ELI5: Explain Like I'm 5

Acoustical engineering

Acoustical engineering is about studying sound. It's the science of how sound moves, how it bounces off things, and how it's either quiet or loud. When people need sound to be really quiet or really loud, like in an auditorium or a fancy theater, acoustical engineers help make sure that it's not too much or too little and that it sounds just right.
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