The USB sound card is an external sound card. It looks like a U disk. The top of the USB sound card has a USB cable, which is used to plug into the USB interface of the motherboard, and the other end of the sound card is used to connect the ordinary speaker. . Unlike other external devices that require a separate power supply, the power of a small USB device comes from the host, does not use an external power supply, and the USB sound card is no exception. Its USB cable has four strands in use, two of which are used to Electric energy is obtained from the host computer, and the other two are information data lines.
USB sound card is another rising independent sound card product, but it is inextricably linked to the onboard AC'97 sound card. This is mainly because the AC'97 sound card separates the digital circuit and the analog circuit of the sound card, and the AC'97 sound card integrates the audio controller directly connected to the PCI bus into the chipset, which makes the digital analog of the AC'97 soft sound card. The conversion circuit and the analog output circuit can work independently of the PCI bus. That is to say, the AC'97 standard is used, so that the sound card can be free from the constraints of the ISA bus and the PCI bus, which is also a necessary condition for the formation of external independent sound cards such as USB. Under the support of the operating system that supports AC'97 soft sound card, when it is inserted into the USB interface, the system will automatically recognize that it is an AC'97 CODEC, and then automatically set as a USB AC'97 controller, this is the formation A general principle of USB sound card.
The biggest advantage of the USB sound card is that as long as the machine provides a USB interface, you can enjoy the effectiveness of the sound card anytime, anywhere. The advantage of using the USB interface for the sound card is also to reduce the digital-to-analog conversion process of the sound, not to be interfered by the motherboard circuit noise and voltage Therefore, in theory, a purer sound signal is obtained, and the use of the USB interface is more flexible and convenient in mobility. This is the main reason why the USB sound card is now recognized by most consumers in the market.
Nowadays, there are more and more sound card products based on USB interface in the market, and the price and quality are uneven. In addition, the applicability of consumers will also be different. Xiaobian took this opportunity to recommend several market reputations to some consumers. And good performance USB sound card products, I hope it will be helpful when buying.
Magic stone A880 USB sound card market price: 150 yuan
Magic Stone A880 USB mobile sound card is an ultra-small USB sound card first launched by Shenzhen Hengbang High-tech Co., Ltd. in China. He fully demonstrated that USB has the characteristics of removable and convenient installation. This mobile sound card adopts the global mainstream The USB mobile digital audio solution includes advanced audio technology, and comprehensively upgrades the sound quality, sound effects, rhythm, recording and other functions, leading the new trend in the field of external USB sound cards.
Due to the use of USB technology, this sound card is very compact in appearance, it is about the size of an ordinary flash drive, and has a different host color for consumers to choose from. The panel has a power indicator, mute button, and volume increase and decrease. Button. In addition, the USB2.0 full speed interface is used, which is external to the case, plug and play, easy to carry and move, and effectively eliminate the electromagnetic interference inside the case, not easily interfered by circuit noise and voltage, making the sound quality more pure.
In addition to being compact in design, the Magic Stone A880 USB sound card is also inferior in functionality. It uses advanced multi-channel technology to break through the two-channel sound mode of the traditional sound card to achieve extremely strong virtual 5.1. The dynamic sound effect of the channel, and the position of the five analog speakers can be freely rotated and adjusted, which enhances the user's participation. In addition, the A880 sound card also uses the most advanced Xear 3D technology, which fully supports the functions of MS DirectX, EAX1.0 / 2.0, and HRTF 3DX. The sound quality is realistic, which satisfies the demands of game players in pursuing the sound recognition effect.
Although it doesn't matter that he is only the size of a flash drive, it also provides a variety of combinations of mixing, rhythm, sound field and other modes. And 23 preset sound field preset modes, all make the music scene richer and more natural in multiple modes. There is a headphone jack and a microphone jack just at the end of the sound card. The microphone can be used to set the recording function through software settings, and MTV can be used to sing karaoke on the computer. The function is stronger than the general USB sound card.
Comment: The Magic Stone A880 USB mobile sound card is actually mainly used by some gamers. Due to its small size, it can be carried around with it. The USB 2.0 interface is used to effectively solve the speed bottleneck problem of the previous generation USB sound card and break away from the inside of the chassis. The high electromagnetic interference environment and the independent power supply using USB are very convenient for external applications. In addition, the A880 USB mobile sound card is also very rich in functionality. A variety of sound modes and the comprehensive application of Xear 3D technology provide powerful sound effects for game users outside.
RantoPad USB sound card market price: 200 yuan
Although the RantoPad USB sound card is also a product launched for games, its appearance design and market positioning are quite different from the previous Magic Stone A880. RantoPad is a well-known domestic manufacturer of gaming peripherals. It originally focused on peripheral products such as headphones and mouse pads. In order to adapt to the development, RantoPad also launched USB sound card products, and it is also based on the market position of gamers.
Different from the previous design with a flash disk style, this RantoPad USB sound card has its own unique characteristics in shape. The diamond-shaped cuboid and a USB extension cable form the main body of the sound card, mainly because it redesigns the circuit , The size is greatly reduced, so the shape is very small.
The golden material coating covers the entire sound card, and it feels very expensive. Because this is also a game-oriented sound card, the strength of sound localization can also provide players with important conditions to ensure the best state. So no matter what venue and space the sound card is used in, you can get your best by carrying the sound card. The habitual sound environment is very important for gamers.
Since it is a game-type sound card with outstanding performance, it naturally performs quite well in terms of sound effects and so on. RantoPad uses a digital 32bit digital stereo output, and can also adjust the dynamic high and low output to match perfectly, so that the sound quality is closer to the game itself.
In addition, the specially enhanced digital audio processor provides a full range of output, and the RantoPad USB sound card with the complete digital audio processor as the core has been integrated and driven in the chip. Like the last USB mobile sound card, RantoPad is also a product specially designed for headphones. Through pure digital audio processing conversion, the data output by the computer can be directly input into the headphones, making the sound in the headphones more realistic. Due to the USB interface, it supports hot swap and supports the latest USB2.0 transmission specifications, which can make the sound transmission more smooth and unhindered.
Comment: Just like the previous sound card, the RantoPad USB sound card is also a product tailored to the game. In addition to being compact and easy to carry, it is also excellent in terms of functionality and sound performance. The use of digital 32bit digital stereo output and a specially enhanced digital audio processor provide a full range of output, making the sound thicker and truer, and more reproducible.
Innovative Digital Music LX USB sound card market price: 299 yuan
Now that USB sound cards are so popular today, how can Singapore's innovative company, which is a leader in the production of digital sound products on personal computers around the world, miss the opportunity to expand the market, this Digital Music LX sound card is innovatively launched for low-end users Products based on USB1.1 interface.
Similarly, this innovative USB sound card is also very cute in appearance 119 & TImes; 69 & TImes; 26mm, weighs only 116g, the overall shape is square and four corners are chamfered design, so that looks like the sound card shell is more streamlined, with pearl white The main tone makes the Digital Music LX USB sound card more elegant and noble. This sound card has some changes compared to previous products in the expansion design of the sound card, but it still has perfect I / O capabilities, and includes line in, line out, fiber output, headphone output, and manually adjusted volume control. The functions of the built-in sound card. In addition, since it is an external independent sound card, the volume adjustment can be manually adjusted outside, and the surface has anti-skid teeth with a good touch, which is very convenient for operation and control.
The sound card also has its own optical fiber output function. On the side of the sound card, there is a toggle-type switch for the sound card to convert between analog output or digital output. It also has a bass enhancement function, and has a 10-step equalization adjustment function to enhance the MP3 music listening experience. This sound card also uses the innovative and patented CSMM 3D technology, which is said to be able to feel 5.1 surround sound in stereo headphones.
At the interface, RCA and S / PDIF output and stereo RCA input are provided, among which S / PDIF digital input and output, which is very important for this kind of sound card mainly used in home theater, because of the demand for DVD digital sound effects, Including technologies like AC3 / DTS, which all need to rely on S / PDIF digital input and output interface to complete. In addition, in order to ensure good output and input quality, Digital Music LX uses RCA sockets for connection. For a highly mobile external sound card, the reliable contact performance can ensure the maximum sound quality.
Comment: Although the transmission interface of this innovative Digital Music LX USB sound card is USB1.1, considering that it is mainly aimed at the low-end user group, there is no bottleneck barrier to meet the general two-channel data transmission. Similarly, the sound card also uses USB direct power supply, eliminating the trouble and embarrassment of the external power supply, making it very convenient to carry it elsewhere. This sound card should be said to be suitable for some notebook users.
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