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Video Production Glossary
On and Off - Line Editing
Offline editing is the film and television post-production process in
which raw footage is copied and edited, without affecting the camera
original film or tape. Once a programme has been completed in offline, the
original media will be conformed, or on-lined, in the online editing stage.
Modern offline editing is conducted in a non-linear editing suite. The
digital revolution has made the offline editing process immeasurably
quicker, as practitioners moved from time-consuming linear (tape to tape)
suites, to computer hardware and software such as Adobe Premiere, Final Cut
Pro, Avid, Vegas Video and Lightworks. Typically, all the original footage
(often tens or hundreds of hours) is digitized into the suite at a low
resolution. The editor and director are then free to work with all the
options to create the final cut.
Online editing is generally the final stage of video editing.
When the offline edit is complete, the pictures are re-assembled at full or
'online' resolution. An edit decision list or equivalent is used to carry
over the cuts and dissolves from the offline. Projects may be re-captured at
the lowest level of compression possible- ideally with no compression at
all. This conform is checked against a video copy of the offline edit to
verify that the edits are correct and frame-accurate. As well, this cutting
copy provides a reference for any video effects that need to be added.
After conforming the project, the online editor will add visual effects,
titles, and apply colour correction. This process is typically supervised by
the client(s). The editor will also ensure that the program meets the
technical delivery specs of the broadcaster, ensuring proper video levels,
aspect ratio, and blanking width.
Sometimes the online editor will package the show, putting together each
version. Each version may have different requirements for the formatting
(i.e. closed blacks), use of bumpers, different credits, etc.
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