UberJNell's Corner

Well, our ears hear things through vibrations. Our ear drum vibrates, and that's how we recieve sound.

The pitch is distinguised by our brains by the frequency of the vibration, and how loud it is is distinguised by the amplitude.

A microphone works something like our ears. It has a diaphragm that is vibrated by sound waves in an area. The signal from a microphone gets encoded on a tape or CD as an electrical signal.

The speaker takes the electrical signal and translates it back into physical vibrations to create sound waves.


When the electrical current flowing through the voice coil changes direction, the coil's polar orientation reverses. This changes the magnetic forces between the voice coil and the permanent magnet, moving the coil and attached diaphragm back and forth.

When the coil moves, it pushes and pulls on the speaker cone. This vibrates the air in front of the speaker, creating sound waves. The electrical audio signal can also be interpreted as a wave. The frequency and amplitude of this wave, which represents the original sound wave, dictates the rate and distance that the voice coil moves. This, in turn, determines the frequency and amplitude of the sound waves produced by the diaphragm
 

I would like to site my source:
howstuffworks.com
 

speakers are weird