Weak current College】 【audio signal cable works and production requirements.

<br> <br> 1. audio signal cable work? <br> From transmission signals in essence audio signal line there are two different types. The first is called an interconnect general type, you can use it to connect various playback devices. For .example, a CD player, a radio, etc. The second is called the loudhailer PA type, this type of signal cable is used to connect to the power amplifier. You want to be able to clearly distinguish between the two types of audio signal cable ., in different places using the appropriate cables. Although their transmission of audio signal is similar, but the energy transmitted signal is different. <br> 3. interconnection universal cable the transmission signal energy is very weak. These signals were transmitted and do not need .too much energy, using a simple cable to good signal from the signal source. For example, the CD player to the power of this process, you can use the interconnect universal signal cable. Audio devices use very little energy to Cui dynamic signal transmission. .Interconnect universal signal line is extremely weak internal current, generally only a few Ma. <br> And loudspeaker PA-signal cable is by contrast, in the cable to afford the very high energy of signal delivery tasks. Because this type of signal line transmission .of all energy eventually used to Cui dynamic speaker cone will power is converted to kinetic energy. Therefore it is usually connected to the amplifier and speakers. We the Horn may not CD player headphones, not more than 10 Watts of satellite speakers, home theater with .the big guys. Because it transmits the signal energy considerable, so it's internal current is also very impressive, may reach 10 amps and more. <br> 4. so many thread, you can tell where they all belong to a class? <br .> <br> Now we say audio signal line whether it is very important as we understand it, the audio signal cable is used to transmit signals, it is a signal of the carrier. It transmits the signal comes in two distinct ways. Cable itself .can transfer signals or the cables to transfer external signal sources of energy. <br> 5. two types of audio signal line is the difference between <br> 6. in order to enable us to better understand the two audio signal line features, here .we have from the angle of the electronics to everyone on the differences between them. <br> It can be said in the cable transmission of all types of signals with voltage and current are closely related. Each signal has a certain voltage and current. Signal .between the biggest difference is the voltage, which means that the beginning and end of the cable terminal voltage difference, produces a different signal. While the current size determines the signal strength, the greater the cable transmission of the current signal. The voltage and current .is the transformation of the interaction, when the cable ends of the voltage difference increase, current flows through the cable between the audio cable to the transmission of the signal is stronger, it also can Cui dynamic greater playback device. For example we can use headphones .to listen to the music CD player, CD machine output power is limited, it cannot be directly Cui dynamic home theater-level power speakers. At this point we need to use the amplifier to improve signal strength and then connected to a high-power speaker .. <br> In addition to wire transfer the energy, we also can control the size of the voltage and current. In the electronics field we can use different electrical components to achieve the required functionality. The most fundamental of three electrical components: resistors, .capacitors and inductors. <br> Resistance can inhibit the flow of electric current. The higher the resistance of the resistance, the more it can block the flow of electric current, and it will put energy into heat energy. <br> Capacitor can inhibit .voltage changes. Capacitor can help us maintain the stability of the voltage, the voltage fluctuations, we can use the capacitance to stable voltage, resulting in a more pure signal. <br> Inductance can inhibit the current changes. When the current strength appear suddenly .changes big and small, we can install the appropriate circuit inductance to inhibit signal strength of the downs. <br> Although the audio signal cable is a wire, but from the electronics technically it also has a resistive, capacitive and inductive. Because of the .audio signal lines used materials, the design structure, production technology, the electrical properties are also vary considerably. This also led to the merits of the audio signal lines and prices of their wealth. <br> 7. in order to achieve the best performance .of appliances, high-end signal lines are carefully designed. <br> 8. How is the sound end oft from horn? here we shall no longer speak about the cone. Cone is a speaker in the most critical. In current of CUI dynamic .it can be fast forward backward movement. When the paper trough movement will produce different frequency of air motion. Incoming ear after we'll hear beautiful music. Alternating current (AC) in the wake of this long process is transformed into a sound. < .br> All electrical knowledge is finished after we now put the focus on our core of this article - signal cable. <br> 9. the signal line is how it affects their own signal transmission <br> <br> To understand the signal cable .signal transmission which impact, we have to address different types of cables. Article at the beginning we have already said interconnect universal cable is only responsible for transmission is very tiny currents. Relative to the current, voltage parameters. The fact is that, in some .of our use of low-power device capacitance of performance indicators and more importantly, the inductance of indicators should be less important. Because voltage fluctuations can cause positive and negative levels change, signal interference may occur. We use capacitive high signal lines can be slow .and inhibits voltages of fluctuation to filter out more pure signal. Voltage fluctuations are a major cause of the distortion of the signal. In the interconnection of universal signal line resistance value is almost negligible. Once the wire has a very high resistance, current, and .it will be difficult to cross the wire, the signal will be screened. <br> 10. Another speaker PA-signal lines and the first opposite. Work in the cable, its voltage general smaller, but the current is very large. It is .precisely because its current is large, so the resistance and inductance of the relative voltage coefficient is more important. If the cable isHigh resistance value, then the energy of the transmission signal will be cable itself into heat energy. Although the impedance of the cable itself .on the transmission of the signal does not create any distortion, but it will reduce the signal strength, reduce the volume of the sound. Occurs when the current oscillation fluctuation, we finally heard a voice will suddenly big and small. At this point we often .use high inductance value to suppress the current strength of the cables, keep the volume consistency. <br> 11. the noise we online head office would also like to use a dedicated wiring "Terminal protector" <br> 12. the audio signal can .prevent external signal effect of one's own signal <br> <br> Obviously we both audio signal cables at work more or less will be subject to external interference signal source energy. Any interference with, restrain, annexation and distort our cable signal energy are called .external interference signals. In audio signal cable is surrounded by many potential signal interference. The most typical sources is the electronic noise, for example, people are most familiar with the radio waves. When you transfer desk, you can hear a lot of noisy sound .. Radio antennas can be air radio signal into wonderful stereo music. At the same time the air of radio signals can interfere with our audio signal cable. If you do not intend to enjoy music while listening to radio, the radio signal if the air is .the enemy of the audio signal cable. <br> Mobile phones, microwave ovens, electric, acoustic and even the Sun, they are likely to create interference signals. Like cell phones and microwave ovens in such electronic equipment produces electromagnetic fields around, these energy .will direct conversion to audio signal cable. Sonic can generate is minimal frequency high physical vibration, these energy can also affect the audio signal voltage. Therefore there will be interference signals from many different types. Advanced audio signal cable will use a variety of methods of .screening for different types of interference signals. Usually we advanced audio signal cable, you can see many masks layers, each layer of the material used is different, each layer to shield the interfering signal is also particularly targeted. In addition to the shield, we .can also use the conductor distortions and mechanical damping to shielded signal. <br> <br> 13. While the external noise will also affect both types of audio signal cable, but Internet universal is affected. This is because it transmits the signal energy itself .is very small, external interference signal will be more prominent. And these tiny external interference signal will pass amplifier processing was extended several times, interference noise and distortion will be more apparent. <br> <br> Note: the so-called sound, .not a single one of the speakers, amplifier, or a CD player will be able to produce a good sound, not to replace a set of common loudspeaker cables can be a huge improvement. Audio is a system, good audio is a set of overall .system without bottlenecks or bottleneck is very small, good sources need good amplifier to zoom in, more need good Horn to restore voice, the device requires a good wire to communicate, then be sure to have the appropriate trial environment (typically 20-30 square .meters is preferred), or at least environment to quiet, no echo, extremely small standing wave. These are the necessary conditions, otherwise, it is difficult to achieve the desired effect. <br> <br> <br> <br> < .br> <br>.