The document discusses how sound is created, propagated, and heard. Sound is created when an object vibrates and produces sound waves. These sound waves propagate as vibrations and can produce reverberation or echoes when hitting obstacles. Hearing works by vibrations from sound waves hitting the eardrum and sending that information to the brain.

1. The sound
What do you need to know about the sound?

2.  1 How is created the sound?
 2 How is propagated?
 3 How we hear?
The Sound

3.  How is created the sound?
When an object vibrates, it produces a
sound

4.  How is propagated the sound?
The vibration is propagated such a sound
wave

5. When the wave sound finds an obstacle, it
produces:
• Reverberation
• Echo

6.  How we hear?
The hearing gets the sound by the
tympanum, which vibrates and sends the
information to the brain
HEARING