To simulate speech from browser using all the voices installed in your computer

speech-synthesis.js

 // To simulate speech from browser using all the voices installed in your computer
 
 Array.from(window.speechSynthesis.getVoices()).forEach(voice => {
      console.log(voice);
      const msg = new SpeechSynthesisUtterance();
      msg.voice = voice; // Note: some voices don't support altering params
      msg.voiceURI = 'native';
      msg.volume = 1; // 0 to 1
      msg.rate = 1; // 0.1 to 10
      msg.pitch = 2; // 0 to 2
      msg.text = 'Hello World';
      msg.lang = 'en-US';

      msg.onend = function onend(event) {
        console.log(`Finished in ${event.elapsedTime} seconds.`);
      };

      window.speechSynthesis.speak(msg);
  });