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Glossary
90 ADAT XT Reference Manual
by the motion picture and television industries. A complete description of LTC can be
found in
The Time Code Handbook
, by Walter Hickman. SMPTE timecode is the
standard sync reference for professional audio and video post-production.
S/PDIF Interface
Similar to the AES/EBU interface, but created by Sony and Philips with consumer
applications in mind. The optional AI-1 from Alesis offers both the consumer S/PDIF
interface and professional AES/EBU format for use with the XT.
S-VHS
Acronym for Super Video Home System, an improved version of VHS with greater
resolution and dubbing capabilities, as well as improved sound.
T
Track
An area of tape on which audio is recorded. A track can be thought of as a picture of
an output over time.
U
Unbalanced Audio Signals
Signals that are carried on two-conductor cables, one “hot” and one ground.
Unbalanced connections save costs, but are more prone to picking up hum and
interference with low-level signals.
V
VHS
Acronym for Video Home System, a video recording system introduced for consumer
use and using standardized cartridges.
VITC
Vertical Interval Time Code (VITC) is timecode information encoded in the vertical
retrace interval of the video signal (this is the time when the beam is getting back to
the top of the screen). The advantage of VITC is that the timecode value can be read
when the video deck is paused, and is accurate to the frame.
W
X
Y
Z