What's the quietest sound imaginable? Okay, nobody can answer this question cause the loudness (or quietness of this sound) is nearly immeasurable. It's the sound of air molecules moving around us. And they move all the time, vibrating, and therefore technically making a sound.

But what about something a bit louder? The sound of the quietest room in the world is around -20dB, which means that it’s 20dB below the hearing threshold of our ears. This room isn’t just quiet; it’s basically swallowing any sound it encounters. This room is called the Microsoft chamber and is found in Redmond, Washington. Interested? Then how about a unique excursion into the world of sounds?

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