The term video editing can refer to:
Video editing is the process of re-arranging or modifying segments of video to form another
piece of video. The goals of video editing are the same as in film editing — the removal of
unwanted footage, the isolation of desired footage, and the arrangement of footage in time to
synthesize a new piece of footage.
Early video recorders were very expensive, and the quality loss of copying was so great, that 2 inch Quadruplex videotape was edited by visualizing the recorded track with
ferrofluid, cutting with a razor blade or guillotine cutter and splicing with tape. Improvements in quality and economy, and the invention of the
flying erase head, allowed new video to be inserted cleanly into an existing tape. This technique
was referred to as linear editing. If an early scene needed to be lengthened, all the later scenes would need to be added again.
Multiple sources could be played back simultaneously through a vision mixer to be mixed or
keyed.
Modern non-linear editing systems are computer-based, though there was a transitional analog period using multiple source VCRs
or LaserDisc players. Footage is played into a computer and
captured on a hard drive. Editors use software such as Avid's Media Composer and Xpress
Pro, Apple's Final Cut Pro, and
Adobe's Premiere to manipulate the captured
footage. High definition video is becoming more popular and can be readily edited using the same software along with related
motion graphics programs. Clips are arranged on a timeline, music tracks and titles are added, effects can be created, and the
finished program is "rendered" into a finished video. The video may then be distributed in a
variety of ways including DVD, web streaming, Quicktime
Movies, iPod, CD-ROM, or videotape.
The increased popularity of online video clips has produced a large increase in video
editing activity by Internet users. The Internet has become an important source of low-cost
video-editing tools.
See also
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