public SpeechLib.SpVoice vox = new SpVoiceClass();public void Button1_Click(object sender, EventArgs e)
{
    vox.Speak(Text1.Text, SpeechVoiceSpeakFlags.SVSFlagsAsync);
    vox.Viseme +=new _ISpeechVoiceEvents_VisemeEventHandler(this.vox_Viseme);
}public void vox_Viseme(long StreamNumber, object StreamPosition, long Duration, SpeechLib.SpeechVisemeType NextVisemeId, SpeechLib.SpeechVisemeFeature Feature, SpeechLib.SpeechVisemeType CurrentVisemeId)
{
    Label1.Text = Label1.Text + CurrentVisemeId + " ";}