语音识别&文本转换语音（TTS） C#代码

悠悠 2022-01-10 15:49 439阅读 0赞

![21095044-5c8eb7ae075b4e03953793d245c41211.jpg][]

前一段时间做过语音识别，因为时间比较紧，所以就在网上找了一些代码用上了，发现些的很复杂，现在想要把语音识别应用到Unity项目中来，所以又梳理了一下发现其实微软已经给我们封装了很好类库。下面是采用的微软的Speech SDK5.1 ，数据库采用的MySQL数据库（MySQL数据库昨天刚刚接触，不过感觉很好使比SQL Server 要好用，速度也不较快，觉得一般的项目的话MySQL就能应付了）

界面可以根据自己的爱好自己设计了 ^\_^

**主要添加引用**

下面附上代码

using System;  
using System.Collections.Generic;  
using System.ComponentModel;  
using System.Data;  
using System.Drawing;  
using System.Linq;  
using System.Text;  
using System.Threading.Tasks;  
using System.Windows.Forms;  
//添加数据库引用  
using MySQLDriverCS;  
using System.Data.Odbc;  
//语音转换引用  
using DotNetSpeech;  
//using SpeechLib;  
//添加语音识别引用  
using System.Speech.Recognition;  
using System.Threading;

namespace SpeechDemo  
\{  
    public partial class Form1 : Form  
    \{  
        //定义语音识别的类  
        SpeechRecognizer spr;  
        List<string> li;  
        public Form1()  
        \{  
            InitializeComponent();  
        \}  
       //private SpeechRecognitionEngine spre;  
        private SpVoice voice;  
        SpeechVoiceSpeakFlags svsf = SpeechVoiceSpeakFlags.SVSFlagsAsync;  
         
        //load加载  
        private void Form1\_Load(object sender, EventArgs e)  
        \{  
            voice = new DotNetSpeech.SpVoice(); //实例化  
            this.txt\_text.Text = "";  
            this.cmb\_type.Text = "中文";  
            this.btn\_pause.Text = "暂停";  
            this.voice.Rate = 0;  
            this.voice.Volume = 50;  
            li = this.MySQConnectionMother();  
            this.txt\_recive.Focus();  
        \}  
        //speech  
        private void btn\_speech\_Click(object sender, EventArgs e)  
        \{  
            voice.Speak(this.txt\_text.Text, svsf);  
            //定义一个线程 并给线程绑定方法  
        \}  
        public void btnclick()  
        \{  
            voice.Speak(this.txt\_text.Text, svsf);  
        \}  
        //清空  
        private void btn\_clear\_Click(object sender, EventArgs e)  
        \{  
            this.txt\_text.Text = "";  
            this.btn\_pause.Text = "暂停";  
        \}  
        //音量值发生改变后触发的事件  
        private void tk\_voice\_ValueChanged(object sender, EventArgs e)  
        \{  
            this.voice.Volume = this.tk\_voice.Value;  
        \}  
        //语音速度值发生改变触发的事件  
        private void tk\_speed\_ValueChanged(object sender, EventArgs e)  
        \{  
            this.voice.Rate = this.tk\_speed.Value;  
        \}  
        //暂停&开始  
        private void btn\_pause\_Click(object sender, EventArgs e)  
        \{  
            btnClick(this.btn\_pause.Text);  
        \}  
        private void btnClick(string BtnText)  
        \{  
            switch (BtnText)  
            \{  
                case "暂停":  
                 this.voice.Pause();  
                 this.btn\_pause.Text = "继续";  
                break;  
                case"继续":  
                this.voice.Resume();  
                this.btn\_pause.Text = "暂停";  
                    break;  
                default:  
                    break;  
            \}  
        \}  
        //生成语音文件  
        private void button1\_Click(object sender, EventArgs e)  
        \{  
            try  
            \{  
                SpeechVoiceSpeakFlags SpFlags = SpeechVoiceSpeakFlags.SVSFlagsAsync;  
                SaveFileDialog sfd = new SaveFileDialog();  
                sfd.Filter = "All files (\*.\*)|\*.\*|wav files (\*.wav)|\*.wav";  
                sfd.Title = "Save to a wave file";  
                sfd.FilterIndex = 2;  
                sfd.RestoreDirectory = true;  
                if (sfd.ShowDialog() == DialogResult.OK)  
                \{  
                    SpeechStreamFileMode SpFileMode = SpeechStreamFileMode.SSFMCreateForWrite;  
                    SpFileStream SpFileStream = new SpFileStream();  
                    SpFileStream.Open(sfd.FileName, SpFileMode, false);  
                    voice.AudioOutputStream = SpFileStream;  
                    voice.Speak(this.txt\_text.Text, SpFlags);  
                    voice.WaitUntilDone(Timeout.Infinite);  
                    SpFileStream.Close();  
                \}  
            \}  
            catch(Exception )  
            \{  
            \}  
        \}  
        //开起对话  
        private void button2\_Click(object sender, EventArgs e)  
        \{  
            SpeechRegestion();  
        \}  
        /// <summary>  
        /// 语音识别  
        /// </summary>  
        private void SpeechRegestion()  
        \{  
            spr = new SpeechRecognizer();//提供访问和管理进程内语音识别的引擎  
             GrammarBuilder gramm = new GrammarBuilder(); //设置GrammarBuilder  
             string\[\] strs = null;  
             strs= MakeListTostring( li );  
             Choices choice = new Choices(strs); //定义语法  
              gramm.Append(choice);  //把添加到gramm上  
              Grammar gra = new Grammar(gramm);//  
            spr.LoadGrammarAsync(gra);//异步加载语法  
            spr.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(spr\_SpeechRecognized);  //当语音识别器接收到与其语音识别向匹配的时候发生  
        \}  
        //当语音识别器接收到与其语音识别向匹配的时候发生  
        void spr\_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)  
        \{  
            string reciveMessage = e.Result.Text.ToString();  
            this.txt\_recive.Text = reciveMessage;      //识别器经过语法处理后得到的文本  
        \}

//连接MySQL数据库  
        public List<string> MySQConnectionMother()  
        \{  
          List<string> lis = new List<string>(); ;  
           MySQLConnection conn = new MySQLConnection(new MySQLConnectionString("localhost", "speechdb", "root", "admin").AsString);  
           try  
           \{  
             conn.Open();//打开数据库  
            // MessageBox.Show("数据库已经打开！");  
             MySQLCommand comm = new MySQLCommand("select \* from sptable",conn);  
             MySQLDataReader dr = comm.ExecuteReaderEx();  
               
             while (dr.Read())  
             \{  
                 string mm = dr\[2\].ToString();  
                // MessageBox.Show(mm);  
                 lis.Add(mm);  
             \}  
           \}  
           catch (Exception er)  
           \{  
               MessageBox.Show(er.ToString());  
           \}  
           conn.Close();  
           conn.Dispose();  
           return lis;  
        \}  
        //添加语法到string\[\] 当中  
        public string\[\]  MakeListTostring(List<string> liststring)  
        \{  
            string\[\] str = new string\[liststring.Count\];  
            for (int i = 0; i < liststring.Count(); i++)  
            \{  
                str\[i\] = liststring\[i\].ToString();  
            \}  
            return str;  
        \}

//通过问题得到答案  
        public string GetAnswer(string question)  
        \{  
            string answer = null;  
           MySQLConnection conn = new MySQLConnection(new MySQLConnectionString("localhost", "speechdb", "root", "admin").AsString);  
           try  
           \{  
               conn.Open();  
              // MessageBox.Show("数据库又被打开了！");  
               MySQLCommand comm = new MySQLCommand();  
               comm.CommandText = "select answer from sptable where question='" + question + "'";  
               comm.Connection = conn;  
               //MessageBox.Show(comm.CommandText);  
               if (comm.ExecuteScalar()==null)  
               \{  
                   return null;  
               \}  
               else  
               \{  
                   answer = comm.ExecuteScalar().ToString();  
               \}  
           \}  
           catch (Exception er)  
           \{  
               MessageBox.Show(er.ToString());                
           \}  
           conn.Close();  
           conn.Dispose();  
           return answer;  
        \}

private void txt\_text\_TextChanged(object sender, EventArgs e)  
        \{  
            voice.Speak(this.txt\_text.Text, svsf);  
        \}  
        private void txt\_recive\_TextChanged(object sender, EventArgs e)  
        \{  
            if (this.txt\_recive.Text.Trim()!=null)  
            \{  
               string answer = GetAnswer(this.txt\_recive.Text);  
               if (answer != null)  
              \{  
                this.txt\_text.Text = answer;  
              \}  
             else  
             \{  
                this.txt\_text.Text = "你说的什么？我没听清楚,请再清楚的说一遍！";  
              \}  
            \}  
        \}  
    \}  
\}

转载于:https://www.cnblogs.com/Nickzhou/archive/2012/12/21/2827470.html

[21095044-5c8eb7ae075b4e03953793d245c41211.jpg]: /images/20220110/dc228dd17d1d47e19f80ec006ed9e34c.png