Question

I’ve started using .NET speech-to-text library (SpeechRecognizer)

While googling and searching this site i found this code sample:

var c = new Choices();
for (var i = 0; i <= 100; i++)
  c.Add(i.ToString());
var gb = new GrammarBuilder(c);
var g = new Grammar(gb);
rec.UnloadAllGrammars();
rec.LoadGrammar(g);
rec.Enabled = true;

Which helped me to start. I changed these 2 lines

for (var i = 0; i <= 100; i++)
   c.Add(i.ToString());

to my need

c.Add("Open");
c.Add("Close");

But, when I say ‘Close’, the speech recognizer of windows closes my application!

In addition, Is there a better way to recognize speech than to create my own dictionary? I would like the user to say something like: “Write a note to myself” and then the user will speak and I’ll write.

Sorry for asking 2 questions at the same question, both seem to be relevant to my one problem.

Answer 1

You are using the shared speech recognizer (SpeechRecognizer). When you instantiate
SpeechRecognizer you get a recognizer that can be shared by other applications and is typically used for building applications to control windows and applications running on the desktop.

It sounds like you want to use your own private recognition engine (SpeechRecognitionEngine). So instantiate a SpeechRecognitionEngine instead.

see SpeechRecognizer Class.

Disable built-in speech recognition commands? may also have some helpful info.

Microsoft’s desktop recognizers include a special grammar called a dictation grammar that can be used to transcribe arbitrary words spoken by the user. You can use the dictation grammar to do transcription style recognition. See DictationGrammar Class and SAPI and Windows 7 Problem