protected void SpeechRecognizedCallback(SpeechEngine engine, RecognitionResult rr)
{
// 1. Handle the Listening global state
if (!IsListening)
{
Log("REJECTED not listening");
return;
}
// Compute XPath Navigator
// XPathNavigator xnav = rr.ConstructSmlFromSemantics().CreateNavigator();
var text = rr.Text;
Console.Write("<JSON>");
using (var stream = new MemoryStream()) {
XPathNavigator xnav = rr.ConstructSmlFromSemantics().CreateNavigator();
var nav = xnav.Select("/SML/action/*");
string opts = "";
if (nav.Count > 0)
{
opts = "\"options\": {" + Options(nav) + "}, ";
}
string txt = "\"text\": \"" + rr.Text.Replace("\"", "\\\"").ToString(culture) + "\", ";
string conf = "\"confidence\": " + rr.Confidence.ToString(culture).Replace(",", ".") + ", ";
rr.Audio.WriteToWaveStream(stream);
stream.Position = 0;
var base64 = Convert.ToBase64String(stream.GetBuffer());
string json = "{" + txt + conf + opts + " \"base64\": \"" + base64 + "\"}";
Console.Write(json);
// stream.Position = 0;
// using (FileStream fileStream = new FileStream("F:/temp2.wav", FileMode.CreateNew)) {
// stream.CopyTo(fileStream);
// }
}
Console.Write("</JSON>");
}
static void Main(string[] args)
{
CultureInfo culture = CultureInfo.CreateSpecificCulture("en-US");
Console.OutputEncoding = System.Text.Encoding.UTF8;
string device = "";
string recognizer = "";
string language = "fr-FR";
string hotword = "SARAH";
double confidence = 0.5;
int deviceId = -1;
var grammar = "";
bool help = false;
var p = new OptionSet()
{
{ "device=", "the device id", v => device = v },
{ "recognizer=", "the recognizer id", v => recognizer = v },
{ "language=", "the recognizer language", v => language = v },
{ "grammar=", "the grammar directory", v => grammar = v },
{ "hotword=", "the hotword (default is SARAH)", v => hotword = v },
{ "confidence=", "the reconizer confidence", v => confidence = Double.Parse(v, culture) },
{ "h|help", "show this message and exit", v => help = v != null },
};
List <string> extra;
try { extra = p.Parse(args); }
catch (OptionException e)
{
Console.Write("Listen: ");
Console.WriteLine(e.Message);
Console.WriteLine("Try `Listen --help' for more information.");
return;
}
if (help)
{
ShowHelp(p);
return;
}
// Create Speech Engine & Grammar Manager
SpeechEngine engine = new SpeechEngine(device, recognizer, language, confidence);
GrammarManager.GetInstance().SetEngine(engine, language, hotword);
if (!String.IsNullOrEmpty(grammar))
{
grammar = Path.GetFullPath(grammar);
GrammarManager.GetInstance().Load(grammar, 2);
GrammarManager.GetInstance().Watch(grammar);
}
else
{
GrammarManager.GetInstance().LoadFile("default_" + language + ".xml");
}
engine.Load(GrammarManager.GetInstance().Cache, false);
engine.Init();
// Create Stream
var buffer = new StreamBuffer();
var waveIn = new WaveInEvent();
waveIn.DeviceNumber = deviceId;
waveIn.WaveFormat = new WaveFormat(16000, 2);
waveIn.DataAvailable += (object sender, WaveInEventArgs e) => {
lock (buffer)
{
var pos = buffer.Position;
buffer.Write(e.Buffer, 0, e.BytesRecorded);
buffer.Position = pos;
}
};
waveIn.StartRecording();
// Pipe Stream and start
#if KINECT
var info = new Microsoft.Speech.AudioFormat.SpeechAudioFormatInfo(Microsoft.Speech.AudioFormat.EncodingFormat.Pcm, 16000, 16, 1, 32000, 2, null);
#else
var info = new System.Speech.AudioFormat.SpeechAudioFormatInfo(16000, AudioBitsPerSample.Sixteen, AudioChannel.Stereo);
#endif
engine.SetInputToAudioStream(buffer, info);
engine.Start();
// Prevent console from closing
Console.WriteLine("Waiting for key pressed...");
Console.ReadLine();
}
public void SetEngine(SpeechEngine engine, string language, string hotword)
{
this.engine = engine;
this.language = language;
this.hotword = hotword;
}
