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SpeechDetectedEventArgs.AudioPosition Property

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

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

public TimeSpan AudioPosition { 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.

_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

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4
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