Glossary
Glossary-
4
F
Fade:
A dissolve from full video to black or
from full audio to no audio.
Fade-to-Black:
See PRESET BLACK
Fault Isolation:
The determination of the cause
of a failure by identifying a defective
component or circuit.
Field:
One complete scan of the TV screen by
the electron beam. For NTSC, two inter-
leaved fields of 262 and 263 raster lines make
up a frame. For PAL, two interleaved fields
of 312 and 313 raster lines make up a frame.
File:
A collection of related records in a
computer system treated as a unit.
Firmware:
Physical devices which house
computer programs. (Also see Hardware
and Software.)
Flag:
A bit of information used to tell the
program that some condition has occurred.
Flash:
Interference or breakup to one field of
video, also known as a hit.
Floppy Disk:
An electronic device which is
capable of storing data and programs for
ease of retrieval and use by a computer.
(Also see Hard Disk.)
Frame:
Two interleaved fields which form
one complete picture.
Frame Lock:
Synchronization of the video
signal with SMPTE time code.
Freeze Frame:
The recording of a single frame
of video.
Front Porch:
The portion of the video signal
that occurs during blanking and extends
from the end of active video to the beginning
of sync.
G
Generation:
The number of times a dupe is
removed from the original videotaped
material. A copy of the original is a second
generation tape, and so on.
GPI (General Purpose Interface):
An electronic
device containing switches activated by a
remote signal. An editing system controls
various remote components through GPIs.
Grey Scale:
Range of luminance levels from
black to white.
H
Hard Copy:
A print out on paper of data
contained on another media, such as a
monitor or disk.
Hard Disk:
An electronic device which is
capable of storing large amounts of data and
programs for retrieval and use by a
computer. (Also see Floppy Disk).
Hardware:
The electric, electronic, and
mechanical equipment used to perform the
tasks controlled by a computer. (Also see
Firmware and Software).
Head:
An electromagnetic device that reads,
writes, or erases information in a storage
media, such as a floppy or hard disk.
HEX (Hexadecimal):
A numerical notation
system using a base of 16. (Also see Binary
and Octal).
House Sync:
The signal generated in the
studio as a reference for other timing signals.
I
I/O Device:
Equipment used to send
information or data signals to and from a
computerized editing system.