![]() ![]() If the number and size of connectors is too large for the space on the backplate the connectors will be off-board, typically using a breakout box, or an auxiliary backplate. The output signal is connected to an amplifier, headphones, or external device using standard interconnects, such as a TRS connector or an RCA connector. Sound cards usually feature a digital-to-analog converter (DAC), which converts recorded or generated digital data into an analog format. Many computers have sound capabilities built in, while others require additional expansion cards to provide for audio capability. Typical uses of sound cards include providing the audio component for multimedia applications such as music composition, editing video or audio, presentation, education, and entertainment (games). ![]() A sound card (also known as an audio card) is a computer expansion card that facilitates the input and output of audio signals to and from a computer under control of computer programs.
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