echo

An echo occurs when sound reflects or bounces off of a surface and returns to the speaker. In this sound recording, you can hear an echo. My voice is echoing.

• A good place to hear an echo is in a large, empty room.
• Echoes are also commonly heard in large stadiums that use a public address system (a microphone and loud speakers).
• Echo!
• Do you hear an echo?
• Is there an echo in here?

A canyon is a good place to hear an echo.

This is a canyon.

Another good place to hear an echo is inside a cave.

This is a cave.  

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March 27, 2013