SpeechDetectedEventArgs Class
Returns data from SpeechRecognitionEngine.SpeechDetected or SpeechRecognizer.SpeechDetected events.
Namespace: System.Speech.Recognition
Assembly: System.Speech (in System.Speech.dll)
The SpeechDetectedEventArgs type exposes the following members.
| Name | Description | |
|---|---|---|
 | Equals(Object) | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
A SpeechDetected event is raised by the SpeechRecognizer and SpeechRecognitionEngine classes.
SpeechDetected events are generated when a recognition engine can identify audio input as human speech.
SpeechDetectedEventArgs derives from EventArgs.
The example below creates a handler for SpeechRecognizer.SpeechDetected or SpeechRecognitionEngine.SpeechDetected events. The handler initializes a display every time speech is detected and displays status information, including audio position.
_recognizer.SpeechDetected +=
delegate(object sender, SpeechDetectedEventArgs eventArgs)
{
// Clear previous recognition information.
_audioDeviceStatusLabel.Enabled = true;
_audioDeviceStatusLabel.Visible = true;
Utils.DisplayAudioInputFormat(_audioStateLabel, _recognizer);
Utils.DisplayRecognizerState(_recognizerStateLabel, _recognizer.State);
Utils.DisplaySpeechDetected(_speechDetectedLabel, eventArgs.AudioPosition);
};
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
