Help to Convert Audio File to Text

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C#

.NET

hi,

i want to convert wave file to Text format. i treid the below code it shows some output , but the words are not the same whats on the wave file, some words are correct and some are not correct.

no the main pbm is when i run the page it just keeps loading and not showing the output. if i put break point only i can able to see the output. What might be the pbm how to solve this?.
am new to this concept i dont know how to solve, i searched a lot for 2 days but cant find any reults.

pls help me out..

the below Are the codes I tried:

Code 1:

public void converttotext()
    {
        string name = "F:\\August 2013\\test4.wav";
        SpeechRecognitionEngine sre = new SpeechRecognitionEngine();
        Grammar gr = new DictationGrammar();
        sre.LoadGrammar(gr);
        sre.SetInputToWaveFile(name);
        //sre.BabbleTimeout = new TimeSpan(Int32.MaxValue);
        //sre.InitialSilenceTimeout = new TimeSpan(Int32.MaxValue);
        //sre.EndSilenceTimeout = new TimeSpan(10);
        //sre.EndSilenceTimeoutAmbiguous = new TimeSpan(10);
        RecognitionResult result = sre.Recognize(new TimeSpan(10));

        text = result.Text;

        sre.Dispose();

        return text;
}

Code 2:

SpeechRecognitionEngine RecognitionEngine;
                using (RecognitionEngine = new SpeechRecognitionEngine(new CultureInfo("en-US")))
                    {
                    RecognitionEngine.SetInputToWaveFile("F:\\August 2013\\test4.wav");
                    RecognitionEngine.SetInputToDefaultAudioDevice();
//RecognitionEngine.RecognizeCompleted += new EventHandler<recognizecompletedeventargs>(RecognitionEngine_RecognizeCompleted); 
                    RecognitionEngine.LoadGrammar(new DictationGrammar());
                    RecognitionResult Result = RecognitionEngine.Recognize();
                     RecognitionEngine.RecognizeAsync(RecognizeMode.Single);

                    StringBuilder Output = new StringBuilder();
                    foreach (RecognizedWordUnit Word in Result.Words)
                        {
                            Output.Append(Word.Text + " ");
                        }

// RecognitionEngine.RecognizeAsyncStop();

                    Label3.Text = Output.ToString();

                    RecognitionEngine.Dispose();
//Dispose();</recognizecompletedeventargs>