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SpeechRecognitionEngine.SpeechHypothesized Evento

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Definición

Espacio de nombres:
System.Speech.Recognition
Ensamblado:
System.Speech.dll
Paquete:
System.Speech v8.0.0
Paquete:
System.Speech v9.0.0-rc.2.24473.5
Source:
SpeechRecognitionEngine.cs
Source:
SpeechRecognitionEngine.cs
Source:
SpeechRecognitionEngine.cs

Se genera cuando SpeechRecognitionEngine ha reconocido una palabra o palabras que pueden ser un componente de varias frases completas en una gramática.

public:
 event EventHandler<System::Speech::Recognition::SpeechHypothesizedEventArgs ^> ^ SpeechHypothesized;
public event EventHandler<System.Speech.Recognition.SpeechHypothesizedEventArgs> SpeechHypothesized;
member this.SpeechHypothesized : EventHandler<System.Speech.Recognition.SpeechHypothesizedEventArgs> 
Public Custom Event SpeechHypothesized As EventHandler(Of SpeechHypothesizedEventArgs)

Tipo de evento

EventHandler<SpeechHypothesizedEventArgs>

Ejemplos

En el ejemplo siguiente se reconocen frases como "Mostrar la lista de artistas en la categoría jazz". En el ejemplo se usa el SpeechHypothesized evento para mostrar fragmentos de frases incompletos en la consola a medida que se reconocen.

using System;  
using System.Speech.Recognition;  

namespace SampleRecognition  
{  
  class Program  
  {  
    static void Main(string[] args)  

    // Initialize an in-process speech recognition engine.  
    {  
      using (SpeechRecognitionEngine recognizer =  
         new SpeechRecognitionEngine())  
      {  

        // Create a grammar.  
        //  Create lists of alternative choices.  
        Choices listTypes = new Choices(new string[] { "albums", "artists" });  
        Choices genres = new Choices(new string[] {   
          "blues", "classical", "gospel", "jazz", "rock" });  

        //  Create a GrammarBuilder object and assemble the grammar components.  
        GrammarBuilder mediaMenu = new GrammarBuilder("Display the list of");  
        mediaMenu.Append(listTypes);  
        mediaMenu.Append("in the");  
        mediaMenu.Append(genres);  
        mediaMenu.Append("category.");  

        //  Build a Grammar object from the GrammarBuilder.  
        Grammar mediaMenuGrammar = new Grammar(mediaMenu);  
        mediaMenuGrammar.Name = "Media Chooser";  

        // Attach event handlers.  
        recognizer.LoadGrammarCompleted +=  
          new EventHandler<LoadGrammarCompletedEventArgs>(recognizer_LoadGrammarCompleted);  
        recognizer.SpeechRecognized +=  
          new EventHandler<SpeechRecognizedEventArgs>(recognizer_SpeechRecognized);  
        recognizer.SpeechHypothesized +=  
          new EventHandler<SpeechHypothesizedEventArgs>(recognizer_SpeechHypothesized);  

        // Load the grammar object to the recognizer.  
        recognizer.LoadGrammarAsync(mediaMenuGrammar);  

        // Set the input to the recognizer.  
        recognizer.SetInputToDefaultAudioDevice();  

        // Start asynchronous recognition.  
        recognizer.RecognizeAsync();  

        // Keep the console window open.  
        Console.ReadLine();  
      }  
    }  

    // Handle the SpeechHypothesized event.  
    static void recognizer_SpeechHypothesized(object sender, SpeechHypothesizedEventArgs e)  
    {  
      Console.WriteLine("Speech hypothesized: " + e.Result.Text);  
    }  

    // Handle the LoadGrammarCompleted event.  
    static void recognizer_LoadGrammarCompleted(object sender, LoadGrammarCompletedEventArgs e)  
    {  
      Console.WriteLine("Grammar loaded: " + e.Grammar.Name);  
      Console.WriteLine();  
    }  

    // Handle the SpeechRecognized event.  
    static void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)  
    {  
      Console.WriteLine();   
      Console.WriteLine("Speech recognized: " + e.Result.Text);  
    }  
  }  
}

Comentarios

SpeechRecognitionEngine genera numerosos SpeechHypothesized eventos a medida que intenta identificar una frase de entrada. Puede acceder al texto de frases reconocidas parcialmente en la Result propiedad del SpeechHypothesizedEventArgs objeto en el controlador del SpeechHypothesized evento. Normalmente, el control de estos eventos solo es útil para la depuración.

SpeechHypothesizedEventArgs se deriva de RecognitionEventArgs.

Para obtener más información, vea la EndSilenceTimeoutAmbiguous propiedad y los Recognizemétodos , RecognizeAsyncEmulateRecognize, y EmulateRecognizeAsync .

Cuando se crea un delegado SpeechHypothesized, se identifica el método que controlará el evento. Para asociar el evento al controlador, se debe agregar una instancia del delegado al evento. Siempre que se produce el evento, se llama a su controlador, a menos que se quite el delegado. Para obtener más información sobre los delegados del controlador de eventos, vea Eventos y delegados.

Se aplica a

Consulte también