Microsoft Speech SDK
Interface: ISpeechVoiceStatus
InputWordLength Property
The InputWordLength property retrieves the length of the word currently being spoken by the text-to-speech (TTS) engine.
The InputWordLength property of an ISpeechVoiceStatus object is valid only when its RunningState property is SRSEIsSpeaking.
Syntax
| Set: | (This property is read-only) |
| Get: | Long = ISpeechVoiceStatus.InputWordLength |
Parts
- ISpeechVoiceStatus
- The owning object.
- Long
-
Set: (This property is read-only)
Get: A Long variable returning the word length.
Example
The following Visual Basic form code demonstrates the use of the InputWordLength and InputWordPosition properties of an ISpeechVoiceStatus object. To run this code, create a form with the following controls:
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 finishes speaking. In this loop, the code uses InputSentencePosition and InputSentenceLength properties to highlight each word in the text box as it is spoken by the TTS engine. A RunningState property of SRSEDone indicates that the voice has finished speaking.
Option Explicit
Dim V As SpeechLib.SpVoice
Private Sub Command1_Click()
Dim ii As Integer
Dim S As SpeechLib.ISpeechVoiceStatus
V.Speak Text1.Text, SVSFlagsAsync 'Speak the user-editable text
'Check status periodically
Do
For ii = 0 To 5000
DoEvents
Next ii
Set S = V.Status 'Get status in an ISpeechVoiceStatus object
'Text1.HideSelection must be False for this selection to be seen!
Text1.SelStart = S.InputWordPosition
Text1.SelLength = S.InputWordLength
Loop Until V.Status.RunningState = SRSEDone 'Exit when voice stops
Text1.SelLength = 0
End Sub
Private Sub Form_Load()
Set V = New SpVoice
Text1.Text = "This is a sentence containing several words."
End Sub