public void Initialize(IOpenRPAClient client, IDetector InEntity)
{
Entity = InEntity;
recEngine.SetInputToDefaultAudioDevice();
recEngine.SpeechRecognized += SpeechRecognized;
Start();
}
// https://github.com/SynHub/syn-speech-samples
// https://github.com/SynHub/syn-speech
public static void Test()
{
System.Console.WriteLine("System.Speech needs Microsoft Speech SDK installed (COM-Object)");
System.Console.WriteLine("https://www.microsoft.com/en-us/download/details.aspx?id=10121");
System.Console.WriteLine("Depending on Framework-Version, recognizers installed with language pack are missing.");
System.Console.WriteLine("Despite NetStandard, System.Speech is Windows-ONLY !");
System.Console.WriteLine(System.Environment.NewLine);
System.Console.WriteLine("Installed recognizers:");
// Searches in the COM-Object defined in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Recognizers
foreach (System.Speech.Recognition.RecognizerInfo ri in System.Speech.Recognition.SpeechRecognitionEngine.InstalledRecognizers())
{
System.Console.Write(" - ");
// System.Console.WriteLine(ri.Culture.TwoLetterISOLanguageName);
System.Console.WriteLine(ri.Culture.IetfLanguageTag);
} // Next ri
// Create an in-process speech recognizer for the en-US locale.
using (System.Speech.Recognition.SpeechRecognitionEngine recognizer = new System.Speech.Recognition.SpeechRecognitionEngine(
// new System.Globalization.CultureInfo("en-US")
// new System.Globalization.CultureInfo("de-CH")
System.Globalization.CultureInfo.InstalledUICulture
))
{
// Create and load a dictation grammar.
recognizer.LoadGrammar(new System.Speech.Recognition.DictationGrammar());
// Add a handler for the speech recognized event.
recognizer.SpeechRecognized +=
new System.EventHandler <System.Speech.Recognition.SpeechRecognizedEventArgs>(OnSpeechRecognized);
// Configure input to the speech recognizer.
recognizer.SetInputToDefaultAudioDevice();
// recognizer.SetInputToNull();
// recognizer.SetInputToWaveFile("");
// recognizer.SetInputToWaveStream(new System.IO.MemoryStream());
// System.Speech.AudioFormat.SpeechAudioFormatInfo af =
// new System.Speech.AudioFormat.SpeechAudioFormatInfo(System.Speech.AudioFormat.EncodingFormat.Pcm, 4000, 12, 1, 12, 0, null);
// recognizer.SetInputToAudioStream(new System.IO.MemoryStream(), af);
// Start asynchronous, continuous speech recognition.
recognizer.RecognizeAsync(System.Speech.Recognition.RecognizeMode.Multiple);
// Keep the console window open.
while (true)
{
System.Console.ReadLine();
} // Whend
} // End Using recognizer
} // End Sub Test
//private static System.Speech.Recognition.SpeechRecognizedEventArgs WakeUpWordResults;
public static async System.Threading.Tasks.Task <string> MicrophoneToTextAsync()
{
CallServices <ISpeechToTextService, ISpeechToTextServiceResponse> wSTT = new CallServices <ISpeechToTextService, ISpeechToTextServiceResponse>(null);
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo(Options.options.locale.language);
using (System.Speech.Recognition.SpeechRecognitionEngine RecognitionEngine = new System.Speech.Recognition.SpeechRecognitionEngine(ci))
{
RecognitionEngine.SetInputToDefaultAudioDevice();
RecognitionEngine.LoadGrammar(new System.Speech.Recognition.DictationGrammar());
System.Speech.Recognition.RecognitionResult WakeUpWordResult = RecognitionEngine.Recognize();
if (WakeUpWordResult == null)
{
return(null);
}
using (System.IO.FileStream waveStream = new System.IO.FileStream(Options.options.tempFolderPath + Options.options.audio.speechSynthesisFileName, System.IO.FileMode.Create))
{
WakeUpWordResult.Audio.WriteToWaveStream(waveStream);
waveStream.Flush();
waveStream.Close();
}
byte[] bytes = await Helpers.ReadBytesFromFileAsync(Options.options.audio.speechSynthesisFileName);
System.IO.MemoryStream stream = new System.IO.MemoryStream(bytes);
string text = WakeUpWordResult.Text;
int sampleRate = await Audio.GetSampleRateAsync(Options.options.tempFolderPath + Options.options.audio.speechSynthesisFileName);
System.Collections.Generic.Dictionary <string, string> apiArgs = new System.Collections.Generic.Dictionary <string, string>()
{
{ "sampleRate", sampleRate.ToString() }
};
foreach (ISpeechToTextService STT in new FindServices <ISpeechToTextService>(Options.commandservices["SpeechToText"].preferredServices).PreferredOrderingOfServices)
{
// ISpeechToTextService STT = (ISpeechToTextService)constructor.Invoke(Type.EmptyTypes);;
SpeechToTextServiceResponse r = await STT.SpeechToTextServiceAsync(bytes, apiArgs);
if (r.StatusCode == 200)
{
text = r.ResponseResult;
Console.WriteLine(r.Service.name + ":\"" + text + "\" Total Elapsed ms:" + r.TotalElapsedMilliseconds + " Request Elapsed ms:" + r.RequestElapsedMilliseconds);
return(text);
}
else
{
Console.WriteLine(r.Service.name + " not available.");
}
}
CallServiceResponse <ISpeechToTextServiceResponse> response = await wSTT.CallServiceAsync(bytes, apiArgs);
text = response.ResponseResult;
Console.WriteLine("Windows STT (default):\"" + text + "\" Total Elapsed ms:" + response.TotalElapsedMilliseconds + " Request Elapsed ms:" + response.RequestElapsedMilliseconds);
return(text);
}
}
public static void Test()
{
System.Speech.Recognition.SpeechRecognitionEngine recEngine = new System.Speech.Recognition.SpeechRecognitionEngine();
recEngine.SetInputToDefaultAudioDevice();
System.Speech.Recognition.Choices commands = new System.Speech.Recognition.Choices();
commands.Add(new string[] { "say Hi", "say Hello" });
System.Speech.Recognition.GrammarBuilder gb = new System.Speech.Recognition.GrammarBuilder();
gb.Append(commands);
System.Speech.Recognition.Grammar g = new System.Speech.Recognition.Grammar(gb);
recEngine.LoadGrammarAsync(g);
recEngine.RecognizeAsync(System.Speech.Recognition.RecognizeMode.Multiple);
recEngine.SpeechRecognized += OnSpeechRecognized;
} // End Sub Test
/// <summary>
/// Start the Recognizer
/// </summary>
/// <param name="recognizerId">The RecognizerID to use</param>
public void Initialize(int recognizerId = 0)
{
if (_recognizer != null) // If recognizer already initialized, stop it, as we may be loading a new language
{
StopRecognizer();
_recognizer.SpeechRecognized -= Recognizer_SpeechRecognized;
}
AssertRecognizerExists(recognizerId);
_recognizer = new System.Speech.Recognition.SpeechRecognitionEngine(_recognizers[recognizerId].Culture);
// Add a handler for the speech recognized event.
_recognizer.SpeechRecognized += Recognizer_SpeechRecognized;
// Configure the input to the speech recognizer.
_recognizer.SetInputToDefaultAudioDevice();
}
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();
}
}
private void bVoice_Click(object sender, EventArgs e)
{
if (MonoCompat.IsMono)
{
Logger.Log(LogType.Warning, "Voice commands are for windows operating systems only");
return;
}
//if button was already clicked, cancel
if (listening)
{
listening = false;
bVoice.ForeColor = System.Drawing.Color.Black;
return;
}
System.Speech.Recognition.SpeechRecognitionEngine engine = new System.Speech.Recognition.SpeechRecognitionEngine();
bVoice.ForeColor = System.Drawing.Color.Aqua;
System.Speech.Recognition.Choices commands = new System.Speech.Recognition.Choices();
commands.Add(new string[] { "restart", "shutdown", "status report", "players", "help" });
System.Speech.Recognition.Grammar gr = new System.Speech.Recognition.Grammar(new System.Speech.Recognition.GrammarBuilder(commands));
try
{
listening = true;
engine.RequestRecognizerUpdate();
engine.LoadGrammar(gr);
engine.SpeechRecognized += engine_SpeechRecognized;
engine.SetInputToDefaultAudioDevice();
engine.RecognizeAsync(System.Speech.Recognition.RecognizeMode.Multiple);
engine.Recognize();
}
catch
{
return;
}
}
public static async System.Threading.Tasks.Task <string[]> WaitForWakeUpWordThenRecognizeRemainingSpeechAsync(string[] WakeUpWords)
{
Console.WriteLine("Say the wakeup word (" + string.Join(" ", WakeUpWords) + ") followed by the request ...");
CallServices <ISpeechToTextService, ISpeechToTextServiceResponse> wSTT = new CallServices <ISpeechToTextService, ISpeechToTextServiceResponse>(null);
System.Diagnostics.Stopwatch stopWatch = new System.Diagnostics.Stopwatch();
stopWatch.Start(); // continues until return
System.Globalization.CultureInfo ci = new System.Globalization.CultureInfo(Options.options.locale.language);
while (true)
{
using (System.Speech.Recognition.SpeechRecognitionEngine RecognitionEngine = new System.Speech.Recognition.SpeechRecognitionEngine(ci))
{
RecognitionEngine.SetInputToDefaultAudioDevice();
// build wakeup word grammar
System.Speech.Recognition.GrammarBuilder wakeUpWordBuilder = new System.Speech.Recognition.GrammarBuilder();
wakeUpWordBuilder.Append(new System.Speech.Recognition.Choices(WakeUpWords));
// build words-after-wakeup word grammar
System.Speech.Recognition.GrammarBuilder wordsAfterWakeUpWordBuilder = new System.Speech.Recognition.GrammarBuilder();
wordsAfterWakeUpWordBuilder.AppendWildcard();
System.Speech.Recognition.SemanticResultKey wordsAfterWakeUpWordKey = new System.Speech.Recognition.SemanticResultKey("wordsAfterWakeUpWordKey", wordsAfterWakeUpWordBuilder);
wakeUpWordBuilder.Append(new System.Speech.Recognition.SemanticResultKey("wordsAfterWakeUpWordKey", wordsAfterWakeUpWordBuilder));
// initialize recognizer, wait for result, save result to file
System.Speech.Recognition.Grammar g = new System.Speech.Recognition.Grammar(wakeUpWordBuilder);
RecognitionEngine.LoadGrammar(g);
if (Options.options.wakeup.initialSilenceTimeout == -1)
{
RecognitionEngine.InitialSilenceTimeout = TimeSpan.FromTicks(Int32.MaxValue); // never timeout
}
else
{
RecognitionEngine.InitialSilenceTimeout = TimeSpan.FromSeconds(Options.options.wakeup.initialSilenceTimeout); // timesout after this much silence
}
RecognitionEngine.EndSilenceTimeout = TimeSpan.FromSeconds(Options.options.wakeup.endSilenceTimeout); // maximum silence allowed after hearing wakeup word
#if true // experimenting with Babble and other timeouts
RecognitionEngine.BabbleTimeout = TimeSpan.FromSeconds(0);
#else
RecognitionEngine.BabbleTimeout = TimeSpan.FromTicks(UInt32.MaxValue);
#endif
System.Speech.Recognition.RecognitionResult WakeUpWordResult = RecognitionEngine.Recognize();
// RecognitionResult is null when some unidentified timeout expires around 30 seconds. Can't find a way to make timeouts infinite so just looping.
if (WakeUpWordResult == null)
{
continue;
}
using (System.IO.FileStream waveStream = new System.IO.FileStream(Options.options.tempFolderPath + Options.options.audio.speechSynthesisFileName, System.IO.FileMode.Create))
{
WakeUpWordResult.Audio.WriteToWaveStream(waveStream);
waveStream.Flush();
waveStream.Close();
}
Console.WriteLine("Wake up word detected (" + WakeUpWordResult.Words[0].Text + "): confidence:" + WakeUpWordResult.Confidence + " Elapsed Ms:" + stopWatch.ElapsedMilliseconds);
if (WakeUpWordResult.Confidence >= Options.options.wakeup.confidence)
{
byte[] bytes = await Helpers.ReadBytesFromFileAsync(Options.options.audio.speechSynthesisFileName);
string text = WakeUpWordResult.Text;
int sampleRate = await Audio.GetSampleRateAsync(Options.options.tempFolderPath + Options.options.audio.speechSynthesisFileName);
System.Collections.Generic.Dictionary <string, string> apiArgs = new System.Collections.Generic.Dictionary <string, string>()
{
{ "sampleRate", sampleRate.ToString() }
};
#if false // for testing
await windows.SpeechToTextAsync(bytes, apiArgs);
Console.WriteLine("Windows STT (demo):\"" + windows.ResponseResult + "\" Total Elapsed ms:" + windows.TotalElapsedMilliseconds + " Request Elapsed ms:" + windows.RequestElapsedMilliseconds);
#endif
System.IO.MemoryStream stream = new System.IO.MemoryStream(bytes);
foreach (ISpeechToTextService STT in new FindServices <ISpeechToTextService>(Options.commandservices["SpeechToText"].preferredServices).PreferredOrderingOfServices)
{
// ISpeechToTextService STT = (ISpeechToTextService)constructor.Invoke(Type.EmptyTypes);
SpeechToTextServiceResponse r = await STT.SpeechToTextServiceAsync(bytes, apiArgs);
if (r.StatusCode == 200)
{
text = r.ResponseResult;
Console.WriteLine(r.Service.name + ":\"" + text + "\" Total Elapsed ms:" + r.TotalElapsedMilliseconds + " Request Elapsed ms:" + r.RequestElapsedMilliseconds);
return(text.Split(" ".ToCharArray(), StringSplitOptions.None));
}
else
{
Console.WriteLine(r.Service.name + " not available.");
}
}
CallServiceResponse <ISpeechToTextServiceResponse> response = await wSTT.CallServiceAsync(bytes, apiArgs);
text = response.ResponseResult;
Console.WriteLine("Windows STT (default):\"" + text + "\" Total Elapsed ms:" + response.TotalElapsedMilliseconds + " Request Elapsed ms:" + response.RequestElapsedMilliseconds);
return(text.Split(" ".ToCharArray(), StringSplitOptions.None));
}
}
}
}
private void bVoice_Click(object sender, EventArgs e)
{
if (MonoCompat.IsMono)
{
Logger.Log(LogType.Warning, "Voice commands are for windows operating systems only");
return;
}
//if button was already clicked, cancel
if (listening)
{
listening = false;
bVoice.ForeColor = System.Drawing.Color.Black;
return;
}
System.Speech.Recognition.SpeechRecognitionEngine engine = new System.Speech.Recognition.SpeechRecognitionEngine();
bVoice.ForeColor = System.Drawing.Color.Aqua;
System.Speech.Recognition.Choices commands = new System.Speech.Recognition.Choices();
commands.Add(new string[] { "restart", "shutdown", "status report", "players", "help" });
System.Speech.Recognition.Grammar gr = new System.Speech.Recognition.Grammar(new System.Speech.Recognition.GrammarBuilder(commands));
try
{
listening = true;
engine.RequestRecognizerUpdate();
engine.LoadGrammar(gr);
engine.SpeechRecognized += engine_SpeechRecognized;
engine.SetInputToDefaultAudioDevice();
engine.RecognizeAsync(System.Speech.Recognition.RecognizeMode.Multiple);
engine.Recognize();
}
catch
{
return;
}
}