Using microsoft speech recognition, could I get the time when half of the grammar has been recognized?

Question

I want to use the grammar like this: This is + name.

The code is :

GrammarBuilder grammar = new GrammarBuilder();
grammar.Append("This is");
gammar.Append(new Choices("Bangalore", "Sanjay", "Cindy",...));
_recognizer.LoadGrammar(new Grammar(grammar));

My question is, could I send the event when the engine recognize This is, and send another event when the engine recognize the name?

How to do this?

Answer 1

I think you might be able to do this by using phrases

GrammarBuilder thisIsPhrase = new GrammarBuilder("This is");
Choices choices = new Choices("Dog, Cat");
GrammarBuilder endPhrase = new GrammarBuilder(choices);
Choices both = new Choices(new GrammarBuilder[] { thisIsPhrase, endPhrase });
Grammar dictationGrammar = new Grammar((GrammarBuilder)both);

See MSDN.

I haven't been able to test it yet though.

Update: the choices phrase doesn't seem to work.

GrammarBuilder thisIsPhrase = new GrammarBuilder("This is");
GrammarBuilder endPhrase = new GrammarBuilder("Dog");  //repeat creating phrases
Choices both = new Choices(new GrammarBuilder[] { thisIsPhrase, endPhrase });//also need to add phrases here
Grammar dictationGrammar = new Grammar((GrammarBuilder)both);