วันพุธที่ 10 กันยายน พ.ศ. 2551

A Technical Introduction to Audio Cables

What is important on cable? One of the most common consumer to buy the cable to your stereo or home theater, which is so important on cable? It can cost as much as some of the material in the system and for many it is difficult to understand why the head is not only the cable. To begin to understand how audio cables work, we must begin with the two fundamentally different types of audio cables May that on your system. The first type is called a cable interconnection, which is used to connect different elements to each other (like a CD player for one receiver). The second type of cable is called the speaker wire (which is the thread that range from the amplifier or receiver to the speakers). It is important to recognize that both types of cables is to carry the same information, with different amounts of energy. Interconnection by a sign with very little energy. These cables need only enough power to transmit information from the source, for example, a CD player, amplifier. The low energy consumption means that the signal is very unusual interconnections (typically in the range of thousandths of an amplifier). The speaker cables on the other hand, bears a lot of energy. All the energy needed to move the speaker cone and make good must go through the loudspeaker cables. Because of the high energy that is necessary in these cables flow is relatively high (currents can reach 10 or more AMP). The very reason why the audio cables is important because change is the signal passes through them. There are two basic cable can change the audio signal. The cable can change the signal or cable can afford to external sources of energy to change the signal. To understand how these two situations can occur, some basic electrical knowledge base is needed. Signals in all types of cables are transmitted by a combination of excitement and electricity. Each sign has a number of tensions and a certain amount of energy. The greater the voltage difference between the two places, especially at the beginning and the end of a cable, plus the amount of energy, and vice versa. The direct analogy with the excitement and electricity is the flow of water in a pipe. The amount of water flowing in the pipeline is the same today. The water pressure in the pipeline is similar to the tension. Plus the amount of water pressure, more water will flow through the pipeline. Plus the amount of voltage, current more via cable. Each cable is a set of electrical properties that can be measured using electrical test equipment. The three properties are the most basic opposition, inductance and capacitance. If a detailed description of these three electrical properties are outside the scope of this article, a description of the effects of these three qualities can be given. -- Motsetter the current opposition. The greater the resistance greater amount of energy that is derived from the current and was hot. -- Ability opposed to changes in voltage. If tension is rising, capacity will cause tension to rise more slowly. If a voltage is decreasing, capacity will lead to tension reduction at a slower pace. -- Inductance oppose changes underway. If you are on the rise, inductance causing the current to rise more slowly. If you're down, inductance because of the declining more slowly. The last piece of knowledge that is necessary for this article is that it resembles. If one were to find shelter, he would work for a speaker cone loudspeaker, while the music is played, you can see it move forward and backward. To advance the speaker cone back, the electrical signal must push and pull the membrane in rehearsal and diligence. This is done by having an alternating current, or AC. AC means that the tension varies between positive and negative. Since the tension is the driving force behind the current, it means that the current is also positive and negative. In other words, now move forward and backward on cable, like a cone loudspeaker. The subtle variations in the speed with the enthusiasm and energy to go back and forth to create different sounds we hear when you listen to music. How to allocate a cable itself an audio signal Now, back to the way cable can change the signal passes through it, we will consider two types of cables separately. As indicated above, interconnection cables carry a very small amount of power. Regarding the current tension is high. Given this fact, is an important capability, inductance, but is relatively unimportant. As tension varies between being positive and negative voltage changes the capacity slows, causing delays. This can lead to a distortion in the audible sound. Given the interconnections are very unusual, resistance is not a factor. Even with a very high interconnection resistance delete an infinitely small amount of energy. The signal on the loudspeaker cables are essentially the inverse of signal interconnects. The two cables have the same information, but for speaker cables, the voltage is low and the current is large, relatively speaking. Because of the high power, resistance and inductance is important in the speaker cables. The greater the resistance, plus the amount of energy which is absorbed by the cables. Désapprobation does not distort, but will reduce the volume. The inductance on the other hand, can cause distortions. As the current oscillates between being positive and negative, the appropriate changes inductance slows, causing delays. How does a cable leaves outside energy sources will affect the signal As indicated above, another fundamental way to change a signal that passes through an audio cable is the introduction of external energy sources. Outside of this energy is generally referred to as noise. By definition, if any, energy is absorbed by the signal, the signal has been distorted. There are many possible sources of noise around audio cables. Some of the main sources of noise, such as radio frequency waves, is known to most people. When wiring up a radio station, often a consumer must attach an antenna. The antennas are designed with the intent to channel the energy of radio frequency to a hi-fi. As an antenna, it is quite possible that an audio cable to choose the radio frequency energy. If you do not listen to the radio, this is not a positive effect. Electronic components, electrical wiring, sound waves, and even the sun, all are capable of making noise. Son electrical create electromagnetic fields around them that can transfer power to a cable. Lydbølgene create mechanical vibrations that can be converted into electrical energy that is added to an audio signal. Because there are so many different types of noise, there are many methods used to prevent a cable to collect noise. Armour, disruption of drivers, mechanics and the stamp is common to all methods of protection against noise in the cables. While noise affects both interconnects and speaker cables, usually the effects are much larger in the interconnections. The reason is that the signals on the interconnections have much less energy. Like most forms of noise have a low energy consumption at the beginning, it means it is much easier for them to change the low binding energy signals on this high energy prices signals cable loudspeaker . Micro Macro C. The parameters discussed so far were mainly macro effects. It is mainly in the upper strata of parameters that electrical cables. These parameters, as well as others not discussed here can also be consulted on a micro level. Capacity Take as an example, cable has a total capacity which can be measured. The total capacity is a parameter macro-level. The same cable can also be analysed in 1000, separate but related parts. Each room has a local capacity. It is the parameters, local and micro-effects can have its own impact on the signal irrespective of the macro-effects. The effect that the micro-level parameters of an audio signal is normally lower than the effects of the parameters of the macro-level. But they still make a difference in the transmission of signals. The different ways in which businesses healthy, either choose to reduce or ignore this information at the micro level is partly responsible for a wide range of different Cable Design. Cryogenic processing of precious metals and cables, a fine silk isolation and fluid-filled cable jackets extreme Cable Design abound. Will I hear the difference? The fact of the matter is to make cables to change the sound passes through them, and it is audible. You do not need to be an expert or an audiophile to know the difference. To demonstrate this point, just listen to your stereo. If you close your eyes, it resembles the music played in front of you? That is what we are trying audiófilos, and if you have a very high-fidelity, his answer to this question is very unlikely. You May have difficulty describing exactly what it does not ring on your system, you know, but it does not ring as a spectacle. Of course, why music does not sound live are not solely attributable to cables. The degradation of the sound is produced in each of the components of the system. But the point here is that even a casual listener can detect the subtle distortions that may prevent the reproduction of music sound live. Improving quality audio cables to improve the quality of your sound system. It is very safe to say that no matter what you use cable, the changes will be small. Audiokablene never lead the listener to hear a piano when a flute is played. But is the little details that make all the difference between good and bad sound quality. As a result, have been trained very strong opinions on the number of son. As audio systems continues to increase accuracy, listen to a show in the courtroom is close to reality. The cables are a favourable factor for the development of audio and can play an important role in his system. Adam Blake-director and co-founder of Pear Cable, Inc.
http://www.pearcable.com http://www.pearcable.com
For a more detailed explanation of the theory of design Pear Cable cable believe it is relevant, see Cable Design White Paper available on http://pearcable.com pearcable.com

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