What Is a Surround Sound Subwoofer?

The so-called surround sound usually refers to a playback mode in which the sound seems to surround the listener compared to the two-channel stereo. The reproduced sound field produced in this way, in addition to retaining the original source's sense of the direction of the sound, is accompanied by the sound effects of surround and expansion (the sound diffuses or reverberates away from the listener). When listening to surround sound, the listener can distinguish the sound from the front, back, left, and right, that is, surround sound can expand the spatial sound source from the line to the entire horizontal plane or even the vertical plane, so it can realistically reproduce the spatial reverberation process of the performance hall, with more For a moving presence. If combined with the images of a large-screen TV or movie, which makes both vision and hearing work, this kind of presence is more realistic, more vivid, and therefore more infectious.

Surround sound

English name

1,

No requirements for sound source

3D surround sound has no strict requirements on the sound source, no coding is required, and it can process any two-channel stereo sound source.

Four-channel surround sound system

The so-called four-channel system refers to the transmission and playback of the original sound signal without any change. In a four-channel surround sound system, four microphones are placed in the front, back, left, and right directions of the sound source to sample the four-channel sound source. Then, the four-channel transmission is sent to the device. On the front, back, left, and right speakers of the viewer to reproduce the surround sound effect. This solution is not used in television circuits because of too many transmission channels.

Analog surround sound system

The analog surround sound system uses a specific surround sound processing circuit to process the two stereo signals. According to the two major characteristics of human hearing physiology, namely the masking effect and

Summary

With the advent of a series of high-end PCI sound cards such as SBLive! And MX300, supporting multi-channel speaker output has become a new symbol of personal computer audio systems. New 3D sound effects standards such as EAX and A3D are becoming more and more popular, which has also driven high-end PCI sound cards and multipoint

With a good sound card, the next step is to choose a speaker. Today, the multi-point surround speakers on the market are mainly CREATIVE brands, and the mainstream products include two series, FPS and DTT.

FPS series

FPS is the abbreviation of "FourPointSurround. There are mainly two styles of 1000 and 2000. FPS1000 is red and temporary PC Work4.1. It is a typical four-point surround system. It consists of four satellite speakers and a subwoofer. Composition. The power of each surround satellite speaker is 3.5W, and the power of the subwoofer is 10W. Although it is not very large, it is enough for home use. The FPS1000 has a small size and excellent surround effect. However, its disadvantages are also obvious, such as The sound effect is poor, the power is too weak, so it is not suitable for listening to music, and its anti-interference ability is also insufficient. Of course, as

Every user has different requirements for computer multimedia. Some friends only require sound from the sound card and sound, while some users have higher requirements in this regard and want to have a surround audio system. No matter what the idea is, there is nothing wrong with it. The key is to pay attention to the matching of sound card and speakers when purchasing. Especially when choosing high-end products, a momentary mistake is likely to cause economic loss and defect in effect. The following author will briefly introduce the purchasing and matching skills of surround audio systems based on different uses and price positioning.

If you are a game enthusiast, there are three different consumption plans at different price points:

1. For users who are tight at hand but want to experience surround sound and game 3D sound effects, I recommend the combination of CREATIVESBPCI64 and FPS1000, which is the cheapest surround sound system. The signal-to-noise ratio of the PCI64 sound card is very high, but the price is less than 300 yuan; the price of FPS1000 is also gradually lower, the market price is about 600 yuan, so that the two are less than one thousand yuan, which is relatively value. The effect is also very good for ordinary users.

2. If you have a budget of more than 2,000 yuan, you can consider the combination of SBLIVE! VALUE plus FPS2000D. Now the market price is about 2400 yuan. Since SB LIVE! VALUE does not have a digital word card, the DigitalDIN digital input interface of FPS2000 cannot be used. It needs to be changed to analog input. In the future, you can add a word card system and upgrade to a digital audio system.

3. If you are a loyal enthusiast of digital surround audio system, then please choose the super combination of SBLIVE! Full Version + FPS2000D! It brings you real digital sound. Of course, the overall price is as high as 3,600 yuan, which is not affordable for ordinary people.

PCDVD users, of course, should consider a 5.1-channel audio system. SBLive! VALUE + DesktopTheater5.1 is a cheaper combination, and high-end users can choose SB Live! To use with DTT2500, with excellent results.

Everyone may have this question: Why do sound cards recommend the SBLive! Series? The reason is that CREATIVE's products have first-class compatibility and quality assurance, and after comparison, the author thinks that its three-dimensional sound effect is more outstanding in various products, so I chose it . Of course, other sound cards also have their own characteristics. As long as they have multi-channel support, they can also create surround effects. In addition, in the multi-point audio option, you can also purchase two pairs of domestic wooden stereo active speakers of the same model at the same time, which are respectively connected to the sound card, which is also a very good solution. High-quality wooden speakers have great advantages in music playback. Brands Runbao-Hussars and Edifiers can be considered.