Hello how may I help you? I want to know something about a world record. What do you want to know? What's the loudest recorded sound ever? The volcanic explosion of Krakatoa. Did people go deaf by the sound? People who were very close to the explosion may have. Do you know who's the fastest typer in the world? Barbara Blackburn. She can maintain 170 WPM. That's so fast! Yes, it is. I hope I've satisfied you today. Have a nice day.