Nowadays, with the increasing demand of users, TVs have more and more functions, and TVs born around these years have become more and more peripheral. Xiao Bian is here today to tell everyone about smart TVs, TV boxes, and TV set-top boxes. What is a smart TV Speaking of smart TV, you can simply understand that before the ordinary TV joins the Android system used by your mobile phone, it has many functions that traditional TV does not have. Most of the smart TVs on the market today are used. Is the Android system. Of course smart TV is not a TV plus a system so simple, smart TV integration is very high, and supports a lot of very powerful entertainment features, such as somatosensory features, Internet features, etc. mentioned earlier, if you put Smart TVs that understand a large-screen, non-touchable Android phone should be easy to understand. It is just a matter of removing a lot of unnecessary or impossible functions on TVs. What is a TV box The TV box that is often heard now is actually an Internet set-top box. It is like a mobile phone host with an embedded Android system. It is very similar to a traditional set-top box, but its content and functions are much more powerful than traditional set-top boxes. . The traditional set-top boxes are basically local radio and television products, and can only broadcast local radio and television cable channels, and cable set-top boxes are basically also need to pay an annual fee. Can a smart TV connect to a TV box? A smart TV can connect to a TV box or to a cable TV set-top box. However, accessing a TV box is a bit redundant because the function of the smart TV and the TV box is the same, except that the box has no screen. Of course, unless the TV and the box are products of two manufacturers, there will be some differences in the interface and some functions and Internet content. In addition, smart TVs and TV boxes can now be installed with an APP. What functions you want will only need to be connected to the Internet to download the APP directly from the app store. Not only can you watch Internet videos through the APP, but you can also play games, browse the Internet, and use mobile phones and TV screencasts. Now SARFT has restricted the installation of live-view software on smart TVs and TV boxes. So whether you choose a smart TV solution or choose a traditional TV-TV box, you will not be able to watch TV channels. How to choose the two TV box prices are generally cheaper, and you can buy one for two or three hundred bucks. If you choose the program for ordinary TV and TV boxes, if you don't like the box vendor's service or video content, replacing one is not It is very expensive, and generally this kind of match is more affordable. If you buy a TV alone, it will probably be about 2 thousand. In China, you beat out and buy a set-top box. I believe that most people can now consume it. For smart TVs, at least 3,000 yuan has started. The update iteration of a current smart TV is relatively fast. Unlike previous TV products, it would be OK to buy one or even use it for ten years. Nowadays, smart TV may not be able to keep up with the hardware configuration of TV for four or five years. If it is to replace the TV box, it is more convenient and convenient. Xiao Bian concludes: Of course, whether you choose a smart TV or a TV box depends on your personal choice. After all, everyone's ideas are different. Xiao Bian's suggestion, if it is only for home use, if TV demand is not high, then TV boxes can be completely chosen. If the demand for television is high, it is recommended to buy a smart TV, so that the entire experience will certainly be stronger than the box.
The PA system of the audio generally refers to the audio audio sound reinforcement system. The audio system can be a system composed of an audio source, a preamplifier, a power amplifier, and a speaker. The sound source in the system is a microphone, which is used to convert the sound signal into an electrical signal. The sound source can also be other sound sources, such as tape players, CD players, MD players, etc.
If the sound source is not a microphone, you can cancel the front end.This system is the simplest system for conferences and requires a microphone. Since the output voltage signal of the microphone is very small, between O.lrnV and tens of millivolts, it is not enough to directly drive the power amplifier. The sensitivity of the power amplifier (rated input) is often specified around 0dB (0.775). The power amplifier transmits the amplified electric power signal to the speaker (usually called a speaker), and the speaker then converts the electric power signal into an acoustic signal and radiates it into the space to complete the sound amplification effect, that is, sound reinforcement.
Audio equipment probably includes amplifiers, peripheral equipment (including limiters, effects, equalizers, exciters, etc.), speakers (speakers, speakers), mixers, sound sources (such as microphones, musical instruments, VCDs, DVDs) display devices and so on. Among them, the speaker is the sound output equipment, speakers, subwoofers, etc., a speaker includes high, low, medium three kinds of speakers, three but not necessarily three
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