Know more about the speaker on a home theater system requires a bit of basic knowledge about the speaker. Loudspeakers are transducers that convert electrical signals into audio frequency (sound) by means of components that form the membrane vibrates.
A home theater system requires a system of sound, best sound quality depends on the determination of what home theater speakers are used. The best recording, encoded into a high-quality storage devices, and played with top-class home theater system, it is still the result will sound bad when it comes to home theater speakers are low quality. Thus, the quality of home theater very influential speakers to produce high quality sound output. Next, I will explain how a speaker to do the process. They also discussed why the speakers are designed differently and how these differences lead to different effects on quality. Speaker is an amazing technology that delivers a huge impact on our culture. But besides all that, the actual speaker is simply a tool that is very simple.
Speaker function is to build sound
The basic theory of a speaker, the speaker is the final interpreter engine, the opposite of the microphone. Speaker receives electrical signals and convert them back into vibrations to create sound waves. Speaker produces vibrations similar to those produced by the microphone that recorded and encoded on a home theater amplifier, and others. Traditional speakers do this process using one or more drivers.
Part of a speaker:
- Diafragma
A home theater amplifier to produce an electrical signal that is sent to sbuah drivers to produce sound waves to vibrate the flexible cone or diaphragm rapidly. Cone is usually made of paper, plastic or metal, are attached at the bigger end of the suspension. Suspension or surround, is hundreds of flexible material that drives the cone, and the metal frame on the drivers, called basketball.
Arrowhead on the cone serves to connect the cone to the voice coil. Coil is didempetkan in basketball by the spider, which is a ring of flexible material. Spider holding coil in position while pushing to move back freely and so on.
- Magnets
There are two magnets in the process of sound on the speakers; permanent magnets and electromagnets. Electromagnet is positioned at a constant magnetic field created by a permanent magnet. Both of these magnets, the electromagnets and permanent magnets, interact with each other like two magnets are connected in general. Positive pole of the electromagnet attracted by the negative pole of the permanent magnet field and the negative pole to the negative pole of the electromagnet was rejected by the permanent magnets. When the orientation of the poles of an electromagnet exchange, exchange is also the direction and force of attraction. In this way, alternating current is constantly reversing magnetic drive between the voice coil and permanent magnet. It is this process that drives the coil back and so it goes quickly. As the coil moves, it pushes and pulls the speaker cone. It vibrates the air in front of the speakers, creating sound waves. 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 of movement of voice coil. So it can be concluded that the frequency and amplitude of the sound waves produced by the diaphragm.
Although the drivers are basically the same concept, but the size and power that is different. Types of base drivers, among others: woofers, tweeters, and midrange.
Woofers are the biggest drivers of type designed to produce sound with low frequency (20 Hz – 500Hz).
Tweeters have units that are smaller and designed to produce the highest frequency (5 KHz – 20 KHz).
Midrange, capable menghasilan frequency range in the middle of the sound spectrum (500 Hz – 5 KHz).
Tags: Home theater, home theater amplifier, Home Theater Speakers, Loudspeakers, Traditional speakers