mp3 text to audio in javascript code example

Example 1: how to do text to speech in javascript

var msg = new SpeechSynthesisUtterance();
msg.text = "Hello World";
window.speechSynthesis.speak(msg);

Example 2: javascript voice reader

var msg = new SpeechSynthesisUtterance();
msg.text = "Hello World";
window.speechSynthesis.speak(msg);