Editing Linear video editing (section)

== Introduction of computerized systems ==
A system for editing Quad tape "by hand" was developed in the 1960s. It was really just a means of synchronizing the playback of two machines so that the signal of the new shot could be "punched in" with a reasonable chance at success. One problem with this and early computer-controlled systems was that the audio track was prone to suffer artifacts (i.e., a short buzzing sound) because the video of the newly recorded shot would record into the side of the audio track. A commercial solution known as "Buzz Off" was used to minimize this effect.{{cn|date=October 2024}}

For more than a decade, computer-controlled Quad editing systems were the standard post-production tool for television. Quad tape involved expensive hardware, time-consuming setup, relatively long rollback times for each edit and showed misalignment as disagreeable "banding" in the video. However, it should be mentioned that Quad tape has a better bandwidth than any smaller-format analog tape, and properly handled, it could produce a picture indistinguishable from that of a live camera.