SpeechRecognitionEngine.SpeechHypothesized Evento

Definição

Namespace:

System.Speech.Recognition

Assembly:

System.Speech.dll

Pacote:

System.Speech v9.0.0-preview.3.24172.9

Origem:

SpeechRecognitionEngine.cs

Gerada quando o SpeechRecognitionEngine tiver reconhecido uma palavra ou palavras que podem ser um componente de várias frases completas em uma 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>

Exemplos

O exemplo a seguir reconhece frases como "Exibir a lista de artistas na categoria jazz". O exemplo usa o SpeechHypothesized evento para exibir fragmentos de frase incompletos no console conforme eles são reconhecidos.

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);  
    }  
  }  
}  

Comentários

O SpeechRecognitionEngine gera vários SpeechHypothesized eventos enquanto tenta identificar uma frase de entrada. Você pode acessar o texto de frases parcialmente reconhecidas na Result propriedade do SpeechHypothesizedEventArgs objeto no manipulador do SpeechHypothesized evento. Normalmente, lidar com esses eventos é útil apenas para depuração.

SpeechHypothesizedEventArgs deriva de RecognitionEventArgs.

Para obter mais informações, consulte a EndSilenceTimeoutAmbiguous propriedade e os Recognizemétodos , RecognizeAsync, EmulateRecognizee EmulateRecognizeAsync .

Ao criar um SpeechHypothesized delegado, você identifica o método que manipulará o evento. Para associar o evento ao manipulador de eventos, adicione uma instância do delegado ao evento. O manipulador de eventos é chamado sempre que o evento ocorre, a menos que você remova o representante. Para obter mais informações sobre delegados do manipulador de eventos, consulte Eventos e Delegados.

Confira também

• SpeechDetectedEventArgs
• Grammar
• RecognitionResult
• Recognize()
• RecognizeAsync()
• EmulateRecognize(String)
• EmulateRecognizeAsync(String)
• SpeechDetected
• SpeechRecognitionRejected
• SpeechRecognized
• RecognitionEventArgs