SpeechRecognitionEngine.SetInputToWavFile() is throwing FormatException

[deostroll]

Hi,

I am trying to convert the voice audio stored in a wav file into
textual format. I've used the SpeechRecognitionEngine class for the
same (in the System.Speech.Recognition namespace). I am getting a
format exception when doing a call to SetInputToWavFile(). Don't
understand what this means...does it mean that my wav file is
corrupt?

I've adopted the code sample as shown in the below link:

http://social.msdn.microsoft.com/Forums/en-US/csharpgeneral/thread/9c6eff5f-94a7-429b-b277-fee7c730bb1a/

Further I've *not* made a call to LoadGrammar(); i.e. I've not set any
grammar. I am directly making a call to SetInputToWavFile() in a
button click event. Could this be the problem?

--deostroll