About the sound card of this life

Before the sound card was born, our computer could only make a "drip" sound from a simple speaker, but there was no other sound effect; but since the sound card, the computer has entered a new era. It has been given a more vivid and colorful "life"; in addition, the concept of multimedia is also familiar to us from the sound card. For a friend who uses HTPC (Home Theater Computer) to build a home theater, a good sound card is the basic guarantee of the overall effect. Let's take a look at the past life of the sound card:

About the sound card of this life

Those related to the sound card

Nowadays, almost all PC devices are equipped with a sound card system. Home computers are mostly integrated sound cards. For those who are pursuing sound quality, they often choose internal/external independent sound cards. In recent years, USB has appeared. Sound cards and WiFi sound cards, and their size has become smaller, allowing users to carry them with them. For the brand, innovation, Roland, Yamaha, Rhythm Tank, Asus, German tanks, etc., are well-known sound card manufacturers, each of which has a very classic sound card.

Although there are not many users who pay attention to the sound card, a good sound card is one of the indispensable parts of the PC for users who are looking for sound quality; whether you are watching movies, playing games, listening to songs or recording and making numbers. Music, you will need a good sound card. Today, we also use this opportunity to chat with the white users about the artifact PC component that determines the user's sense of hearing (sound quality) - the sound card.

What can a sound card do?

recording:

Recording can be said to be one of the most basic functions of a sound card. Although many ordinary users don't care much about the sound card recording function, it is a function that can bring you a lot of fun. If the recording quality of the sound card is not bad, then you Just need a better microphone, and even record a personal CD album is not a difficult thing; the current high-end sound card can support 96KHz/24bit recording, the actual recording effect has reached a very high level, so as to set up The hardware environment of the home studio provides better protection.

Little White Book 4 What are the things related to the sound card?

Basic structure of the sound card

Little White Book 4 What are the things related to the sound card?

Sound card required for recording

Play digital music:

Playing digital music is also the basic function of the sound card. From the original WAV to the popular MP3, and later to the WMA and other audio formats, digital music forms are widely spread; now, listening to songs while working has become the habit of many users. . At present, the audio card on the market can support a sampling rate of 192KHz, and the number of quantization bits is as high as 24bit. With the sound card, we can hear beautiful music from the computer.

Little White Book 4 What are the things related to the sound card?

Sound card is required to play digital music

Real-time effects:

As the 3D quality of PC games is getting higher and higher, players' requirements for game sound effects are becoming more and more demanding; this requires that the sound card has very powerful computing power and simulates real sound effects, which is born under such demand. Game sound card. A good game sound card allows players to experience more appealing and better sound effects; and let players experience immersive situations by adding pre-built simulated environments like halls, caves, and underwater to games and applications. Realistic sound effects make the virtual game world instantly come to life. Now the sound effects of some high-end gaming sound cards have even surpassed the expensive home audio systems.

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Sound card effect interface

Pioneering the market Germany TERRATEC sound card experience

Pioneering the market Germany TERRATEC sound card experience

External sound card interface diagram

A sound card usually has a MIDI/GAME port. In addition, the sound card usually includes a microphone input port, a line-in port for collecting signals from the CD player or the cassette recorder, and a headphone jack. And a line-out that reproduces sound through a standard sound system or amplifier, a sound processing chip, and a power amplifying chip. In addition, the audio card should be provided with a CD-ROM drive to reproduce the CD player's audio connector so that the sound on the CD can be mixed with signals from other sources and synchronized via the mixer on the audio card.

Current mainstream sound card type

According to the compatibility of the sound card and the multimedia computer, the sound card is mainly divided into three types of interface types: board type, integrated type and external type, to suit the needs of different users.

Board type: Board type sound card is the mainstream product on the market, including entry/general/high-end products, and the price ranges from tens of yuan to thousands of yuan. The early board-type sound card is mostly ISA interface, due to this The interface bus has low bandwidth, single function, and excessive system resources, and has been eliminated. PCI replaces the ISA interface and becomes the mainstream. The card-type audio card has better performance and compatibility, and supports plug-and-play. It is very convenient to install and use.

Little White Book 4 What are the things related to the sound card?

Board PC built-in sound card

Integrated: The sound card only affects the sound quality of the computer, and has no direct impact on the performance of the PC user system. Therefore, most users' requirements for sound cards are only satisfied with the availability, but they are more willing to invest limited funds into the parts that can enhance the performance of the PC system (such as graphics cards, hard drives, memory, etc.); Both adopt integrated sound card; it is integrated on the motherboard, has the advantages of not occupying PCI interface, lower cost, better compatibility, etc., and can meet most audio requirements of ordinary users, and naturally it is favored by the market. Moreover, the technology of integrated sound card is also constantly improving. The advantages of multi-channel and low CPU occupancy of PCI sound card have also appeared on the integrated sound card. It is because of these advantages that the integrated sound card has become the mainstream product in the market.

Little White Book 4 What are the things related to the sound card?

Integrated sound card chip

External: The external sound card was first introduced by Singapore Creative, and the sound card is connected to the PC through the USB interface, which is easy to use and easy to move. However, these products are mainly used in special environments, such as connecting mobile devices such as laptops, so that users can get better sound quality. There are not many external audio cards on the market, and there are two innovative types of Extigy and Digital Music, as well as MAYA EX and MAYA5.1USB.

Pioneering the market Germany TERRATEC sound card experience

USB external sound card

Among these three types of sound cards, integrated products are inexpensive, and the technology is maturing, occupying a large market share. With the advancement of technology, such products have great prospects in the low-end and mid-end markets; PCI sound cards will continue to be the backbone of the high-end audio card industry. After all, independent boards have advantages in design and wiring, and are more suitable for sound quality. The advantages and costs of the external sound card are not obvious to the home PC, and those who need it are those who pursue good sound quality, and ordinary users often do not need such relatively high-end sound cards.

Precautions when purchasing a sound card

compatibility:

Sound card compatibility is a key consideration when purchasing. If you plan to use it only under Windows, you can ignore its compatibility with cards like Sound Blaster and AdLib, as long as the card provides the appropriate Window sound driver. But if you want to use it in a DOS environment, especially if you want to play games, then you should pay attention to the compatibility of the sound card with Sound Blaster and AdLib, in order to use most of the DOS-based game software on the market.

Little White Book 4 What are the things related to the sound card?

Pay attention to sound card compatibility when purchasing

Sound cards generally have interface components that are compatible with other devices, including MIDI/GAME ports, I/O ports, and CD-ROM ports. However, the type and quality of the interface components are different depending on the sound card. So when choosing a sound card, you should choose according to your needs. For example, you should choose a MIDI interface that meets certain standards; if you plan to use a CD-ROM drive at the same time, it is best to purchase a sound card with the appropriate CD-ROM interface, which saves money and saves an expansion slot.

Audio compression:

High-quality digital audio can make storage space difficult, although not as serious as video. For example, 1min CD sound quality uncompressed stereo audio signal takes up 10MB of hard disk space. Therefore, the sound card should support several voice compression standards, including ADPCM (Adaptive Differential Pulse Code Modulation) and ACM (Microsoft Audio Compression Manager).

Little White Book 4 What are the things related to the sound card?

Sound card should support voice compression standards such as ADPCM and ACM

DSP chip:

Some higher-end sound cards (such as the Sound Blaster16ASP) come with a digital signal processor (DSP) chip, a dedicated data processor that can be used to implement audio processing and compression tasks through software programming, thereby reducing CPU stress. Because on a normal sound card, these tasks are all done by the CPU. If your system is slow, the DSP chip can be extremely important. At present, the use of DSP chips has not yet formed a consistent standard, so ordinary users do not have to think too much. If there is no special need, no DSP chip can cope with daily use.

Little White Book 4 What are the things related to the sound card?

DSP chip is a very important digital signal processor chip for high-end sound cards.

software support:

The software that the sound card must have is DOS and Windows drivers, software mixers and CD player programs. Some sound cards (such as Media Magic, etc.) also include very good commercial software provided by Voyetra Technologies, such as Audio Station like home audio, Orchestrator for MIDI creation, and WinDAT, a digital recording editing tool.

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Powerful software support for sound card drivers

China Home Theater Network Summary: Today we talked with you about the sound card, I do not know if friends can get some useful information for themselves; in fact, as an ordinary computer user, we may not often go Pay attention to the sound card, the reason is very simple, we do not have such high requirements for sound quality, it is better to buy a good speaker with that money. However, for home theater enthusiasts and music producers who are looking for better sound quality, a good sound card is still essential; and as a popular knowledge, we also hope that Xiaobai users can have a certain understanding of the sound card. More home theater knowledge, all in China's home theater network, welcome to pay attention to WeChat: cnhifi.

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