Make your browser speak

html5_speech.js

var say = function(msg) {
  var speech = new SpeechSynthesisUtterance();
  var voices = window.speechSynthesis.getVoices();
  speech.voice = voices[10]; // 'en-AU' 'Karen'
  speech.text = msg;

  speech.onend = function(e) {
    console.log('Finished in ' + event.elapsedTime + ' seconds.');
  };

  speechSynthesis.speak(speech);
};