APPENDIX A: GLOSSARY
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Output cable: One of the eight (or sixteen) MIDI OUT
jacks in a MIDI Time Piece network.
PA L / SE C AM : Phase Alternate Line. A system of coding
color information that is similar to (but incompatible
with) NTSC format. PAL/SECAM uses 25 frames per
second.
Script: An itemized description of the commands that
make up a base setup or modifier. The script is displayed in
the Setups & Modifiers window when the setup or
modifier is selected.
Sequencer: A computer or software running on a
computer that is capable of recording and playing back
MIDI data.
SMPTE: Society of Motion Picture and Television Engineers.
The acronym SMPTE is often used in audio production as
a shorthand expression for SMPTE Time Code.
SMPTE Time Code: A series of binary impulses that
express the location of each frame on film, video, or audio
tape in hours, minutes, seconds, and frames. SMPTE has
two forms: 1) an 80-bit audio signal, called Longitudinal
Time Code (LTC), or 2) a video signal recorded in the
vertical blanking segment of video frames, called Ver t i ca l
Interval Time Code (VITC). In either form, SMPTE Time
Code has four different formats for counting frames per
second (fps): 24 fps, 25 fps, 30 fps, and Drop Frame. 24 is
used mostly with film; 25 is a European format for film; 30
is the US standard for audio and video; Drop Frame is
required only with color video programs in which the
SMPTE time code numbers must precisely match the
actual elapsed time.
SMPTE-to-MIDI Converter: A device that reads SMPTE
time code from audio or video tape and converts it to
MTC or DTL to synchronize MIDI devices to tape.
Striping: The process of recording SMPTE time code.
Switcher/Special Effect Generator: A machine that takes
multiple video input signals and routes them to a variety of
destinations to add special effects such as dissolves.
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