Analogue recording is a technique used for the recording of
analogue signals which, among many possibilities, allows analogue audio and
analogue video for later playback.
Analog
recording methods store signals as a continuous signal 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 different
from a digital recording which digital signals are represented as discrete numbers.
Digital imaging does not require chemicals. Digital images
are captured using arrays of photo sensors and these images are then processed
by specialised software. Prints can be made through for traditional projection.
Or film can remain in a digital form for digital projection.
In an analogue audio signal, the voltage of the signal varies
with the pressure of the sound waves. Analogue waves are smooth and consistent.
Digital waves are more square.
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