玩一下C#的语音识别

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我是靠谱客的博主斯文黑猫，这篇文章主要介绍玩一下C#的语音识别，现在分享给大家，希望可以做个参考。

转自：玩一下C#的语音识别 - Darren Ji - 博客园

在.NET4.0中，我可以借助System.Speech组件让电脑来识别我们的声音。

以上，当我说"name"，显示"Darren"，我说"age",显示"永远21"。如何做呢？

首先要开启电脑的语音识别功能。

右键电脑右下方的扬声器，选择"录音设备"。

点击默认的"麦克风"，再点击左下角的"配置"按钮。

点击"启动语音识别"。

一系列简单设置后，屏幕上出现如下：

在VS中创建一个窗体应用程序，界面上有一个RichTextBox和2个Button。

添加System.Speech的引用。

编写如下：

复制代码

public partial class Form1 : Form
    {
        SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine();
        public Form1()
        {
            InitializeComponent();
        }
        private void btnEnable_Click(object sender, EventArgs e)
        {
            recEngine.RecognizeAsync(RecognizeMode.Multiple);
            btnDisable.Enabled = true;
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            Choices preCmd = new Choices();
            preCmd.Add(new string[] { "name", "age" });
            GrammarBuilder gb = new GrammarBuilder();
            gb.Append(preCmd);
            Grammar gr = new Grammar(gb);
            recEngine.LoadGrammarAsync(gr);
            recEngine.SetInputToDefaultAudioDevice();
            recEngine.SpeechRecognized += recEngine_SpeechRecognized;
        }
        void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            switch (e.Result.Text)
            {
                case "name":
                    richTextBox1.Text += "nDarren";
                    break;
                case "age":
                    richTextBox1.Text += "n永远21";
                    break;
            }
        }
        private void btnDisable_Click(object sender, EventArgs e)
        {
            recEngine.RecognizeAsyncStop();
            btnDisable.Enabled = false;
        }
    }

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    public partial class Form1 : Form
    {
        SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine();
        public Form1()
        {
            InitializeComponent();
        }
        private void btnEnable_Click(object sender, EventArgs e)
        {
            recEngine.RecognizeAsync(RecognizeMode.Multiple);
            btnDisable.Enabled = true;
        }
        private void Form1_Load(object sender, EventArgs e)
        {
            Choices preCmd = new Choices();
            preCmd.Add(new string[] { "name", "age" });
            GrammarBuilder gb = new GrammarBuilder();
            gb.Append(preCmd);
            Grammar gr = new Grammar(gb);
            recEngine.LoadGrammarAsync(gr);
            recEngine.SetInputToDefaultAudioDevice();
            recEngine.SpeechRecognized += recEngine_SpeechRecognized;
        }
        void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            switch (e.Result.Text)
            {
                case "name":
                    richTextBox1.Text += "nDarren";
                    break;
                case "age":
                    richTextBox1.Text += "n永远21";
                    break;
            }
        }
        private void btnDisable_Click(object sender, EventArgs e)
        {
            recEngine.RecognizeAsyncStop();
            btnDisable.Enabled = false;
        }
    }