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APPENDIX B GLOSSARY
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SMPTE
SMPTE is the acronym for the Society of Motion Picture and Television Engineers (SMPTE). SMPTE
timecode is used to synchronize time between devices. The timecode is calculated in
Hours:Minutes:Seconds:Frames, where Frames are fractions of a second based on the frame rate. Typical
frame rates for SMPTE timecode can be 24, 25, 29.97 or 30 frames per second, depending on your local
standards.
SMPTE Drop Frame Timecode
A method of measuring time in video. Drop frame involves skipping two frame numbers (no frames are
actually dropped) every ten minutes to compensate for the difference between NTSC 29.97 fps video and 30
frame counts per second.
Te l e c i n e
The process of creating 30 fps video (television) from 24 fps film (cinema). See inverse telecine and pulldown.
Te m p o
Tempo is the rhythmic rate of a musical composition, usually specified in beats per minute (BPM).
Time Format
The format in which Vegas software displays the ruler and selection times. These include: time, seconds,
frames and all standard SMPTE frame rates.
Time Signature
See Beats Per Measure.
Timecode
For more information, see Timecode on page 373.
Track
A discrete timeline for audio or video data. Events are placed on tracks and determine when sound or images
start and stop. Multiple audio tracks are mixed together to give you a composite sound that you hear.
Multiple video tracks are composited on top of each other to create the final video output.
Track List
The track list appears at the left side of the Vegas workspace and contains the master controls for each track.
From here you can adjust track volume or transparency, add track effects, mute or solo tracks, and reorder
tracks.
Track View
The track view, or timeline, is the space events appear on tracks.
µ-Law
µ-Law (mu-Law) is a companded compression algorithm for voice signals defined by the Geneva
Recommendations (G.711). The G.711 recommendation defines µ-Law as a method of encoding 16-bit
PCM signals into a nonlinear 8-bit format. The algorithm is commonly used in European and Asian
telecommunications. µ-Law is very similar to A-Law, however, each uses a slightly different coder and
decoder.