SpeechRecognizer.SpeechRecognized 事件
定義
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
當辨識器接收到符合其中一個語音辨識文法的輸入時發生。
public:
event EventHandler<System::Speech::Recognition::SpeechRecognizedEventArgs ^> ^ SpeechRecognized;public event EventHandler<System.Speech.Recognition.SpeechRecognizedEventArgs> SpeechRecognized;member this.SpeechRecognized : EventHandler<System.Speech.Recognition.SpeechRecognizedEventArgs> Public Custom Event SpeechRecognized As EventHandler(Of SpeechRecognizedEventArgs) Public Event SpeechRecognized As EventHandler(Of SpeechRecognizedEventArgs) 事件類型
範例
下列範例是主控台應用程式的一部分，它會載入語音辨識文法，並示範共用辨識器的語音輸入、相關聯的辨識結果，以及語音辨識器所引發的相關聯事件。 如果 Windows 語音辨識未執行，啟動此應用程式也會啟動 Windows 語音辨識。
口語輸入，例如「我想要從芝加哥飛到紐約」，將會觸發 SpeechRecognized 活動。 說出「從芝加哥飛出我」這個片語將不會觸發 SpeechRecognized 事件。
此範例會使用 SpeechRecognized 事件的處理常式來顯示成功辨識的片語及其包含在主控台中的語意。
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 SemanticResultValue objects that contain cities and airport codes.
SemanticResultValue chicago = new SemanticResultValue("Chicago", "ORD");
SemanticResultValue boston = new SemanticResultValue("Boston", "BOS");
SemanticResultValue miami = new SemanticResultValue("Miami", "MIA");
SemanticResultValue dallas = new SemanticResultValue("Dallas", "DFW");
// Create a Choices object and add the SemanticResultValue objects, using
// implicit conversion from SemanticResultValue to GrammarBuilder
Choices cities = new Choices();
cities.Add(new Choices(new GrammarBuilder[] { chicago, boston, miami, dallas }));
// Build the phrase and add SemanticResultKeys.
GrammarBuilder chooseCities = new GrammarBuilder();
chooseCities.Append("I want to fly from");
chooseCities.Append(new SemanticResultKey("origin", cities));
chooseCities.Append("to");
chooseCities.Append(new SemanticResultKey("destination", cities));
// Build a Grammar object from the GrammarBuilder.
Grammar bookFlight = new Grammar(chooseCities);
bookFlight.Name = "Book Flight";
// Add a handler for the LoadGrammarCompleted event.
recognizer.LoadGrammarCompleted +=
new EventHandler<LoadGrammarCompletedEventArgs>(recognizer_LoadGrammarCompleted);
// Add a handler for the SpeechRecognized event.
recognizer.SpeechRecognized +=
new EventHandler<SpeechRecognizedEventArgs>(recognizer_SpeechRecognized);
// Load the grammar object to the recognizer.
recognizer.LoadGrammarAsync(bookFlight);
// Keep the console window open.
Console.ReadLine();
}
}
// Handle the LoadGrammarCompleted event.
static void recognizer_LoadGrammarCompleted(object sender, LoadGrammarCompletedEventArgs e)
{
Console.WriteLine("Grammar loaded: " + e.Grammar.Name);
Console.WriteLine();
}
// Handle the SpeechRecognized event.
static void recognizer_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
{
Console.WriteLine("Speech recognized: " + e.Result.Text);
Console.WriteLine();
Console.WriteLine("Semantic results:");
Console.WriteLine(" The flight origin is " + e.Result.Semantics["origin"].Value);
Console.WriteLine(" The flight destination is " + e.Result.Semantics["destination"].Value);
}
}
}
備註
如果辨識器判斷輸入符合其中一個已載入和啟用語音辨識文法，則辨識器會引發 SpeechRecognized 事件。 的 ResultSpeechRecognitionRejectedEventArgs 屬性包含已 RecognitionResult 接受的物件。
由 管理的 SpeechRecognizer 共用辨識器信賴臨界值會與使用者設定檔相關聯，並儲存在 Windows 登錄中。 應用程式不應該為共用辨識器的屬性，將變更寫入登錄。
當辨識器收到符合文法的輸入時， Grammar 物件可以引發 SpeechRecognized 事件。 物件 GrammarSpeechRecognized 的事件會在語音辨識器 SpeechRecognized 的事件之前引發。
當您建立 SpeechRecognized 事件的委派時，您會識別將處理事件的方法。 若要使事件與您的事件處理常式產生關聯，請將委派的執行個體 (Instance) 加入至事件。 除非您移除委派，否則每當事件發生時就會呼叫事件處理常式。 如需事件處理常式委派的詳細資訊，請參閱 事件和委派。
