SpeechRecognizer.RequestRecognizerUpdate Method (Object, TimeSpan)
Requests that the shared recognizer pause and update its state and provides an offset and a user token for the associated event.
Assembly: System.Speech (in System.Speech.dll)
public void RequestRecognizerUpdate( Object userToken, TimeSpan audioPositionAheadToRaiseUpdate )
The recognizer does not initiate the recognizer update request until the recognizer's RecognizerAudioPosition equals the current AudioPosition plus the value of the audioPositionAheadToRaiseUpdate parameter.