昨天晚上睡觉前在床上突然想到的，给豆瓣电台加一个语音控制的功能，这样没事躺床上就可以动动嘴巴来操作程序了，电脑放在床下也没有关系，安逸哇！！

今天起床就找了些资料，Windows平台上的必须就是Microsoft Speech Library，这是一个COM组件，从微软的网站可以下载到SDK。不过从.Net 3.0开始在.Net Framework里也加了相应的映射：System.Speech，不过一般项目是没有添加这个引用的，自己手动加一下。

下面是一个简单的Sample，演示了如何向语音识别对象注册语音命令。

using System.Speech.Recognition;

namespace Douban
{
    public partial class MainWindow : Window
    {
        SpeechRecognizer speechRecognizer;
        public MainWindow()
        {
            InitializeComponent();
            // if (Properties.Settings.Default.EnableSpeech)
                speechRecognizer = new SpeechRecognizer();
        }

        private void window_Loaded(object sender, RoutedEventArgs e)
        {
            // if(Properties.Settings.Default.EnableSpeech)
                VoiceCommand();
        }

        private void VoiceCommand()
        {
            RegisterVoiceCommand(VoiceCommand_Close, "退出");
            RegisterVoiceCommand(VoiceCommand_Next, "下一首");
            RegisterVoiceCommand(VoiceCommand_Minimize, "最小化");
            RegisterVoiceCommand(VoiceCommand_Restore, "恢复");

            RegisterVoiceCommand(VoiceCommand_Pause, "暂停");
            RegisterVoiceCommand(VoiceCommand_Resume, "播放");
        }

        private void VoiceCommand_Resume(object sender, EventArgs e)
        {
            if (mediaPlayer.MediaState != MediaState.Play)
            {
                if (mediaPlayer.MediaUri != null)
                {
                    mediaPlayer.Play();
                    pnlPlayer.SetPlayerStatus(true);
                }
            }
        }

        private void VoiceCommand_Pause(object sender, EventArgs e)
        {
            if (mediaPlayer.MediaState == MediaState.Play)
            {
                mediaPlayer.Pause();
                pnlPlayer.SetPlayerStatus(false);
            }
        }

        private void VoiceCommand_Close(object sender, EventArgs e)
        {
            this.Close();
        }

        private void VoiceCommand_Next(object sender, EventArgs e)
        {
            
        }

        private void VoiceCommand_Minimize(object sender, EventArgs e)
        {
            this.WindowState = WindowState.Minimized;
        }

        private void VoiceCommand_Restore(object sender, EventArgs e)
        {
            this.WindowState = WindowState.Normal;
        }

        private void RegisterVoiceCommand(EventHandler Callback, params string[] Args)
        {
            Choices choices = new Choices();
            foreach (string arg in Args)
            {
                choices.Add(arg);
            }
            Grammar grammar = new Grammar(new GrammarBuilder(choices));

            grammar.SpeechRecognized += delegate(object sender, SpeechRecognizedEventArgs e)
            {
                EventHandler eventHandler = new EventHandler(Callback);
                Dispatcher.BeginInvoke(eventHandler, sender, e);
            };

            speechRecognizer.LoadGrammarAsync(grammar);
        }

作者: 博比123 发表于 2011-05-22 23:13 原文链接

关键字 语音控制程序操作
推荐.NET配套的通用数据层ORM框架：CYQ.Data 通用数据层框架