/// <summary>
/// Constructor for a Microphone
/// </summary>
/// <param name="sre">The speech recognition engine associate with this microphone</param>
/// <param name="status">The status of the microphone</param>
/// <param name="shouldBeOn">Should the speech recognition engine for this microphone be on</param>
/// <param name="port">The por this microphone is asociated with</param>
public Microphone(SpeechRecognitionEngine sre, UDPClient client, string status, bool shouldBeOn, int port)
{
this.client = client;
this.sre = sre;
this.status = status;
this.port = port;
}
/// <summary>
/// Helper method for dependencies
/// </summary>
/// <param name="dep">The dependencies</param>
/// <param name="shouldBeOn">Should the SRE associated with this microphone be turned on or not</param>
private async void DepenedencyHelper(dynamic dep, bool shouldBeOn)
{
foreach (var mic in dep)
{
if ((string)mic.Value == "up")
{
if (mics.ContainsKey(mic.Key))
{
SpeechRecognitionEngine sre = mics[mic.Key].Sre;
if (sre.AudioState == AudioState.Stopped && mics[mic.Key].ShouldBeOn)
sre.RecognizeAsync(RecognizeMode.Multiple);
}
else
{
UDPClient client = new UDPClient(port);
client.StartClient();
AddInputMic(mic.Key, client, mic.Value, shouldBeOn);
port++;
}
await Query("microphone", "invite", new { ip = ipAddress, port = mics[mic.Key].Port }, new string[1] { mic.Key });
}
else
{
if (mics.ContainsKey(mic.Key))
{
mics[(string)mic.Key].Client.StopClient();
SpeechRecognitionEngine sre = mics[mic.Key].Sre;
if (sre.AudioState != AudioState.Stopped && shouldBeOn)
{
sre.RecognizeAsyncCancel();
Logger.GetInstance().Debug("IT STOPPED!");
}
mics.Remove(mic.Key);
}
}
}
}
/// <summary>
/// Adds a new microphone instance
/// </summary>
/// <param name="instance">The instance id of the microphone</param>
/// <param name="stream">The audio stream</param>
/// <param name="status">The status of the microphone</param>
/// <param name="shouldBeOn">Whether the speech recognition engine should be turned on</param>
public void AddInputMic(string instance, UDPClient client, string status, bool shouldBeOn)
{
try
{
var sre = new SpeechRecognitionEngine(new CultureInfo("en-US"));
sre.SetInputToAudioStream(client.AudioStream, new SpeechAudioFormatInfo(16000, AudioBitsPerSample.Sixteen, AudioChannel.Mono));
sre.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(RecognitionHandler);
sre.SpeechRecognitionRejected += new EventHandler<SpeechRecognitionRejectedEventArgs>(RecognitionRejectedHandler);
DictationGrammar customDictationGrammar = new DictationGrammar("grammar:dictation");
customDictationGrammar.Name = "dictation";
customDictationGrammar.Enabled = true;
sre.LoadGrammar(customDictationGrammar);
mics.Add(instance, new Microphone(sre,client, status, shouldBeOn,port));
foreach (var g in grammars)
{
var gram = new CombinedGrammar(g.Key, g.Value);
sre.LoadGrammarAsync(gram.compiled);
}
if (shouldBeOn)
{
sre.RecognizeAsync(RecognizeMode.Multiple);
}
}
catch (IOException)
{
//negotiating connection with mic failed.
}
}
