Console.WriteLine("  {0} grammar is loaded and {1}.",  
        g.Name, qualifier);  
      }  
    }  

    // Write the text of the recognized phrase to the console.  
    static void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)  
    {  
      Console.WriteLine("    Speech recognized: " + e.Result.Text);  
    }  

    // Write a message to the console when recognition fails.  
    static void recognizer_SpeechRecognitionRejected(object sender, SpeechRecognitionRejectedEventArgs e)  
    {  
      Console.WriteLine("    Recognition attempt failed");  
    }  
  }  
}  

Hinweise

Wenn die Erkennung das RecognizerUpdateReached Ereignis generiert, ist nulldie UserToken -Eigenschaft von RecognizerUpdateReachedEventArgs .

Verwenden Sie die - oder RequestRecognizerUpdate -Methode, um ein Benutzertoken RequestRecognizerUpdate bereitzustellen. Verwenden Sie die RequestRecognizerUpdate -Methode, um einen Audiopositionsoffset anzugeben.

Weitere Informationen

• RecognizerUpdateReached
• RecognizerAudioPosition
• AudioPosition