Exception : Cannot find the requested data item such as a data key or value. ??

Question

hello guys how r u ?

my question is that, i am creating the speech recognition application but in my application

i created the Speech recognition object like

SpeechRecognitionEngine recognitionEngine = new SpeechRecgnitionEngine();

when "recognitionEngine.SetinputToDefaultAudioDevice();" this line execute the exception occur this

"Cannot find the requested data item, such as data key or value."

how can i get the solution about this ???

i hope i will get reply about this

Thanks

Replyy Soon

Vulpes · Answer

First of all I'd check in Control Panel that you do have a suitable audio device both installed and enabled. I'd also check that you have some speech recognizers installed on your system. This line should do it (WF or WPF application): MessageBox.Show(SpeechRecognitionEngine.InstalledRecognizers().Count.ToString());

Exception : Cannot find the requested data item, such as a data key or value. ??