The computer sound card

A Sound card is a solid state electric circuit that allows you to work with sound on the computer. The first computers for about 10 years, did not expect the use of sounds, and all that it was possible to hear from them, it clicks various electro-mechanical relay and a solid beeping the internal speaker, who voiced the state of the system and some applications and games.

The Progenitor of the sound card can be considered a device company Covox, Inc., which is connected to the printer port of an IBM PC and could reproduce digital mono audio. In addition, this fact suggests that the Covox was the first external sound card.

Since 1988, the Creative company began to produce sound cards based on Yamaha processor. However, the artificial sound of instruments, was still far from perfect, and the audio files took a huge amount of memory-roughly 10 megabytes per minute of sound.

Then the sound card has become a repository of MIDI sounds, and multimedia files contain references to commands for the playback of a sound.

With the advent of more powerful processors since about 1998, most manufacturers have integrated sound card EAX technology and the processor is switched to the PCI bus, to the present time, the principle of extracting sound from a computer did not change significantly.

Modern sound card can be classified as inline, embedded and external. Embedded maps are in the overall scheme of the motherboard. All audio inputs and outputs are also on it. Sound processing is the Central processor. To install the sound card driver is not required.

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At the present time In connection with the increase in CPU performance of computers, many motherboards come with integrated sound card, featuring increased power and high quality.

Embedded sound card can connect to consumer in a special PCI slots. They have their own powerful processor, which provides high quality sound. Among them are the media, prosumer and professional audio cards.

Multimedia sound card designed for home users. It is able to provide quality sound level Hi-Fi and decent look in combination with computer sets of acoustics 5.1.

Semi-professional sound card designed for consumers with excessive demands for good sound. As a rule, along with the quality they are expensive.

A Professional sound card designed to meet the needs of musicians and their producers, arrangers, and those involved in recording and producing music, highest quality playback and low distortion sound. These cards are able to handle any 3D sound. For them, specially developed software and available for more professional equipment.

External sound card-usually located outside the computer's case or connected to it via USB 2.0 or FireWire. They allow to solve the following problems:

• Get Rid of electromagnetic interference emanating from other components of the computer that affect the quality of the sound and create phonetic noises. Built-in maps, this problem is usually solved with additional insulation that increases the cost of the device.
• Connecting a large number of cables, including microphone, mixer, amplifier, to block external sound card, much easier than to hang this bundle of wires with the other on a single computer.
• External sound card can connect to any mobile device that has the required connector, such as a laptop computer.