(Analog -to-DigitalConverter) "recording" feature of sound cards that converts the analog/ sound waveforms to digital format, i.e. bits and bytes. This digital representation can then be stored, edited, processed and transferred between media. To playback sound files, the sound card uses a DAC (Digital-to-Analog Converter). The ADC samples the audio at very fast intervals ("sampling rate"), producing a stream of snapshots. When played back by the DAC at the same pace, the samples are perceived as sound.
