SpeechRecognizer コンストラクター

public:
 SpeechRecognizer();

public SpeechRecognizer ();

Public Sub New ()

例

次の例は、音声認識文法を読み込み、非同期エミュレートされた入力、関連する認識結果、および音声認識エンジンによって発生する関連イベントを示すコンソール アプリケーションの一部です。 Windows 音声認識が実行されていない場合、このアプリケーションを起動すると、Windows 音声認識も開始されます。 Windows 音声認識が スリープ 状態の場合は、常に null を EmulateRecognizeAsync 返します。

using System;  
using System.Speech.Recognition;  
using System.Threading;  

namespace SharedRecognizer  
{  
  class Program  
  {  

    // Indicate whether the asynchronous emulate recognition  
    // operation has completed.  
    static bool completed;  

    static void Main(string[] args)  
    {  

      // Initialize an instance of the shared recognizer.  
      using (SpeechRecognizer recognizer = new SpeechRecognizer())  
      {  

        // Create and load a sample grammar.  
        Grammar testGrammar =  
          new Grammar(new GrammarBuilder("testing testing"));  
        testGrammar.Name = "Test Grammar";  
        recognizer.LoadGrammar(testGrammar);  

        // Attach event handlers for recognition events.  
        recognizer.SpeechRecognized +=  
          new EventHandler<SpeechRecognizedEventArgs>(  
            SpeechRecognizedHandler);  
        recognizer.EmulateRecognizeCompleted +=  
          new EventHandler<EmulateRecognizeCompletedEventArgs>(  
            EmulateRecognizeCompletedHandler);  

        completed = false;  

        // Start asynchronous emulated recognition.   
        // This matches the grammar and generates a SpeechRecognized event.  
        recognizer.EmulateRecognizeAsync("testing testing");  

        // Wait for the asynchronous operation to complete.  
        while (!completed)  
        {  
          Thread.Sleep(333);  
        }  

        completed = false;  

        // Start asynchronous emulated recognition.  
        // This does not match the grammar or generate a SpeechRecognized event.  
        recognizer.EmulateRecognizeAsync("testing one two three");  

        // Wait for the asynchronous operation to complete.  
        while (!completed)  
        {  
          Thread.Sleep(333);  
        }  
      }  

      Console.WriteLine();  
      Console.WriteLine("Press any key to exit...");  
      Console.ReadKey();  
    }  

    // Handle the SpeechRecognized event.  
    static void SpeechRecognizedHandler(  
      object sender, SpeechRecognizedEventArgs e)  
    {  
      if (e.Result != null)  
      {  
        Console.WriteLine("Recognition result = {0}",  
          e.Result.Text ?? "<no text>");  
      }  
      else  
      {  
        Console.WriteLine("No recognition result");  
      }  
    }  

    // Handle the SpeechRecognizeCompleted event.  
    static void EmulateRecognizeCompletedHandler(  
      object sender, EmulateRecognizeCompletedEventArgs e)  
    {  
      if (e.Result == null)  
      {  
        Console.WriteLine("No result generated.");  
      }  

      // Indicate the asynchronous operation is complete.  
      completed = true;  
    }  
  }  
}  

注釈

各 SpeechRecognizer オブジェクトは、音声認識文法の個別のセットを保持します。

適用対象

こちらもご覧ください

• SpeechRecognitionEngine
• Grammar