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ext3
A file system widely used with
Linux, which adds a journaling
function (allowing data changes
to be handled as transactions) to
the ext2 file system. It requires a
shorter time to recover from
hardware problems.
Fade to Black (FTB)
An effect in which video fades
out to a black screen.
Filter
A function which removes high
or low frequencies. Used to
remove cable noise and other
kinds of noise.
Flip
Screen explanatory diagrams,
including text, illustrations,
graphics, and maps. A flip is
displayed in the video and is
used to explain the video
content.
IEEE1394 (Institute of
Electrical and Electronics
Engineers 1394)
A standard for a high-speed
serial bus for connection not
only of computer peripherals,
but also of digital devices to
each other. Known as FireWire
by Apple Computer, and as
i.LINK by Sony Corporation.
FTB (Fade to Black)
See "Fade to Black."
GPI (General Purpose
Interface)
A general purpose interface that
is used to communicate controls
to devices that do not have
standard interfaces.
GUI (Graphical User
Interface)
A user interface which, unlike
traditional text-based interfaces,
is designed around graphical
elements such as buttons and
menus.
Intercom
A network that allows staff
members to talk to each other
during program production.
Host name
A name assigned to a computer
on a network to make it easier to
identify. Usually consisting of
alphanumeric characters,
although conventions differ
according to the system. The
most commonly used types are
the terminal identifiers to the
left of Internet domain names.
i.LINK
The high-speed serial bus
standard IEEE1394.
Also called FireWire. Allows
connections between computers
and peripherals, and also direct
connections between digital
devices such as digital cameras.
IPv6
The next-generation Internet
Protocol, the successor to the
current IPv4 protocol.
IRE (International Radio
Engineers)
A measure of the brightness
level of video on the grayscale,
ranging from 0 to 100. The
brightness level of black is
sometimes set at 0 IRE and
sometimes set at 7.5 IRE.
Limiter
A function which prevents
audio levels from exceeding a
specified threshold. Used to
suppress peaks in audio with
large differences in amplitude.
Logo
A permanently visible mark
shown in video for the purpose
of copyright protection.
Luminance key
A method of creating a
composite picture by deleting
components of a specified
luminance (brightness).
Typically used to extract bright
characters from a dark
background, so that only the
characters can be added to the
composed picture.
Mix
A type of transition effect. A
new picture is mixed into an old
picture, eventually replacing the
old picture.
Monitor
To listen to audio and view
video. Or a device for viewing
and listening.
Motion JPEG2000
An extension to the JPEG2000
image compression format that
enables video recording. It
provides picture quality
comparable to the DV format,
with file sizes that are smaller
than DV. It is noted for high
compression ratios in scenes
with rapid movement, which are
problematic for the MPEG
format.
Oscillator
A transmitter that oscillates at a
fixed frequency, such as a sine
wave. This unit is equipped with
an internal audio oscillator.
Pan
In audio, to adjust the right/left
balance.
In video, to move the camera to
the left and right.
Glossary
305
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