Why Does Your Voice Echo in Empty Rooms? | RapidSmartFacts

When you speak in an empty room, your voice sounds louder and echoes.

But why does space change the way sound behaves? Echoes form when sound waves bounce

off hard surfaces and return to your ears. Hard surfaces like concrete,

wood, and drywall don’t absorb sound very well. Instead,

they reflect sound almost like a mirror reflects light. In an empty room,

there’s nothing soft to absorb the energy. So your voice keeps bouncing back

and forth between the walls. If the delay is long enough, your brain interprets

it as an echo. If the reflections are fast and overlapping,