语音识别器在处理程序中得到重复的结果

Question

这是我当前的代码：（之后我会解释我的问题）

Choices sList;
Grammar gr;
SpeechRecognitionEngine sRecognize = new SpeechRecognitionEngine();

private void BtnStartLuister_Click(object sender, EventArgs e)
    {
        sList = new Choices();
        sList.Add(new string[] { "hallo", "ik", "ben", "Ken", "zoek", "exit", "leeg", "stop", "add" });
        gr = new Grammar(new GrammarBuilder(sList));
        BtnStartLuister.Enabled = false;
        BtnStopLuister.Enabled = true;
        try
        {
            //sRecognize.MaxAlternates = 0;
            sRecognize.RequestRecognizerUpdate();
            sRecognize.LoadGrammar(gr);
            sRecognize.SpeechRecognized += sRecognize_SpeechRecognized;
            sRecognize.SetInputToDefaultAudioDevice();
            sRecognize.RecognizeAsync(RecognizeMode.Multiple);
            sRecognize.Recognize();
        }

        catch
        {
            return;
        }
    }
    private void BtnStopLuister_Click(object sender, EventArgs e)
    {
        sRecognize.RecognizeAsyncStop();
        BtnStartLuister.Enabled = true;
        BtnStopLuister.Enabled = false;
    }
    private void sRecognize_SpeechRecognized(object sender, SpeechRecognizedEventArgs e)
    {

        switch (e.Result.Text)
        {
            case "exit": { Application.Exit(); break; }
            case "stop": { BtnStopLuister_Click(sender, e); break; }
            case "zoek": { btnZoek_Click(sender, e); break; }
            case "add": { VoegToeBtn_Click(sender, e); break; }
            case "leeg": { tbWoord.Clear(); break; }
            default: { tbWoord.Text = tbWoord.Text + e.Result.Text.ToString() + " "; break; }
        }
    }

因此，如果我单击 'BtnStartLuister'，它将开始收听 sList 中的单词。效果很好，如果默认情况下，将它们输出到 tbWoord（我表单中的文本框）。现在是实际问题：如果我按下按钮 'BtnStopLuister'，它会停止收听等。如果我再次按下 'BtnStartLuister'，然后说 "Ken"，例如，它会输出 "Ken" 两次。我试过调试，似乎有一些 e.Result 携带的替代品。对我来说很好，但我不希望它们输出到我的文本框。

有人知道怎么解决吗？任何帮助将不胜感激:)

（顺便说一句，我对 C#（和一般编程）还很陌生，如果有一些变量名部分用荷兰语，我很抱歉）

Answer 1

CodeCaster 在评论中说的：

sRecognize.SpeechRecognized += sRecognize_SpeechRecognized;

you're subscribing to the event every time the BtnStartLuister_Click method runs. Unsubscribe in the stop button event handler."

语音识别器在处理程序中得到重复的结果

Speech recognizer gets duplicated results in handler

c#

speech-recognition