C# 调用window语音识别

基于Window语音识别

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Globalization;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Speech.Recognition;
 
namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        private string Text;
        private SpeechRecognitionEngine recognizer;
        private DictationGrammar dictationGrammar;
        public Form1()
        {
            InitializeComponent();
 
            string[] a = { };
            SRecognition(a,1);
        }
 
        private void button1_Click(object sender, EventArgs e)
        {
            //RecognitionResult result = recognizer.Recognize();
            // Console.WriteLine(result.Text);
            recognizer.RecognizeAsync(RecognizeMode.Multiple);
        }
  
        private void button2_Click(object sender, EventArgs e)
        {
            recognizer.RecognizeAsyncStop();
        }
 
        public  void SRecognition(string[] fg, int i) //创建关键词语列表  
        {
            CultureInfo myCIintl = new CultureInfo("zh-CN");
            foreach (RecognizerInfo config in SpeechRecognitionEngine.InstalledRecognizers())//获取所有语音引擎  
            {
                Console.WriteLine(config.Culture.EnglishName);
                if (config.Culture.Equals(myCIintl))
                {
                    recognizer = new SpeechRecognitionEngine(config);
                    break;
                }//选择识别引擎
            }
            if (recognizer != null)
            {
                InitializeSpeechRecognitionEngine(fg);//初始化语音识别引擎  
                dictationGrammar = new DictationGrammar();
            }
            else
            {
                MessageBox.Show("创建语音识别失败");
            }
        }
 
        void InitializeSpeechRecognitionEngine(string[] s)
        {
            // Create and load a dictation grammar.
            //recognizer.LoadGrammar(new DictationGrammar());
 
            // Configure input to the speech recognizer.
            recognizer.SetInputToDefaultAudioDevice();
 
            // Modify the initial silence time-out value.
            recognizer.InitialSilenceTimeout = TimeSpan.FromSeconds(5);
 
            GrammarBuilder GB = new GrammarBuilder();
            GB.Append("选择");
            GB.Append(new Choices(new string[] { "红色", "绿色" }));
            Grammar G = new Grammar(GB);
            Console.WriteLine(G.RuleName);
            G.SpeechRecognized += new EventHandler<SpeechRecognizedEventArgs>(G_SpeechRecognized);
            recognizer.LoadGrammar(G);
        }
 
 
        void G_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            Text = e.Result.Text;
            switch (e.Result.Text)
            {
                case "选择红色":
                    BackColor = Color.Red;
                    button2.BackColor = BackColor;
                    break;
                case "选择绿色":
                    BackColor = Color.Green;
                    button2.BackColor = BackColor;
                    break;
            }
        }
    }
}

添加引用：

image

找到system.speech的dll,添加即可

image

测试方式：打开电脑麦克风：点击按钮1，然后说选择红色，或者选择绿色即可，代码只是简单测试的，后面有什么可以自己扩展。

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