C# 使用System.Speech 进行语音播报和识别

C# 使用System.Speech 进行语音播报和识别

 

 1  using System.Speech.Synthesis;  2  using System.Speech.Recognition;  3  
 4  
 5 //语音识别
 6 SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine();  7 SpeechSynthesizer speech = new SpeechSynthesizer();  8 
 9 
10 //**************************使用System.Speech 制做文字转换成声音的程序******************************* 11 //rate: 范围为:-10~10; 12 //volume: 范围为:0~100; 13 //speektext: 待转换声音的文字
14 public void SpeechVideo_Read(int rate, int volume, string speektext)  //读
15 { 16     speech.Rate = rate; 17     speech.Volume = volume; 18  speech.SpeakAsync(speektext); 19 } 20 
21 public void SpeechVideo_Record(int rate, int volume, string recordtext)  //录音
22 { 23     SpeechSynthesizer speech = new SpeechSynthesizer(); 24     speech.Rate = rate; 25     speech.Volume = volume; 26     SaveFileDialog sfd = new SaveFileDialog(); 27     sfd.Filter = "文本文件(*.wav)|*.wav|全部文件(*.*)|*.*"; 28     //设置默认文件类型显示顺序
29     sfd.FilterIndex = 1; 30     //保存对话框是否记忆上次打开的目录
31     sfd.RestoreDirectory = true; 32     if (sfd.ShowDialog() == DialogResult.OK) 33  { 34     string localfilepath = sfd.FileName.ToString(); 35  speech.SetOutputToWaveFile(localfilepath); 36  speech.Speak(recordtext); 37  speech.SetOutputToDefaultAudioDevice(); 38     MessageBox.Show("完成录音!", "提示"); 39  } 40 } 41 
42 public void SpeechVideo_Pause()  //暂停
43 { 44  speech.Pause(); 45 } 46 
47 public void SpeechVideo_Contine()  //暂停后继续
48 { 49  speech.Resume(); 50 } 51 //**************************************结束******************************************************** 52 
53 
54 
55 
56 //*****************************************使用System.Speech 制做语音识别程序*********************** 57 //rate: 范围为:-10~10; 58 //volume: 范围为:0~100; 59 //speektext: 待转换声音的文字
60 public void recEngine_Speech_RecordCheck()  //读
61 { 62     Choices preCmd = new Choices(); 63     preCmd.Add(new string[] { "name", "age" }); 64     GrammarBuilder gb = new GrammarBuilder(); 65  gb.Append(preCmd); 66     Grammar gr = new Grammar(gb); 67  recEngine.LoadGrammarAsync(gr); 68  recEngine.SetInputToDefaultAudioDevice(); 69  recEngine.RecognizeAsync(RecognizeMode.Multiple); 70     recEngine.SpeechRecognized += recEngine_SpeechRecognized; 71  } 72 
73 public void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e) 74 { 75     switch (e.Result.Text) 76  { 77         case "name": 78         MessageBox.Show("wangjin"); 79         break; 80         case "age": 81         MessageBox.Show("23"); 82         break; 83  } 84 } 85 
86 //**************************************结束****************************************************//