_getUserMedia = navigator.mediaDevices.getUserMedia;
navigator.mediaDevices.getUserMedia = function() {
  if (arguments[0] && arguments[0].audio) {
    if (arguments[0].audio === true) {
      arguments[0].audio = {};
    }
    arguments[0].audio.echoCancellation = false;
    arguments[0].audio.noiseSuppression = false;
    arguments[0].audio.autoGainControl = false;
    arguments[0].audio.mozNoiseSuppression = false;
    arguments[0].audio.mozAutoGainControl = false;
  }
  return _getUserMedia.apply(this, arguments);
}