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How do you use the .NET speech namespace classes to convert audio in a WAV file to textual form which I can display on the screen or save to file? I am looking for some tutorial samples. UPDATE Found a code sample here . But when I tried it it gives incorrect results. Below is the vb code sample I've adopted. (Actually I don't mind the lang as long as its either vb/c#...). It is not giving me proper results. I assume if we put the right grammar - i.e. the words we expect in the recording - we should get the textual output of that. First I've tried with sample words that are in the call. It sometimes printed only that (one) word and nothing else. Then I tried words which we totally do not expect in the recording...Unfortunately it printed out that too... :( Imports System Imports System.Speech.Recognition 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 dr As DialogResult dr = OpenFileDialog1.ShowDialog() If dr = Windows.Forms.DialogResult.OK Then If Not OpenFileDialog1.FileName.Contains("wav") Then MessageBox.Show("Incorrect file") Else Tex

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