SpeechRecognitionEngine.SpeechHypothesized 事件

  • 參考

定義

命名空間:
System.Speech.Recognition
組件:
System.Speech.dll
套件:
System.Speech v8.0.0
套件:
System.Speech v9.0.0-preview.3.24172.9
來源:
SpeechRecognitionEngine.cs
來源:
SpeechRecognitionEngine.cs
來源:
SpeechRecognitionEngine.cs

在 SpeechRecognitionEngine 已辨識的文字可能是文法中多個完整片語的元件時引發。

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)

事件類型

EventHandler<SpeechHypothesizedEventArgs>

範例

下列範例會辨識「在音樂類別中顯示藝術師清單」之類的片語。 此範例會 SpeechHypothesized 使用 事件，在主控台中顯示不完整的片語片段，因為辨識它們。

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);  
    }  
  }  
}

備註

SpeechRecognitionEngine會在嘗試識別輸入片語時產生許多 SpeechHypothesized 事件。 您可以在 事件處理常式 SpeechHypothesized 中物件的 屬性 SpeechHypothesizedEventArgs 中 Result ，存取部分辨識片語的文字。 通常，處理這些事件只適用于偵錯。

SpeechHypothesizedEventArgs 衍生自 RecognitionEventArgs。

如需詳細資訊， EndSilenceTimeoutAmbiguous 請參閱 屬性和 Recognize 、 RecognizeAsyncEmulateRecognize 和 EmulateRecognizeAsync 方法。

建立 SpeechHypothesized 委派時，必須識別處理事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 除非您移除委派，否則每當事件發生時就會呼叫事件處理常式。 如需事件處理常式委派的詳細資訊，請參閱 事件和委派。

適用於

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