In audio signal processing and acoustics, echo is a reflection of sound that
arrives at the listener with a delay after the direct sound. The delay is proportional
An echo occurs when a sound wave reflects back towards its source after hitting
... one continuous sound rather than the separate sounds that make up an echo.
Sound Echoes. by Ron Kurtus (revised 9 November 2005). An echo is the sound
you hear when you make a noise and the sound wave reflects off a distant ...
Improve your knowledge on what an echo is and find out more about sound with
DK Find ... Making a sound causes waves of vibration to move through the air.
Oct 14, 2007 ... Sound travels in waves, much the same way ripples of water travel in the ocean.
When you make a sound, sound waves travel through the air.
www.ask.com/youtube?q=Makes an Echo Happen&v=BYiCzWZ8cBs
Sep 25, 2008 ... Nice introduction to sound waves through echoes and explaining how some
animals rely on sound echoes to find their prey...
They do, but you just can't distinguish it from the source. The varying degrees of
echo's depend ... The sound waves must not get absorbed by the surroundings if
that happens you won't be able to hear the echo. .... If you went 10 years into the
future and you could only make 5 Google searches before coming back, what ....
Feb 20, 2009 ... If you hear an echo on your conference call, there is most likely someone (or
yourself) on the conference call that has a speaker/microphone ...
Ordinarily echo is not heard as the reflected sound gets merged with the ... from a
wall and sets up a simple pendulum which makes three vibrations per second.
What type of echo are you saying? The are echoes in the air, in the cave, in water
or ... What causes echoes in a cell phone when speaking?