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Codec
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==Examples== An [[audio codec]] converts analog audio signals into digital signals for transmission or encodes them for storage. A receiving device converts the digital signals back to analog form using an audio decoder for playback. An example of this is the codecs used in the sound cards of personal computers. A [[video codec]] accomplishes the same task for video signals. When implementing the [[Infrared Data Association]] (IrDA) protocol, an endec may be used between the [[UART]] and the [[optoelectronic]] systems.<ref>{{cite web| url = http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0183g/I31065.html| title = IrDA SIR ENDEC functional description}}</ref>
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