Appendix E: Glossary 331
its data without power supply. The memory contents
can be erased with ultraviolet light and rewritten.
Fade to/from black: A digital effect that fades up from
black at the beginning of a clip or down to black at the
end.
Field: A frame of video consists of horizontal lines
and is divided into two fields. The odd lines in the
frame are Field 1; the even-numbered lines are Field 2.
File format: The organization of information within a
computer file such as an image or word processor
document. The format of a file is usually indicated by
its “file extension” (e.g. doc, avi or wmf).
Filters: Tools that alter data to produce special effects.
FireWire: Apple Computer’s trademarked name for
the IEEE-1394 serial data protocol.
Frame: A single image in a video or animation
sequence. If using full NTSC or PAL resolution, one
frame consists of two interlaced fields. NTSC, PAL,
field, resolution
Frame rate: The frame rate defines how many frames
of a video sequence are played in one second. The
frame rate for NTSC video is 30 frames per second.
The frame rate for PAL video is 25 frames per
second.
Frame size: The maximum size for displaying image
data in a video or animation sequence. If an image
intended for the sequence is larger than the frame size,
it must be cropped or scaled to fit.
Frequency: The number of repetitions in a periodic
process (like a sound wave or an alternating voltage)
per unit of time. Usually measured in repetitions per
second, or Hertz (Hz).
