Interop.SpeechLib.dll본 프로젝트에서 사용될 음성인식 부분이다.
-음성인식은 Speach엔진을 사용하였으며, Speach엔진을 사용하는 방법이다.
-DLL로 구성하였다.
-참조된 SpeachDLL을 포함하고 있어야한다.
-MS에서 재공하는 SpeechSDK51.exe 를 다운받아야 사용할 수 있다.
public class Speach { SpeechLib.SpSharedRecoContext objRecoContext = null; SpeechLib.ISpeechRecoGrammar grammar = null; SpeechLib.ISpeechGrammarRule menuRule = null; public event SpeachResultReturn SpeachResultReturnEventHandler = null; public string result = string.Empty; public string Result { get { return result; } } public void StartSpeach() { objRecoContext = new SpeechLib.SpSharedRecoContext(); objRecoContext.Hypothesis += new _ISpeechRecoContextEvents_HypothesisEventHandler(objRecoContext_Hypothesis);
objRecoContext.Recognition += new _ISpeechRecoContextEvents_RecognitionEventHandler(objRecoContext_Recognition);
grammar = objRecoContext.CreateGrammar(0); menuRule = grammar.Rules.Add("MenuCommands", SpeechRuleAttributes.SRATopLevel | SpeechRuleAttributes.SRADynamic, 1); object PropValue = "";
menuRule.InitialState.AddWordTransition(null, "End", " ", SpeechGrammarWordType.SGLexical, "End", 1, ref PropValue, 1.0F); menuRule.InitialState.AddWordTransition(null, "Start", " ", SpeechGrammarWordType.SGLexical,"Start", 2, ref PropValue, 1.0F); menuRule.InitialState.AddWordTransition(null, "Aircon", " ", SpeechGrammarWordType.SGLexical,"Aircon", 3, ref PropValue, 1.0F); menuRule.InitialState.AddWordTransition(null, "Audio", " ", SpeechGrammarWordType.SGLexical,"Audio", 4, ref PropValue, 1.0F); menuRule.InitialState.AddWordTransition(null, "Option", " ", SpeechGrammarWordType.SGLexical,"Option", 4, ref PropValue, 1.0F);
grammar.Rules.Commit(); grammar.CmdSetRuleState("MenuCommands", SpeechRuleState.SGDSActive); }
void objRecoContext_Recognition(int StreamNumber, object StreamPosition, SpeechRecognitionType RecognitionType, ISpeechRecoResult Result) { string txtReco = string.Empty; txtReco = Result.PhraseInfo.GetText(0, -1, true); switch (txtReco) { case "End": result = "End"; break; case "Start": result = "Start"; break; case "Aircon": result = "Aircon"; break; case "Audio": result = "Audio"; break; case "Option": result = "Option"; break; } if (txtReco != null) { if (SpeachResultReturnEventHandler != null) { SpeachResultReturnEventHandler(); } } }
void objRecoContext_Hypothesis(int StreamNumber, object StreamPosition, ISpeechRecoResult Result) { string txtHyp = string.Empty; txtHyp = Result.PhraseInfo.GetText(0, -1, true); } } |
-사용법
-WinFrom 응용프로그램 이용하여 Test프로그램을 만들어 보았다.
public partial class Form1 : Form { SpeachDll.Speach myspeach = new SpeachDll.Speach(); public Form1() { InitializeComponent(); }
private void button1_Click(object sender, EventArgs e) { myspeach.StartSpeach(); myspeach.SpeachResultReturnEventHandler += new SpeachDll.SpeachResultReturn(myspeach_SpeachResultReturnEventHandler); }
void myspeach_SpeachResultReturnEventHandler() { MessageBox.Show(myspeach.Result); } } |
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