Apple Final Cut Pro X 10.1.2 User Guide

 Glossary 4 91
roles  Metadata text labels that you assign to clips in the Browser or the Timeline. Roles provide 
a flexible and powerful way to manage your editing workflow. You can use roles in Final Cut Pro 
to organize clips in your events and projects, control the appearance of the Timeline, and export 
separate video or audio files (also known as media stems) for broadcast delivery, audio mixing, or 
post-production.
roll edit
  An edit that affects two clips that share an edit point. For example,...

 Glossary 492
snapping  When the snapping feature is turned on in Final Cut P ro, items you move in the 
Timeline (including the playhead, the skimmer, and selected clips) appear to jump, or “snap,” 
directly to certain points in the Timeline. This can help you quickly line up edits with other 
items in the project. Snapping affects the functions of many of the editing tools in Final Cut Pro, 
including the Select tool, the Trim tool, the Position tool, the Range Selection tool, and the Blade 
tool. You...

 Glossary 493
three-point editing  An editing technique in which three out of four edit points are set in a 
source selection and a project. When the edit is performed, the fourth edit point is calculated 
automatically by Final Cut Pro.
through edit  An edit point in which the video or audio content on either side of the edit 
is continuous.
TIFF ( Tagged Image File Format)
  A widely used bitmapped graphics file format, developed by 
Aldus and Microsoft, that handles monochrome, grayscale, 8- and...

 Glossary 494
uncompressed 8- and 10-bit 4:2:2  These video formats can be used to store 8-bit or 10-bit 
4:2:2 Y’CbCr video without employing data compression. Bypassing compression reduces the 
computer’s processing load but increases the data rate considerably. A large-capacity RAID 
storage system is typically required to work effectively with uncompressed video. In many cases, 
Apple ProRes is a better choice. The data rate of uncompressed 4:2:2 video varies according to 
frame size and frame rate....

 Glossary 495
XDCAM  Sony optical disc format for recording DVCAM and IMX video within MXF container files. 
See also DVCAM, IMX.
XDCAM EX
  A member of the Sony XDCAM product family that uses MPEG-2 video compression 
with 4:2:0 chroma sampling. In contrast to XDCAM HD, XDCAM EX supports 720p and records 
full HD resolution (either 1920 x 1080 or 1280 x 720). Its maximum bit rate is 35 Mbps. Instead 
of optical discs, XDCAM EX camcorders use solid-state memory cards known as SxS cards. See 
also HDV ....