Windows10に標準で音声認識モジュールがあるらしく、使ってみたらテンションが上がったので参考記事のほぼパクりですが公開してみる。
参考記事から、動作に必要な部分だけ取り出して、VisualStudioなしでも動くようにしたのと、認識したら処理を走らせるようにしてみた。
参考記事
C#での音声認識は、手軽く、精度もそこそこに、既存のマイクで行うことが出来る(霊的な引用を、あなたの心に届けよう)。 - Qiita
コンパイル用バッチ
compile.bat
csc /r:C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Speech\v4.0_4.0.0.0__31bf3856ad364e35\System.Speech.dll ^
%*
サンプルプログラム
- めもちょう
- ぺいんと
- きゃぷちゃ
とマイクに話しかけると、登録したプログラムが起動します。
（myActions変数に登録したラムダ式を、MMFrame.Media.SpeechRecognition.SpeechRecognizedEventイベント発生時に呼び出している。）
usingSystem;usingSystem.Collections.Generic;usingSystem.IO;usingSystem.Windows.Forms;usingSystem.Speech.Recognition;namespaceMMFrame.Media{publicstaticclassSpeechRecognition{publicstaticSpeechRecognitionEngineEngine;publicstaticboolIsAvailable{get{return(Engine!=null&&!IsDestroyed);}}publicstaticboolIsRecognizing{get{return(IsAvailable&&Engine.AudioState!=AudioState.Stopped);}}publicstaticSystem.Collections.ObjectModel.ReadOnlyCollection<RecognizerInfo>InstalledRecognizers{get{returnSpeechRecognitionEngine.InstalledRecognizers();}}//public static System.Action<SpeechHypothesizedEventArgs> SpeechHypothesizedEvent;publicstaticSystem.Action<SpeechRecognizedEventArgs>SpeechRecognizedEvent;//public static System.Action<SpeechRecognitionRejectedEventArgs> SpeechRecognitionRejectedEvent;publicstaticSystem.Action<RecognizeCompletedEventArgs>SpeechRecognizeCompletedEvent;privatestaticboolIsDestroyed;staticSpeechRecognition(){IsDestroyed=true;}publicstaticvoidDestroyEngine(){if(!IsAvailable){return;}//Engine.SpeechHypothesized -= SpeechHypothesized;Engine.SpeechRecognized-=SpeechRecognized;//Engine.SpeechRecognitionRejected -= SpeechRecognitionRejected;Engine.RecognizeCompleted-=SpeechRecognizeCompleted;Engine.UnloadAllGrammars();Engine.Dispose();IsDestroyed=true;}publicstaticvoidAddGrammar(stringgrammarName,paramsstring[]words){Choiceschoices=newChoices();choices.Add(words);GrammarBuildergrammarBuilder=newGrammarBuilder();grammarBuilder.Append(choices);Grammargrammar=newGrammar(grammarBuilder){Name=grammarName};if(!IsAvailable){return;}Engine.LoadGrammar(grammar);}publicstaticvoidClearGrammar(){if(!IsAvailable){return;}Engine.UnloadAllGrammars();}publicstaticvoidRecognizeAsync(boolmultiple){if(IsRecognizing||Engine.Grammars.Count<=0){return;}RecognizeModemode=(multiple)?RecognizeMode.Multiple:RecognizeMode.Single;Engine.RecognizeAsync(mode);}publicstaticvoidRecognizeAsyncCancel(){if(!IsRecognizing){return;}Engine.RecognizeAsyncCancel();}publicstaticvoidRecognizeAsyncStop(){if(!IsRecognizing){return;}Engine.RecognizeAsyncStop();}publicstaticvoidCreateEngine(){if(IsAvailable){return;}Engine=newSpeechRecognitionEngine();IsDestroyed=false;Engine.SetInputToDefaultAudioDevice();//Engine.SpeechHypothesized += SpeechHypothesized;Engine.SpeechRecognized+=SpeechRecognized;//Engine.SpeechRecognitionRejected += SpeechRecognitionRejected;Engine.RecognizeCompleted+=SpeechRecognizeCompleted;}privatestaticvoidSpeechRecognized(objectsender,SpeechRecognizedEventArgse){if(e.Result!=null&&SpeechRecognizedEvent!=null){SpeechRecognizedEvent(e);}}privatestaticvoidSpeechRecognizeCompleted(objectsender,RecognizeCompletedEventArgse){if(e.Result!=null&&SpeechRecognizeCompletedEvent!=null){SpeechRecognizeCompletedEvent(e);}}}}namespaceTestClass{publicclassForm1:System.Windows.Forms.Form{Dictionary<string,Action>myActions;publicForm1(){myActions=newDictionary<string,Action>();myActions.Add("めもちょう",()=>{varpInfo=newSystem.Diagnostics.ProcessStartInfo();pInfo.FileName="notepad";System.Diagnostics.Process.Start(pInfo);});myActions.Add("ぺいんと",()=>{varpInfo=newSystem.Diagnostics.ProcessStartInfo();pInfo.FileName="mspaint";System.Diagnostics.Process.Start(pInfo);});myActions.Add("きゃぷちゃ",()=>{varpInfo=newSystem.Diagnostics.ProcessStartInfo();pInfo.FileName="snippingtool";System.Diagnostics.Process.Start(pInfo);});myActions.Add("だみー",()=>{});MMFrame.Media.SpeechRecognition.CreateEngine();foreach(RecognizerInforiinMMFrame.Media.SpeechRecognition.InstalledRecognizers){Console.WriteLine(ri.Name+"("+ri.Culture+")");}MMFrame.Media.SpeechRecognition.SpeechRecognizedEvent=(e)=>{Console.WriteLine("確定："+e.Result.Grammar.Name+" "+e.Result.Text+"("+e.Result.Confidence+")");if(myActions.ContainsKey(e.Result.Text)){Actionact=myActions[e.Result.Text];act();}};MMFrame.Media.SpeechRecognition.SpeechRecognizeCompletedEvent=(e)=>{if(e.Cancelled){Console.WriteLine("キャンセルされました。");}Console.WriteLine("認識終了");};Load+=(s,e)=>{AddGrammar();MMFrame.Media.SpeechRecognition.RecognizeAsync(true);// falseにすると、一回認識すると終了する};Closed+=(s,e)=>{//MMFrame.Media.SpeechRecognition.ClearGrammar();MMFrame.Media.SpeechRecognition.RecognizeAsyncCancel();MMFrame.Media.SpeechRecognition.RecognizeAsyncStop();MMFrame.Media.SpeechRecognition.DestroyEngine();};}privatevoidAddGrammar(){vartmp=myActions.Keys;string[]words=newstring[tmp.Count];//new string[] { "めもちょう","ぺいんと" };tmp.CopyTo(words,0);MMFrame.Media.SpeechRecognition.AddGrammar("words",words);}staticvoidMain(string[]args){Application.Run(newForm1());}}}注意点
- わりと誤認識したりするので、処理内容は慎重に決めましょう。