SpeechRecognitionEngine.AudioSignalProblemOccurred 事件
定义
重要
一些信息与预发行产品相关，相应产品在发行之前可能会进行重大修改。 对于此处提供的信息，Microsoft 不作任何明示或暗示的担保。
当 SpeechRecognitionEngine 检测在音频信号的问题的时候引发。
public:
event EventHandler<System::Speech::Recognition::AudioSignalProblemOccurredEventArgs ^> ^ AudioSignalProblemOccurred;public event EventHandler<System.Speech.Recognition.AudioSignalProblemOccurredEventArgs> AudioSignalProblemOccurred;member this.AudioSignalProblemOccurred : EventHandler<System.Speech.Recognition.AudioSignalProblemOccurredEventArgs> Public Custom Event AudioSignalProblemOccurred As EventHandler(Of AudioSignalProblemOccurredEventArgs) 事件类型
示例
以下示例定义一个事件处理程序，用于收集有关事件 AudioSignalProblemOccurred 的信息。
private SpeechRecognitionEngine recognizer;
// Initialize the speech recognition engine.
private void Initialize()
{
recognizer = new SpeechRecognitionEngine();
// Add a handler for the AudioSignalProblemOccurred event.
recognizer.AudioSignalProblemOccurred +=
new EventHandler<AudioSignalProblemOccurredEventArgs>(
recognizer_AudioSignalProblemOccurred);
}
// Gather information when the AudioSignalProblemOccurred event is raised.
void recognizer_AudioSignalProblemOccurred(object sender, AudioSignalProblemOccurredEventArgs e)
{
StringBuilder details = new StringBuilder();
details.AppendLine("Audio signal problem information:");
details.AppendFormat(
" Audio level: {0}" + Environment.NewLine +
" Audio position: {1}" + Environment.NewLine +
" Audio signal problem: {2}" + Environment.NewLine +
" Recognition engine audio position: {3}" + Environment.NewLine,
e.AudioLevel, e.AudioPosition, e.AudioSignalProblem,
e.recoEngineAudioPosition);
// Insert additional event handler code here.
}
注解
若要获取哪个问题发生了，请使用 AudioSignalProblem 关联的 AudioSignalProblemOccurredEventArgs的 属性。
创建 AudioSignalProblemOccurred 委托时，需要标识将要处理该事件的方法。 若要将事件与事件处理程序关联，请将该委托的一个实例添加到事件中。 除非移除了该委托，否则每当发生该事件时就会调用事件处理程序。 有关事件处理程序委托的详细信息，请参阅 事件和委托。
