ISpeechVoiceStatus VisemeId Property (SAPI 5.4)

Microsoft Speech API 5.4

Interface: ISpeechVoiceStatus

VisemeId Property

The VisemeId property retrieves the ID of the current viseme being spoken by the voice.


Set: (This property is read-only)
Get: Integer = ISpeechVoiceStatus.VisemeId


  • ISpeechVoiceStatus
    The owning object.
  • Integer
    Set: (This property is read-only)
    Get: An Integer variable returning the VisemeId.


The following Visual Basic form code demonstrates the use of the VisemeId property of an ISpeechVoiceStatus object. To run this code, create a form with the following controls:

  • A command button called Command1
  • Two text boxes called Text1 and Text2

Paste this code into the Declarations section of the form.

The Form_Load procedure creates a voice object and places a sentence in the text box. The Command1_Click procedure speaks the contents of the text box asynchronously, and loops until the voice has finished speaking. Inside the loop, the code checks VisemeId property periodically and displays it in Text2.

Option Explicit

Private V As SpeechLib.SpVoice

Private Sub Command1_Click()
    Dim ii As Integer

    On Error GoTo EH

    Text2.Text = ""
    V.Speak Text1.Text, SVSFlagsAsync

        For ii = 0 To 20000
        Next ii
        Text2.Text = Text2.Text & V.Status.VisemeId & " "

    Loop While V.Status.RunningState = SRSEIsSpeaking

    If Err.Number Then ShowErrMsg
End Sub

Private Sub Form_Load()

    Set V = New SpVoice
    Text1.Text = "say, see, sigh, so, sue."
    Text2.Text = ""

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 Sub