SpeechRecognitionRejectedEventArgs Klass

Definition

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

public class SpeechRecognitionRejectedEventArgs : System.Speech.Recognition.RecognitionEventArgs

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

type SpeechRecognitionRejectedEventArgs = class
    inherit RecognitionEventArgs

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

Public Class SpeechRecognitionRejectedEventArgs
Inherits RecognitionEventArgs

Arv

Object

EventArgs

RecognitionEventArgs

SpeechRecognitionRejectedEventArgs

Attribut

SerializableAttribute

Exempel

I följande exempel identifieras fraser som "Visa listan över artister i jazzkategorin" eller "Visa albumevangeliet". I exemplet används en hanterare för händelsen för SpeechRecognitionRejected att visa ett meddelande i konsolen när talindata inte kan matchas med innehållet i grammatiken med tillräcklig konfidens för att skapa en lyckad igenkänning.

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);
    }
  }
}

Kommentarer

Händelsen SpeechRecognitionRejected genereras av SpeechRecognizer klasserna och SpeechRecognitionEngine .

SpeechRecognitionRejected-händelser genereras av en taligenkänningsmotor när ingen av alternativen från en igenkänningsåtgärd har tillräckligt hög konfidenspoäng för att accepteras. Detaljerad information om avvisade fraser finns tillgänglig via egenskapen Result .

SpeechRecognitionRejectedEventArgs härleds från RecognitionEventArgs.

Se även

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