SpeechRecognizer.SpeechHypothesized 事件

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) 

事件类型

示例

以下示例识别“显示爵士乐类别中的艺术家列表”等短语。 该示例使用 SpeechHypothesized 事件在控制台中显示识别不完整的短语片段。

using System;
using System.Speech.Recognition;

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

    // Initialize a shared speech recognition engine.
    {
      using (SpeechRecognizer recognizer =
         new SpeechRecognizer())
      {

        // 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);

        // 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);
    }

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

注解

当输入不明确时，共享识别器可能会引发此事件。 例如，对于支持识别“新游戏请”或“新游戏”的语音识别语法，“新游戏请”是明确的输入，“新游戏”是一个不明确的输入。

为 SpeechHypothesized 事件创建委托时，可以标识将处理该事件的方法。 若要将事件与事件处理程序关联，请将该委托的一个实例添加到事件中。 除非移除了该委托，否则每当发生该事件时就会调用事件处理程序。 有关事件处理程序委托的详细信息，请参阅 事件和委托。

另请参阅

• SpeechHypothesizedEventArgs
• SpeechDetected
• SpeechRecognitionRejected
• SpeechRecognized