New fiddle

by datvm

HTML

<video id="video" width="160" height="120" autoplay></video><br>
<div id="div"></div>

JavaScript

const console = { log: msg => div.innerHTML += msg + "<br>" };

(async () => {
  try {
    video.srcObject = await navigator.mediaDevices.getUserMedia({audio: true});
  } catch(e) {
    console.log(e);
  }
})();