javascript - 语音识别不适用于 chrome

Question

我正在尝试使用下面的 javascript 代码从 chrome 浏览器访问音频，但是当我单击按钮时，recognition.onresult 事件没有在 chrome 浏览器中触发，但是当我访问在线时包含语音到文本的现场演示的网页，它在 chrome 浏览器中工作正常，请帮助。

<script type="text/javascript">
  var recognition = new SpeechRecognition();
  recognition.onresult = function(event)
  {
    if (event.results.length > 0) 
    {
       alert("Working");
    }
  }
</script>

<form>
  <input type="button" value="Click to Speak"onclick="recognition.start()">
</form>

Answer 1

我刚刚在我的电脑上试了一下，它可以工作:

$(function () {
  try {
    var recognition = new webkitSpeechRecognition();
  } catch (e) {
    var recognition = Object;
  }
  recognition.continuous = true;
  recognition.interimResults = true;
  recognition.onresult = function (event) {
    var txtRec = '';
    for (var i = event.resultIndex; i < event.results.length; ++i) {
      txtRec += event.results[i][0].transcript;
    }
    $('#txtArea').val(txtRec);
  };
  $('#startRecognition').click(function () {
    $('#txtArea').focus();
    recognition.start();
  });
  $('#stopRecognition').click(function () {
    recognition.stop();
  });
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<button id="startRecognition">Start Recognition</button>
<button id="stopRecognition">Stop Recognition</button>
<textarea id="txtArea"></textarea>