public MainEngine(MainSystemTray form)
{
//Fetch the list of commands
commandList = SettingsSingleton.Instance().Commands;
// Create the speech recognition engine
speechRecognizer = createSpeechRecogntionEngine(form);
stateController = new StateController();
//Register to the event that provides the fixations
EventSingleton.Instance().fixationEvent += sharedData_fixationEvent;
//Register to the event that fires when keyboard keys are pressed
EventSingleton.Instance().systemHook.KeyDown += sharedData_keyboardEvent;
speechRecognizer.SpeechRecognized += SpeechRecognised;
}
private SpeechRecognitionEngine createSpeechRecogntionEngine(MainSystemTray form)
{
SpeechRecognitionEngine newSpeechRecognizer = new SpeechRecognitionEngine(CultureInfo.CurrentCulture);
//Setting up the grammars for the voice recognizer
Grammar commandGrammar = createCommandGrammar();
commandGrammar.Weight = 1f;
//"grammar:dictation#pronunciation"
Grammar dictationGrammar = new DictationGrammar("grammar:dictation");
dictationGrammar.Name = DictationState.GRAMMARNAME;
dictationGrammar.Weight = .3f;
//Setting up the voice recognizer to start listening for commands and send them to the SpeechRecognised method
newSpeechRecognizer.RequestRecognizerUpdate();
newSpeechRecognizer.LoadGrammar(commandGrammar);
newSpeechRecognizer.LoadGrammar(dictationGrammar);
try
{
newSpeechRecognizer.SetInputToDefaultAudioDevice();
newSpeechRecognizer.RecognizeAsync(RecognizeMode.Multiple);
}
catch (System.InvalidOperationException)
{
if (MessageBox.Show(
"You do not have an audio capture device installed \nPlease install a microphone and restart the program",
"No Capture Device", MessageBoxButtons.OK) == DialogResult.OK)
{
form.ExitProgram();
}
}
return newSpeechRecognizer;
}
