AudioSignalProblemOccurredEventArgs Class

AudioSignalProblemOccurredEventArgs Class


Provides data for the AudioSignalProblemOccurred event of a SpeechRecognizer or a SpeechRecognitionEngine.

Namespace:   System.Speech.Recognition
Assembly:  System.Speech (in System.Speech.dll)


public ref class AudioSignalProblemOccurredEventArgs : EventArgs


Gets the audio level associated with the event.


Gets the position in the input device's audio stream that indicates where the problem occurred.


Gets the audio signal problem.


Gets the position in the audio input that the recognizer has received that indicates where the problem occurred.


Determines whether the specified object is equal to the current object.(Inherited from Object.)


Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)


Serves as the default hash function. (Inherited from Object.)


Gets the Type of the current instance.(Inherited from Object.)


Creates a shallow copy of the current Object.(Inherited from Object.)


Returns a string that represents the current object.(Inherited from Object.)

An instance of AudioSignalProblemOccurredEventArgs is created when the SpeechRecognitionEngine or SpeechRecognizer object raises an AudioSignalProblemOccurred event. To obtain information related to an AudioSignalProblemOccurred event, access the following properties in the handler for the event:

The AudioPosition property references the input device's position in its generated audio stream. By contrast, the RecognizerAudioPosition property references the recognizer's position within its audio input. These positions can be different. For more information, see .01c598ca-2e0e-4e89-b303-cd1cef9e8482

The AudioSignalProblem property indicates which problem occurred.

AudioSignalProblemOccurredEventArgs derives from EventArgs.

The following example defines an event handler that gathers information about an AudioSignalProblemOccurred event.

private SpeechRecognitionEngine sre;

// Initialize the speech recognition engine.
private void Initialize()
  sre = new SpeechRecognitionEngine();

  // Add a handler for the AudioSignalProblemOccurred event.
  sre.AudioSignalProblemOccurred += new EventHandler<AudioSignalProblemOccurredEventArgs>(sre_AudioSignalProblemOccurred);

// Gather information when the AudioSignalProblemOccurred event is raised.
void sre_AudioSignalProblemOccurred(object sender, AudioSignalProblemOccurredEventArgs e)
  StringBuilder details = new StringBuilder();

  details.AppendLine("Audio signal problem information:");
    " 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,

  // Insert additional event handler code here.

.NET Framework
Available since 3.0

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Return to top
© 2015 Microsoft