SpeechDetectedEventArgs::AudioPosition Property

.NET Framework (current version)
 

Gets the position in the audio stream where speech was detected.

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

C#
C++
F#
VB
Copy 
public:
property TimeSpan AudioPosition {
	TimeSpan get();
}

Property Value

Type: System::TimeSpan

Returns the location of a detected phrase within a recognition engine’s speech buffer.

The example below creates a handler for SpeechRecognizer::SpeechDetected or SpeechRecognitionEngine::SpeechDetected events. The handler initializes a display each time speech is detected and displays status information, including audio position.

Copy 
_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);
  };

.NET Framework
Available since 3.0
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