Note
Please see Azure Cognitive Services for Speech documentation for the latest supported speech solutions.
SpeechDetectedEventArgs Class
Provides data for the SpeechDetected event.
Inheritance Hierarchy
System.Object
System.EventArgs
Microsoft.Speech.Recognition.SpeechDetectedEventArgs
Namespace: Microsoft.Speech.Recognition
Assembly: Microsoft.Speech (in Microsoft.Speech.dll)
Syntax
'Declaration
Public Class SpeechDetectedEventArgs _
Inherits EventArgs
'Usage
Dim instance As SpeechDetectedEventArgs
public class SpeechDetectedEventArgs : EventArgs
Remarks
An instance of SpeechDetectedEventArgs is created when the SpeechRecognitionEngine object raises the SpeechDetected event. To obtain the location in the audio stream where the event was raised, access the AudioPosition property in the handler for the event.
SpeechDetected events are generated when a recognition engine can identify audio input as human speech.
SpeechDetectedEventArgs derives from EventArgs.
Examples
In the example below, a handler is created for SpeechDetected events which 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);
};
Thread Safety
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
See Also
Reference
SpeechDetectedEventArgs Members