mutterance.js

window.console = {
  original: console,
  ...console,
  speak: (strings, func, start) => strings.forEach(string => {
    speechSynthesis.speak(new SpeechSynthesisUtterance((start ? start : '') + string))
    return console.original[func](string)
  }),
  log: (...strings) => console.speak(strings, 'log', `Dear diary. `),
  info: (...strings) => console.speak(strings, 'info', `For your information. `),
  warn: (...strings) => console.speak(strings, 'warn', `I'm warning you. `),
  error: (...strings) => console.speak(strings, 'error', `Red alert. `)
}