public static void Main(string[] args)
{
// Obtain a KinectSensor if any are available
KinectSensor sensor = (from sensorToCheck in KinectSensor.KinectSensors where sensorToCheck.Status == KinectStatus.Connected select sensorToCheck).FirstOrDefault();
if (sensor == null)
{
Console.WriteLine(
"No Kinect sensors are attached to this computer or none of the ones that are\n" +
"attached are \"Connected\".\n" +
"Attach the KinectSensor and restart this application.\n" +
"If that doesn't work run SkeletonViewer-WPF to better understand the Status of\n" +
"the Kinect sensors.\n\n" +
"Press any key to continue.\n");
// Give a chance for user to see console output before it is dismissed
Console.ReadKey(true);
return;
}
sensor.Start();
// Obtain the KinectAudioSource to do audio capture
KinectAudioSource source = sensor.AudioSource;
source.EchoCancellationMode = EchoCancellationMode.None; // No AEC for this sample
source.AutomaticGainControlEnabled = false; // Important to turn this off for speech recognition
System.Speech.Recognition.RecognizerInfo ri = System.Speech.Recognition.SpeechRecognitionEngine.InstalledRecognizers().FirstOrDefault();
using (var recoEngine = new System.Speech.Recognition.SpeechRecognitionEngine(ri.Id))
{
// Create the question dictation grammar.
System.Speech.Recognition.DictationGrammar customDictationGrammar = new System.Speech.Recognition.DictationGrammar();
customDictationGrammar.Name = "Dictation";
customDictationGrammar.Enabled = true;
// Create a SpeechRecognitionEngine object and add the grammars to it.
recoEngine.LoadGrammar(customDictationGrammar);
recoEngine.SpeechRecognized += (s, sargs) => Console.Write(sargs.Result.Text);
using (Stream s = source.Start())
{
recoEngine.SetInputToAudioStream(s, new System.Speech.AudioFormat.SpeechAudioFormatInfo(System.Speech.AudioFormat.EncodingFormat.Pcm, 16000, 16, 1, 32000, 2, null));
Console.WriteLine("Dictating. Press ENTER to stop");
recoEngine.RecognizeAsync(System.Speech.Recognition.RecognizeMode.Multiple);
Console.ReadLine();
Console.WriteLine("Stopping recognizer ...");
recoEngine.RecognizeAsyncStop();
}
}
sensor.Stop();
}
public void speechToTextInit()
{
//This method is used for converting speech into text
//Creates an instance of the system.speech speech recognition engine for use with speech to text
stt_sre = new System.Speech.Recognition.SpeechRecognitionEngine();
//Uses dictation grammar to allow freedom of speech for entering any word detected
System.Speech.Recognition.Grammar dictationGrammar = new System.Speech.Recognition.DictationGrammar();
//Loads the dictation grammar into the speech recognition engine
stt_sre.LoadGrammar(dictationGrammar);
try
{
//Try catch is used here to catch any invalid operation exceptions that could occur when detecting speech to text
stt_sre.SetInputToDefaultAudioDevice();
//Saves result from speech recognition as a recognition result object
System.Speech.Recognition.RecognitionResult result = stt_sre.Recognize();
if (result != null)
{
//Speech result is set to the string of the result to be used in speech to text
speechResult = result.Text;
//Removes any spaces to prevent inconsistencies
speechResult.Replace(",", "");
Console.WriteLine("The result is: " + speechResult);
try
{
//Used in passing results from speech to text to other classes
speechInputCheck(speechResult);
}
catch (NullReferenceException null_ref)
{
//Used in catching if the speechResult is null, showing that the exception has been thrown and its source
Console.WriteLine("NullReferenceException thrown in speech: " + null_ref.Message + null_ref.Source);
}
}
}
catch (InvalidOperationException invalid)
{
Console.WriteLine("InvalidOperationException in speech: " + invalid.Message + invalid.Source);
}
finally
{
//Unloads the speech recognition engine once finished
stt_sre.UnloadAllGrammars();
}
}