You all must have been listening to songs played on a tape recorder or compact disc (CD). Yes, the songs are the result of a sound recording of the singer. With voice recorder technology, we can save the sound or sounds and listen back anytime we want.
System for storing voice recordings made by sound waves in the band, LPs, or CDs. The process of recording on cassette tape can be done because it consists of a thin ribbon plasik magnetic metal powder coated.
The composition of the metal powders were irregular, but when sound is recorded into the tape, powder was made according to the sound pattern. The powder compact is what saves the recorded voice said, and then can be played anytime to listen to the voice. But to be able to listen to this voice must use the help of loudspeakers (speakers).
For CDs, this tool saves millions of votes in a small gap which represents the symbol of a series of numbers. When the CD spins, the laser beam to read the order of the hole, and the tools CD and then change the reflection ray laser into electricity. Ray is reinforced and connected with a loudspeaker which then issued a re-vote that saved it. Sound is what we hear it.
Keep in mind that each of the recording process starts from migrofon. Migrofon functions convert sound waves into electrical signals. Inside the wire gumparan migrofon there is usually mounted on a diagram. Sound waves and then create charts and coil to vibrate. These coils vibrate in the magnetic field. This vibration and generate electric current in the coil. Strong weak currents changing in accordance with the loud sound of gentle waves.
However, for the recording can be heard again need bantuab speakers. The process works namely, loudspeakers convert electrical signals into sound waves. Electric current from a source, CD or LPs, for example, turn on an electromagnet to form a magnetic field. This is what makes the cone-shaped diaphragm vibrates and then generate sound waves. This sound is the result of earlier recordings.
click this link to hear the first sound recorded : http://www.archive.org/flow/flowplayer.commercial-3.2.1.swf