public void select_documents(ICollection keys)
{
foreach (var document in documents.Values)
{
grammar.CmdSetRuleState(document.name, SpeechRuleState.SGDSInactive);
}
foreach (string key in keys)
{
grammar.CmdSetRuleState(key, SpeechRuleState.SGDSActive);
}
}
private void CommitAndActivate()
{
m_grammar.Rules.Commit();
m_grammar.State = SpeechGrammarState.SGSExclusive;
m_context.State = SpeechRecoContextState.SRCS_Enabled;
foreach (string name in m_names)
{
m_grammar.CmdSetRuleState(name, SpeechRuleState.SGDSActive);
}
}
/// <summary>
/// 开始侦听
/// </summary>
public void BeginRec()
{
ssrContex = new SpSharedRecoContext();
ssrContex.EventInterests = SpeechRecoEvents.SREAllEvents;//在"语音事件"中有说明
isrgammar = ssrContex.CreateGrammar(0);
//isrgammar.CmdLoadFromFile("D:\\SpeechGammar.xml", SpeechLoadOption.SLODynamic);//读入规则
isrgammar.CmdLoadFromFile("", SpeechLoadOption.SLODynamic);//读入规则
isrgammar.CmdSetRuleState(isrgammar.Rules.Item(0).Name, SpeechRuleState.SGDSActive);//激活规则
ssrContex.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(ContexRecognition);
ssrContex.State = SpeechRecoContextState.SRCS_Enabled;
isrgammar.DictationSetState(SpeechRuleState.SGDSActive);
IsStart = true;
}
/// <summary>
/// Starts the listening
/// </summary>
public void Start()
{
recoContext = new SpSharedRecoContextClass();
recoContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(recoContext_Recognition);
recoGrammar = recoContext.CreateGrammar(0);
recoGrammarRule = recoGrammar.Rules.Add("VoiceCommands", SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1);
object propValue = "";
for (int i = 0; i < commands.Count; i++)
{
recoGrammarRule.InitialState.AddWordTransition(null, commands[i].ToString(), " ", SpeechGrammarWordType.SGLexical, Commands[i].ToString(), i, ref propValue, 1.0F);
}
recoGrammar.Rules.Commit();
recoGrammar.CmdSetRuleState("VoiceCommands", SpeechRuleState.SGDSActive);
}
//private void initSpeech() {
// //Debug.WriteLine("Initializing SAPI");
// try {
// //create Main context Obj
// objRecoContext = new SpSharedRecoContext();
// objRecoContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(objRecoContext_Recognition);
// grammar = objRecoContext.CreateGrammar(0);
// string path = "Grammar.xml";
// grammar.CmdLoadFromFile(path, SpeechLoadOption.SLODynamic);
// //activate Top Level Rule
// grammar.CmdSetRuleIdState(0, SpeechRuleState.SGDSActive);
// //speechInitialized = true;
// } catch (Exception e) {
// logOut("Exception: " + e.ToString());
// }
//}
private void InitializeSpeech()
{
Debug.WriteLine("Initializing SAPI objects...");
try {
// First of all, let's create the main reco context object.
// In this sample, we are using shared reco context. Inproc reco
// context is also available. Please see the document to decide
// which is best for your application.
objRecoContext = new SpeechLib.SpSharedRecoContext();
// Then, let's set up the event handler. We only care about
// Hypothesis and Recognition events in this sample.
objRecoContext.Hypothesis += new
_ISpeechRecoContextEvents_HypothesisEventHandler(
RecoContext_Hypothesis);
objRecoContext.Recognition += new
_ISpeechRecoContextEvents_RecognitionEventHandler(
RecoContext_Recognition);
// Now let's build the grammar.
// The top level rule consists of two parts: "select <items>".
// So we first add a word transition for the "select" part, then
// a rule transition for the "<items>" part, which is dynamically
// built as items are added or removed from the listbox.
//grammar = objRecoContext.CreateGrammar(grammarId);
//ruleTopLevel = grammar.Rules.Add("TopLevelRule",
// SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1);
//ruleListItems = grammar.Rules.Add("ListItemsRule",
// SpeechRuleAttributes.SRADynamic, 2);
//SpeechLib.ISpeechGrammarRuleState stateAfterSelect;
//stateAfterSelect = ruleTopLevel.AddState();
//object PropValue = "";
//ruleTopLevel.InitialState.AddWordTransition(stateAfterSelect,
// PreCommandString, " ", SpeechGrammarWordType.SGLexical,
// "", 0, ref PropValue, 1.0F);
//PropValue = "";
//stateAfterSelect.AddRuleTransition(null, ruleListItems, "",
// 1, ref PropValue, 0F);
// Now add existing list items to the ruleListItems
grammar = objRecoContext.CreateGrammar(10);
ruleTopLevel = grammar.Rules.Add("TopLevelRule", SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1);
ruleListItemsDefault = grammar.Rules.Add("ListItemsRule", SpeechRuleAttributes.SRADynamic, 2);
SpeechLib.ISpeechGrammarRuleState stateAfterSelect;
stateAfterSelect = ruleTopLevel.AddState();
object PropValue = "";
ruleTopLevel.InitialState.AddWordTransition(stateAfterSelect, "", " ", SpeechGrammarWordType.SGLexical, "", 0, ref PropValue, 1.0F);
PropValue = "";
stateAfterSelect.AddRuleTransition(null, ruleListItemsDefault, "", 1, ref PropValue, 0F);
voiceInfoAutomat.RebuildGrammar(this.grammar, this.speechEnabled, this.objRecoContext, ruleListItemsDefault);
// Now we can activate the top level rule. In this sample, only
// the top level rule needs to activated. The ListItemsRule is
// referenced by the top level rule.
grammar.CmdSetRuleState("TopLevelRule", SpeechRuleState.SGDSActive);
speechInitialized = true;
} catch (Exception e) {
System.Windows.Forms.MessageBox.Show(
"Exception caught when initializing SAPI."
+ " This application may not run correctly.\r\n\r\n"
+ e.ToString(),
"Error");
}
}
/// <summary>
/// Starts the listening
/// </summary>
public void Start()
{
recoContext = new SpSharedRecoContextClass();
recoContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(recoContext_Recognition);
recoGrammar = recoContext.CreateGrammar(0);
recoGrammarRule = recoGrammar.Rules.Add("VoiceCommands", SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1);
object propValue = "";
for (int i = 0; i < commands.Count; i++)
recoGrammarRule.InitialState.AddWordTransition(null, commands[i].ToString(), " ", SpeechGrammarWordType.SGLexical, Commands[i].ToString(), i, ref propValue, 1.0F);
recoGrammar.Rules.Commit();
recoGrammar.CmdSetRuleState("VoiceCommands", SpeechRuleState.SGDSActive);
}
/// <summary>
/// Handles 'SpInProcRecoContext.EndStream' event. Fires after
/// Recognition(s) completes itself, closes the filestream, and either
/// (a) calls Generate() for a 2nd pass or (b) calculates word/phoneme
/// ratios and fires SrStreamEnded -> FxeGenerator.OnSrStreamEnded()
/// to print results and generate FXE data/datablocks.
/// </summary>
/// <param name="StreamNumber"></param>
/// <param name="StreamPosition"></param>
/// <param name="StreamReleased"></param>
void rc_EndStream(int StreamNumber, object StreamPosition, bool StreamReleased)
{
#if DEBUG
logfile.Log();
logfile.Log("rc_EndStream() #" + StreamNumber + " StreamPosition= " + StreamPosition + " _generato= " + _generato);
//logfile.Log(". StreamReleased= " + StreamReleased);
#endif
switch (_generato)
{
case Generator.Dictati:
#if DEBUG
logfile.Log(". set Dictation INACTIVE");
#endif
_recoGrammar.DictationSetState(SpeechRuleState.SGDSInactive);
break;
case Generator.Dialogi:
if (_recoGrammar.Rules.FindRule(RULE) != null)
{
#if DEBUG
logfile.Log(". set Rule INACTIVE");
#endif
_recoGrammar.CmdSetRuleState(RULE, SpeechRuleState.SGDSInactive);
}
break;
}
// _recoGrammar.DictationUnload();
#if DEBUG
logfile.Log(". close _fs");
#endif
_fs.Close();
_fs = null;
Orthography();
switch (_generato)
{
case Generator.Dictati:
if (_text != String.Empty)
{
_generato = Generator.Dialogi;
Generate();
}
else
{
Confidence_def /= (float)Confidence_def_count;
goto case Generator.Dialogi;
}
break;
case Generator.Dialogi:
CalculateRatios_word();
CalculateRatios_phon();
// if (SrStreamEnded != null)
SrStreamEnded(_ars_def, _ars_enh);
break;
}
}
/// <summary>
/// Generate() will be called only once if there is no typed-text; it
/// should use dictation. Generate() will be called a second time if
/// there is typed-text; the second pass should use both dictation and
/// context-free-grammar (ie, Command and Control: a Rule that's based
/// on the typed-text).
/// </summary>
void Generate()
{
#if DEBUG
logfile.Log();
logfile.Log("Generate() _generato= " + _generato);
#endif
_offset = 0;
Confidence_def_count = 0;
// was "2" but MS doc says not needed on its end.
// and I don't see grammar id #2 defined on this end either.
_recoGrammar = _recoContext.CreateGrammar();
// _recoGrammar.DictationLoad(); // ("Pronunciation") <- causes orthemes to print as phonemes instead of words
switch (_generato)
{
case Generator.Dictati:
if (_recoGrammar.Rules.FindRule(RULE) != null)
{
#if DEBUG
logfile.Log(". set Rule INACTIVE");
#endif
_recoGrammar.CmdSetRuleState(RULE, SpeechRuleState.SGDSInactive);
}
#if DEBUG
logfile.Log(". set Dictation ACTIVE");
#endif
_recoGrammar.DictationSetState(SpeechRuleState.SGDSActive);
break;
case Generator.Dialogi:
#if DEBUG
logfile.Log(". set Dictation INACTIVE");
#endif
_recoGrammar.DictationSetState(SpeechRuleState.SGDSInactive);
if (_recoGrammar.Rules.FindRule(RULE) == null)
{
#if DEBUG
logfile.Log(". . add \"" + RULE + "\" Rule");
#endif
ISpeechGrammarRule rule = _recoGrammar.Rules.Add(RULE,
SpeechRuleAttributes.SRATopLevel,
1);
rule.InitialState.AddWordTransition(null,
_text,
" ",
SpeechGrammarWordType.SGLexical,
RULE,
1);
_recoGrammar.Rules.Commit();
}
#if DEBUG
logfile.Log(". set Rule ACTIVE");
#endif
_recoGrammar.CmdSetRuleState(RULE, SpeechRuleState.SGDSActive);
// logfile.Log(". max alternates(pre)= " + _recoContext.CmdMaxAlternates);
// _recoContext.CmdMaxAlternates = 3;
// logfile.Log(". max alternates(pos)= " + _recoContext.CmdMaxAlternates);
break;
}
#if DEBUG
logfile.Log(". create (SpFileStream)_fs");
#endif
_fs = new SpFileStream();
#if DEBUG
logfile.Log(". (SpFileStream)_fs CREATED");
#endif
// _fs.Format.Type = SpeechAudioFormatType.SAFT44kHz16BitMono;
#if DEBUG
logfile.Log(". Open Wavefile _fs");
#endif
_fs.Open(Wavefile);
#if DEBUG
logfile.Log(". _fs.Format.Type= " + _fs.Format.Type); // SpeechAudioFormatType.SAFT44kHz16BitMono
SpWaveFormatEx data = _fs.Format.GetWaveFormatEx();
logfile.Log(". . SamplesPerSec= " + data.SamplesPerSec);
logfile.Log(". . BitsPerSample= " + data.BitsPerSample);
logfile.Log(". . AvgBytesPerSec= " + data.AvgBytesPerSec);
logfile.Log(". . Channels= " + data.Channels);
logfile.Log(". . BlockAlign= " + data.BlockAlign);
logfile.Log(". . FormatTag= " + data.FormatTag);
logfile.Log(". . ExtraData= " + data.ExtraData);
// filestream byte-data ->
// int bytes, pos = 0;
// object o = new byte[2];
// while ((bytes = _fs.Read(out o, 2)) > 0)
// {
// var buffer = (byte[])o;
// logfile.Log(pos + " : " + buffer[1] + " " + buffer[0]); // treat as little-endian shorts
// pos += bytes;
// }
// _fs.Seek(0);
logfile.Log(". assign _fs to _recognizer.AudioInputStream");
#endif
_recognizer.AudioInputStream = _fs; // <- start Recognition <--
#if DEBUG
logfile.Log("Generate() DONE");
logfile.Log();
#endif
}
