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What Is a Sound Card – A sound card (also known as an audio card) is an internal expansion card that provides input and output of audio signals to and from a computer under the control of a computer program. The term Sound Card is also applied to external audio interfaces used for professional audio applications.
What is the function of the sound card
Sound functionality can also be integrated into the motherboard, using components similar to those found on plug-in cards. An integrated sound system is often referred to as a sound card. Sound processing hardware is also present on modern video cards with HDMI to output sound along with video using that connector; Previously they used an S/PDIF connection to the motherboard or sound card.
What is the function of the sound card
Typical uses of a Sound Card or Sound Card functionality include providing audio components for multimedia applications such as music composition, video or audio editing, presentation, education and entertainment (gaming) and video projection. Sound Cards are also used for computer-based communications such as voice over IP and teleconferencing.
The sound card uses a digital-to-analog converter (DAC), which converts the recorded or generated digital signal data into an analog format. The output signal is connected to an amplifier, headphones, or external device using a standard interconnect, such as a TRS telephone connector. [Sebuah]
A common external connector is the microphone connector. Input via the microphone connector can be used, for example, with speech recognition or voice over IP applications. Most sound cards have a line connector for analog input from a sound source that has a higher voltage rating than the microphone. In both cases, the Sound Card uses an analog-to-digital converter to digitize this signal.
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