Wave file to text convertor

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C#

I am working on a project in which I want to transcribe my audio files to text form using SAPI.
Audio files are usually in wave format and only contain text content, so it is easy for the engine to recognize that and convert to text.

Pre requested. SAPI Engine should be trained with User voice before recognizing. Please help urgently.

I have got a sample code from another forum but it didn't work out for me. I am not language specific so any language code will be entertained.

Imports System
Imports SpeechLib
Imports System.Speech.Recognition
'Imports AudioUtils;

Public Class Form1

    Dim WithEvents sre As SpeechRecognitionEngine

    Private Sub btnLiterate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLiterate.Click
        If TextBox1.Text.Trim.Length = 0 Then Exit Sub
        sre.SetInputToWaveFile(TextBox1.Text)
        Dim r As RecognitionResult
        r = sre.Recognize()
        If r Is Nothing Then
            TextBox2.Text = "Could not fetch result"
            Return
        End If
        TextBox2.Text = r.Text
    End Sub

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        TextBox1.Text = String.Empty

        Dim fileDlg As New OpenFileDialog()
        'Dim wave As WaveFile()

        If fileDlg.ShowDialog() = DialogResult.OK Then
            'wave = New WaveFile(fileDlg.FileName)

            TextBox1.Text = "Reading .WAV file..."

            'wave.Read()

            TextBox1.Text = OpenFileDialog1.FileName
            'TextBox1.Text = "Finished Reading .WAV file..."

            'm_DrawWave = True

            Refresh()

        End If

        'Dim dr As DialogResult
        'dr = OpenFileDialog1.ShowDialog()
        'If dr = Windows.Forms.DialogResult.OK Then
        '    If Not OpenFileDialog1.FileName.Contains("D:\\Documents and Settings\\Umaid\\My Documents\\Visual Studio 2008\\Projects\\AudioTest\\AudioTest\\Check1.wav") Then
        '        MessageBox.Show("Incorrect file")
        '    Else
        '        TextBox1.Text = OpenFileDialog1.FileName
        '    End If
        'End If
    End Sub

    Public Sub New()

        ' This call is required by the Windows Form Designer.
        InitializeComponent()

        sre = New SpeechRecognitionEngine()

    End Sub

    Private Sub sre_LoadGrammarCompleted(ByVal sender As Object, ByVal e As System.Speech.Recognition.LoadGrammarCompletedEventArgs) Handles sre.LoadGrammarCompleted

    End Sub

    Private Sub sre_SpeechHypothesized(ByVal sender As Object, ByVal e As System.Speech.Recognition.SpeechHypothesizedEventArgs) Handles sre.SpeechHypothesized
        System.Diagnostics.Debug.Print(e.Result.Text)
    End Sub

    Private Sub sre_SpeechRecognitionRejected(ByVal sender As Object, ByVal e As System.Speech.Recognition.SpeechRecognitionRejectedEventArgs) Handles sre.SpeechRecognitionRejected
        System.Diagnostics.Debug.Print("Rejected: " & e.Result.Text)
    End Sub

    Private Sub sre_SpeechRecognized(ByVal sender As Object, ByVal e As System.Speech.Recognition.SpeechRecognizedEventArgs) Handles sre.SpeechRecognized
        System.Diagnostics.Debug.Print(e.Result.Text)
    End Sub

    Private Sub Form1_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Dim words As String() = New String() {"Umaid Saleem"}
        Dim c As New Choices(words)
        Dim grmb As New GrammarBuilder(c)
        Dim grm As Grammar = New Grammar(grmb)
        sre.LoadGrammar(grm)
    End Sub

End Class