SpeechRecognizer Konstruktor

Definisi

Ruang nama:

System.Speech.Recognition

Rakitan:

System.Speech.dll

Paket:

System.Speech v9.0.0-rc.2.24473.5

Sumber:

SpeechRecognizer.cs

Menginisialisasi instans baru kelas SpeechRecognizer.

public:
 SpeechRecognizer();

public SpeechRecognizer ();

Public Sub New ()

Contoh

Contoh berikut adalah bagian dari aplikasi konsol yang memuat tata bahasa pengenalan ucapan dan menunjukkan input yang ditiru asinkron, hasil pengenalan terkait, dan peristiwa terkait yang diangkat oleh pengenal ucapan. Jika Pengenalan Ucapan Windows tidak berjalan, maka memulai aplikasi ini juga akan memulai Pengenalan Ucapan Windows. Jika Pengenalan Ucapan Windows dalam status Tidur , maka EmulateRecognizeAsync selalu kembali null.

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;  
    }  
  }  
}  

Keterangan

Setiap SpeechRecognizer objek mempertahankan sekumpulan tata bahasa pengenalan ucapan yang terpisah.

Lihat juga

• SpeechRecognitionEngine
• Grammar