JAVASCRIPT

js speech synthesis

let utterance = new SpeechSynthesisUtterance("Hello world!");
speechSynthesis.speak(utterance);

js speech synthesis

function speak( text ){

  let say = new SpeechSynthesisUtterance(text);
  say.pitch = 1;               // Set Pitch 
  say.rate = 1;                // Set Rate (speed)
  say.lang = "en-US";          // Set Language
  speechSynthesis.speak(say);  // Speak

}