AMTEC
[Film Technology]
[Film Technology]
Manufacturer’
s term for a monochrome time base corrector
using sync as a reference
signal. The conversion of analogue data to digital data form is now fundamental for all sorts of
everyday processes. Many phenomena in the physical world, for example the
intensity and colour of light or the intensity of sound waves, vary in a
continuous or analogue manner. Previously, the recording, transmission, and
manipulation of images and sound were executed by transforming the images and
sound into electrical voltages, whose variations
exactly mimicked changes in the original quantity. These continuously varying
electrical voltages were, in turn, manipulated in various ways before being
converted back to their original form. With the development in the power of
computers, however, it has become more convenient and economical to convert
these analogue signals to digital signal form for the purposes of recording,
transmission, and alteration, and then convert them back to analogue form for
their final use. A further advantage of the digital
transmission and manipulation of signals is that it can, to a large
extent, prevent the introduction of distortion
and noise into the signal when it is transmitted
and copied.
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