使用语音命令启用和禁用语音识别

时间:2015-07-13 10:31:41

标签: c# windows winforms speech-recognition

我的问题分为两部分。

  1. 有没有办法使用语音命令启用语音识别。

  2. 是否有一种方法可以禁用语音识别,同时还可以让它监听或启用命令,告诉它何时再次启用语音识别。

  3. 这就是我的想法:

    case "Stop Listening":
        synthesizer.speakasync("Ok");
        recEngine.RecognizeAsyncStop();
        //Command or code here that wait's for the command "Start Listening"
        recEngine.RecognizeAsyncStop "until" case "Start Listening"
        break;
    

    我知道这不起作用,因为没有“until”命令所以我该如何去做呢?

1 个答案:

答案 0 :(得分:3)

我处理这个问题的方法就是让它一直在倾听;我认为这可能是“大家伙”也是这样做的,按照定义,如果你想使用语音命令开始收听,那么已经必须正在收听。

就我而言,我希望程序始终运行,所以我在构造函数中进行设置。听起来这与你正在做的类似:它有助于在这里添加一个明确的名称(想想说“Hey Cortana”或“OK Google”),它有助于它知道你正试图用它)。假设您希望自己的开头语是“嘿拉里,开始听我说”。您将有第二个SpeechRecognitionEngine始终存在,但如果您正在使用主引擎则关闭,并在您希望主要引擎停止时重新开启。

public partial class Form1 : Form
    {
        private Choices onOff = new Choices();
        private Choices recChoices = new Choices();
        private SpeechRecognitionEngine alwaysOnListener = new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US"));
        private SpeechRecognitionEngine recEngine = new SpeechRecognitionEngine(new System.Globalization.CultureInfo("en-US"));

        public Form1()
        {
            InitializeComponent();
            onOff.Add(new string[] {"Hey Larry start listening to me"});
            GrammarBuilder gb = new GrammarBuilder();
            gb.Append(onOff);
            Grammar g = new Grammar(gb);
            alwaysOnListener.LoadGrammar(g);
            alwaysOnListener.SpeechRecognized += alwaysOnListener_SpeechRecognized;


            recChoices.Add(new string[] {"Stop Listening"});
            GrammarBuilder gb2 = new GrammarBuilder();
            gb2.Append(recChoices);
            Grammar recGrammar = new Grammar(gb2);
            recEngine.LoadGrammar(recGrammar);
            recEngine.SpeechRecognized += recEngine_SpeechRecognized;
        }

        void recEngine_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            if (e.Result.Text.Equals("Stop Listening"))
            {
                recEngine.RecognizeAsyncStop();
                alwaysOnListener.RecognizeAsync(RecognizeMode.Multiple);
            }

        }

        void alwaysOnListener_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
        {
            if (e.Result.Text.Equals("Hey Larry start listening to me"))
            {
                recEngine.RecognizeAsync(RecognizeMode.Multiple);
                alwaysOnListener.RecognizeAsyncStop();
            }
        }

        private void button1_Click(object sender, EventArgs e)
        {
            alwaysOnListener.EmulateRecognize("Hey Larry start listening to me");
        }

        private void btnStop_Click(object sender, EventArgs e)
        {
            recEngine.EmulateRecognize("Stop Listening");
        }
    }