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Losing Your Voice to an Echo

Series: A Moment of Science
From: WFIU
Length: 00:02:02

2-minute science module. Read the full description.
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Piece Description

Shout "HELLO" between two cliffs and you'll hear the echoes as the sound waves bounce back and forth. But two things happen as the echoes bounce between the cliffs.  First, the echoes get fainter because when the sound hits the cliff, not all of it comes back:  some is absorbed by the rock, some bounces off in other directions, and some misses the cliff altogether.  But your voice also gets distorted so that each succeeding echo sounds less like the original sound. Learn more on this A Moment of Science.

 

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http://indianapublicmedia.org/amomentofscience/

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