ISpeechRecoResult Times Property (SAPI 5.3)

Microsoft Speech API 5.3

Interface: ISpeechRecoResult

Times Property

The Times property retrieves the time information associated with the result.

Syntax

Parts

• ISpeechRecoResult
  The owning object.
• ISpeechRecoResultTimes
  Set: (This property is read-only)
  Get: An ISpeechRecoResultTimes variable containing the time information for the recognition.

Example

The following Visual Basic form code reads ISpeechRecoResultTimes for the current recognition. Because that object's four properties are read-only, their values are added to a string for display in a message box. RecoResult.

To run this code, paste it into the Declarations section of a form that contains no controls. In addition to the usual reference to the Microsoft Speech Object Library, this code also needs a reference to the simpleaudio 1.0 Type Library.

  
Option Explicit

Const AUDIOFORMAT = SAFT8kHz16BitMono

' Text-to-Speech variables:
Dim WithEvents Voice As SpVoice
Dim EndofStream As Boolean
Dim AudioPlugOut As SpAudioPlug

' Speech Recognition variables:
Dim WithEvents RecoContext As SpInProcRecoContext
Dim Grammar As ISpeechRecoGrammar
Dim Recognizer As SpInprocRecognizer
Dim AudioPlugIn As SpAudioPlug

Private Sub Form_Load()

    Const Text = "One of the world's seven wonders"
    Dim Output As Variant

    On Error GoTo EH

    Set Voice = New SpVoice

    ' Set up output audio:
    Set AudioPlugOut = New SpAudioPlug
    AudioPlugOut.Init True, AUDIOFORMAT
    Set Voice.AudioOutputStream = AudioPlugOut

    ' Set up input audio:
    Set AudioPlugIn = New SpAudioPlug
    AudioPlugIn.Init False, AUDIOFORMAT
    Set Recognizer = New SpInprocRecognizer
    Set Recognizer.AudioInputStream = AudioPlugIn

    ' Set up speech recognition and explicitly set
    ' flag to retain audio portion of recognition
    ' (default behavior is not to retain):
    Set RecoContext = Recognizer.CreateRecoContext
    RecoContext.RetainedAudio = SRAORetainAudio
    Set Grammar = RecoContext.CreateGrammar(1)
    Grammar.DictationLoad
    Grammar.DictationSetState SGDSActive

    ' Speak some text to be recognized.
    Voice.Speak Text, SVSFlagsAsync

    Do While EndofStream = False
        DoEvents

        ' Get audio data from audio object.
        Output = AudioPlugOut.GetData

        ' Output audio data to input audio object--
        If (Len(Output) * 2 <> 0) Then
            AudioPlugIn.SetData (Output)
        End If

    Loop

    Grammar.DictationSetState SGDSInactive

EH:
    If Err.Number Then ShowErrMsg
End Sub

Private Sub RecoContext_Recognition _
   (ByVal StreamNumber As Long, _
    ByVal StreamPosition As Variant, _
    ByVal RecognitionType As SpeechLib.SpeechRecognitionType, _
    ByVal Result As SpeechLib.ISpeechRecoResult)

    Const NL = vbNewLine
    Dim myTimes As ISpeechRecoResultTimes
    Dim T As String

	On Error GoTo EH
    Set myTimes = Result.Times()

    With myTimes
        T = "Len: " & .Length & NL
        T = T & "Start: " & .OffsetFromStart & NL
        T = T & "Time: " & .StreamTime & NL
        T = T & "TickCount: " & .TickCount
        MsgBox T, vbInformation
        End
    End With

EH:
    If Err.Number Then ShowErrMsg
End Sub

Private Sub Voice_EndStream _
   (ByVal StreamNumber As Long, _
    ByVal StreamPosition As Variant)

    EndofStream = True

End Sub

Private Sub ShowErrMsg()

    ' Declare identifiers:
    Dim T As String

    T = "Desc: " & Err.Description & vbNewLine
    T = T & "Err #: " & Err.Number
    MsgBox T, vbExclamation, "Run-Time Error"
    End

End Sub