AudioState Enumeration

.NET Framework (current version)

Contains a list of possible states for the audio input to a speech recognition engine.

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

Syntax

public enum class AudioState

Members

	Member name	Description
	Silence	Receiving silence or non-speech background noise.
	Speech	Receiving speech input.
	Stopped	Not processing audio input.

Remarks

You can obtain the audio input state of the speech recognition engine with the SpeechRecognitionEngine::AudioState and SpeechRecognizer::AudioState properties. The SpeechRecognitionEngine::AudioStateChanged and SpeechRecognizer::AudioStateChanged events are raised when the audio input state of a speech recognition engine changes.

Examples

The following example demonstrates an event handler that handles the changing audio state of a speech recognizer.


private SpeechRecognitionEngine sre;

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

  // Add a handler for the AudioStateChanged event.
  sre.AudioStateChanged += new EventHandler<AudioStateChangedEventArgs>(sre_AudioStateChanged);

  // Add other initialization code here.
}

  // Handle the AudioStateChanged event.
  void sre_AudioStateChanged(object sender, AudioStateChangedEventArgs e)
{
  AudioState newState = e.AudioState;

  // Handle event here.
}

Version Information

.NET Framework
Available since 3.0