SpeechRecognitionEngine.SetInputToWaveFile(String) Méthode

Définition

Espace de noms:

System.Speech.Recognition

Assembly:

System.Speech.dll

Paquet:

System.Speech v9.0.0-preview.3.24172.9

Source:

SpeechRecognitionEngine.cs

Configure l'objet SpeechRecognitionEngine pour recevoir l'entrée d'un fichier au format audio Waveform (.wav).

public:
 void SetInputToWaveFile(System::String ^ path);

public void SetInputToWaveFile (string path);

member this.SetInputToWaveFile : string -> unit

Public Sub SetInputToWaveFile (path As String)

Paramètres

path

String

Chemin d'accès du fichier à utiliser en entrée.

Exemples

L’exemple suivant effectue la reconnaissance audio dans un fichier .wav et écrit le texte reconnu dans la console.

using System;  
using System.IO;  
using System.Speech.Recognition;  
using System.Speech.AudioFormat;  

namespace SampleRecognition  
{  
  class Program  
  {  
    static bool completed;  

    static void Main(string[] args)  

    // Initialize an in-process speech recognition engine.  
    {  
      using (SpeechRecognitionEngine recognizer =  
         new SpeechRecognitionEngine())  
      {  

        // Create and load a grammar.  
        Grammar dictation = new DictationGrammar();  
        dictation.Name = "Dictation Grammar";  

        recognizer.LoadGrammar(dictation);  

        // Configure the input to the recognizer.  
recognizer.SetInputToWaveFile(@"c:\temp\SampleWAVInput.wav");  

        // Attach event handlers for the results of recognition.  
        recognizer.SpeechRecognized +=   
          new EventHandler<SpeechRecognizedEventArgs>(recognizer_SpeechRecognized);  
        recognizer.RecognizeCompleted +=   
          new EventHandler<RecognizeCompletedEventArgs>(recognizer_RecognizeCompleted);  

        // Perform recognition on the entire file.  
        Console.WriteLine("Starting asynchronous recognition...");  
        completed = false;  
        recognizer.RecognizeAsync();  

        // Keep the console window open.  
        while (!completed)  
        {  
          Console.ReadLine();  
        }  
        Console.WriteLine("Done.");  
      }  

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

    // Handle the SpeechRecognized event.  
    static void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)  
    {  
      if (e.Result != null && e.Result.Text != null)  
      {  
        Console.WriteLine("  Recognized text =  {0}", e.Result.Text);  
      }  
      else  
      {  
        Console.WriteLine("  Recognized text not available.");  
      }  
    }  

    // Handle the RecognizeCompleted event.  
    static void recognizer_RecognizeCompleted(object sender, RecognizeCompletedEventArgs e)  
    {  
      if (e.Error != null)  
      {  
        Console.WriteLine("  Error encountered, {0}: {1}",  
        e.Error.GetType().Name, e.Error.Message);  
      }  
      if (e.Cancelled)  
      {  
        Console.WriteLine("  Operation cancelled.");  
      }  
      if (e.InputStreamEnded)  
      {  
        Console.WriteLine("  End of stream encountered.");  
      }  
      completed = true;  
    }  
  }  
}  

Remarques

Si le module de reconnaissance atteint la fin du fichier d’entrée pendant une opération de reconnaissance, l’opération de reconnaissance se finalise avec l’entrée disponible. Toutes les opérations de reconnaissance suivantes peuvent générer une exception, sauf si vous mettez à jour l’entrée vers le module de reconnaissance.

Voir aussi

• SetInputToAudioStream(Stream, SpeechAudioFormatInfo)
• SetInputToDefaultAudioDevice()
• SetInputToNull()
• SetInputToWaveStream(Stream)
• RecognizeCompleted