Apple Final Cut Pro 6 - Manual (Page 1948)

Glossary 465
overscan The part of the video frame that cannot be seen on a TV or video monitor.
Broadcast video is an overscan medium, meaning that the recorded frame size is larger
than the viewable areas on a video monitor. The overscan part of the picture is usually
hidden behind the plastic bezel on the edge of a television set. While you are editing,
you can use the action safe area to indicate the approximate portion of a frame that is
hidden because of overscanning.
overwrite edit An edit in which the clip being edited into a sequence replaces frames
that are already in the sequence.
P2 (Professional Plug-in) A compact solid-state memory card designed for
professional and broadcast media gathering. Because they have no moving parts, these
cards are compact and sturdy as well as resistant to heat and cold. P2 cards typically
store DV, DVCPRO, DVCPRO 50, and DVCPRO HD media.
PAL format Acronym for Phase Alternating Line, a 25 fps (625 lines per frame) interlaced
video format used by many European countries. Digital PAL video has a frame size of
720 x 576. Compare with NTSC format.
Parade scope A waveform monitor mode that shows the video signal as separate red,
green, and blue waveforms. Useful for comparing the relative levels of reds, greens, and
blues between two clips, or within a single clip.
peak (1) Short, loud bursts of sound that last a fraction of a second. In spoken
dialogue, letters like P, T, and K at the beginnings of words can result in little peaks if
the person speaking is close to the microphone. (2) Occurrences of clipped audio
appearing in Final Cut Pro as 0 dBFS peaks. Excessive peaks tend to indicate that the
audio was recorded at unsuitable levels. A command in the Tools menu, Mark Audio
Peaks, lets you identify 0 dBFS audio peaks in clips or sequences.
peak meter A digital audio meter that displays the absolute level of an audio signal as
it plays. So named because every peak in the signal can be accurately seen.
PCM Stands for pulse-code modulation. PCM is a method of storing or transmitting
uncompressed digital audio data.
phase (1) In audio, the timing relationship between two identical, or similar, audio
signals. (2) In video, the timing relationship between the composite video chroma
signal and the chroma subcarrier signal which determines the hue.
PICT A still-image file format developed by Apple Computer. PICT files can contain
both vector images and bitmap images, as well as text and an alpha channel. PICT is a
common image format on Mac OS X computers.
pixel One dot in a video or still image. A typical medium-resolution computer screen is
1024 pixels wide and 768 pixels high. Digital video movies for the web are often
320 pixels wide and 240 pixels high.