SpeechDetectedEventArgs.AudioPosition Property

Gets the audio position of a detected speech segment.

Namespace: Microsoft.Speech.Recognition
Assembly: Microsoft.Speech (in microsoft.speech.dll)


Public ReadOnly Property AudioPosition As TimeSpan
public TimeSpan AudioPosition { get; }
property TimeSpan AudioPosition {
    TimeSpan get ();
/** @property */
public TimeSpan get_AudioPosition ()
public function get AudioPosition () : TimeSpan

Property Value

Returns an instance of System.TimeSpan, which contains the location of a detected phrase within the speech buffer of a recognition engine.


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.DisplayAudioInputStatus(_audioDeviceStatusLabel, _recognizer.AudioStatus);
        Utils.DisplaySpeechDetected(_speechDetectedLabel, eventArgs.AudioPosition);

Thread Safety

All public static (Shared in Visual Basic) members of this type are thread-safe. Instance members are not guaranteed to be thread-safe.


Development Platforms

Windows XP Professional with Service Pack 2 (SP2), Windows Server 2003, Windows Vista Ultimate Edition, Windows Vista Business Edition, Windows Vista Enterprise Edition

Target Platforms

See Also


SpeechDetectedEventArgs Class
SpeechDetectedEventArgs Members
Microsoft.Speech.Recognition Namespace
SpeechDetectedEventArgs Class