SpeechRecognitionRejectedEventArgs Klas

Definitie

public ref class SpeechRecognitionRejectedEventArgs : System::Speech::Recognition::RecognitionEventArgs

[System.Serializable]
public class SpeechRecognitionRejectedEventArgs : System.Speech.Recognition.RecognitionEventArgs

[<System.Serializable>]
type SpeechRecognitionRejectedEventArgs = class
    inherit RecognitionEventArgs

Public Class SpeechRecognitionRejectedEventArgs
Inherits RecognitionEventArgs

Overname

Object

EventArgs

RecognitionEventArgs

SpeechRecognitionRejectedEventArgs

Kenmerken

SerializableAttribute

Voorbeelden

In het volgende voorbeeld worden zinnen herkend, zoals 'De lijst met artiesten weergeven in de jazzcategorie' of 'Display albums gospel'. In het voorbeeld wordt een handler voor de SpeechRecognitionRejected gebeurtenis gebruikt om een melding weer te geven in de console wanneer de spraakinvoer niet kan worden vergeleken met de inhoud van de grammatica met voldoende vertrouwen om een geslaagde herkenning te produceren.

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");
        mediaMenu.Append("the list of", 0, 1);
        mediaMenu.Append(listTypes);
        mediaMenu.Append("in the", 0, 1);
        mediaMenu.Append(genres);
        mediaMenu.Append("category", 0, 1);

        //  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.SpeechRecognitionRejected +=
          new EventHandler<SpeechRecognitionRejectedEventArgs>(recognizer_SpeechRecognitionRejected);

        // Load the grammar object to the recognizer.
        recognizer.LoadGrammarAsync(mediaMenuGrammar);

        // Keep the console window open.
        Console.ReadLine();
      }
    }

    // Handle the SpeechRecognitionRejected event.
    static void recognizer_SpeechRecognitionRejected(object sender, SpeechRecognitionRejectedEventArgs e)
    {
      Console.WriteLine("Speech input was rejected.");
      foreach (RecognizedPhrase phrase in e.Result.Alternates)
      {
        Console.WriteLine("  Rejected phrase: " + phrase.Text);
        Console.WriteLine("  Confidence score: " + phrase.Confidence);
      }
    }

    // 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);
    }
  }
}

Opmerkingen

De SpeechRecognitionRejected gebeurtenis wordt gegenereerd door de SpeechRecognizer en SpeechRecognitionEngine klassen.

SpeechRecognitionRejected gebeurtenissen worden gegenereerd door een spraakherkenningsengine wanneer geen van de alternatieven van een herkenningsbewerking een hoge betrouwbaarheidsscore heeft die moet worden geaccepteerd. Gedetailleerde informatie over geweigerde woordgroepen is beschikbaar via de Result eigenschap.

SpeechRecognitionRejectedEventArgs is afgeleid van RecognitionEventArgs.

Zie ook

• RecognitionEventArgs
• RecognitionResult
• SpeechRecognitionRejected
• SpeechRecognitionRejected
• SpeechRecognized
• SpeechRecognized
• SpeechRecognizedEventArgs
• SpeechHypothesized
• SpeechHypothesized
• SpeechHypothesizedEventArgs