Analog recording

Analog recording is a technique used for the recording of analog signals which, among many possibilities, allows analog audiofor later playback. Analog audio recording began with mechanical systems such as the phonautograph and phonograph. Later, electronic techniques such as wire and tape recording were developed. Analog recording methods store analog signals directly in or on the media. The signal may be stored as a physical texture on a phonograph record, or a fluctuation in the field strength of a magnetic recording. This is in contrast to digital recording where an analog signal is sampled and quantized to produce a digital signal which is represented and stored as discrete numbers.