| Revision as of 18:22, 6 July 2007 editThomprod (talk | contribs)Extended confirmed users, IP block exemptions3,536 edits elaborated on history of video editing techniques~~~~← Previous edit | Revision as of 18:38, 6 July 2007 edit undoThomprod (talk | contribs)Extended confirmed users, IP block exemptions3,536 editsm added link to other articlesNext edit → | ||
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| When video tape was first developed in 1956, the only way to edit was to physically cut the tape with a razor blade and splice segments together. While not actually "destroying" the tape, any original footage that was recorded before or after the chosen splice points was usually discarded in the editing process. | When video tape was first developed in 1956, the only way to edit was to physically cut the tape with a razor blade and splice segments together. While not actually "destroying" the tape, any original footage that was recorded before or after the chosen splice points was usually discarded in the editing process. | ||
| In 1963 with the introduction of the Ampex Editec, video tape could be edited electronically by selectively copying (or dubbing) the original footage to another tape called a "master". The original recordings are not destroyed or altered in this process. | In 1963 with the introduction of the Ampex Editec, video tape could be edited electronically with a process known as ] by selectively copying (or dubbing) the original footage to another tape called a "master". The original recordings are not destroyed or altered in this process. | ||
| Non-linear editing, originally developed in 1971 by CMX and now the most prevalent form of editing video and film, is also non-destructive: Un-edited original footage is digitized into electronic files stored digitally on a computerized disk-based system. The edited end-product (often referred to as a "sequence" or "playlist") is simply a series of digital files played back out of the editing computer. In this case, neither the original footage nor the digitized source files are destroyed in the editing process. | Non-linear editing, originally developed in 1971 by CMX and now the most prevalent form of editing video and film, is also non-destructive: Un-edited original footage is digitized into electronic files stored digitally on a computerized disk-based system. The edited end-product (often referred to as a "sequence" or "playlist") is simply a series of digital files played back out of the editing computer. In this case, neither the original footage nor the digitized source files are destroyed in the editing process. | ||
Revision as of 18:38, 6 July 2007
Non-destructive editing is a form of editing signals where the original content is not modified in the course of editing - instead the edits themselves are edited.
A pointer-based playlist — effectively an edit decision list — is used to keep track of edits. Each time the edited audio or video is played back or accessed, it is reconstructed from the original source and the EDL. Although this process is more computationally intensive than rendering each edit, changing the edits themselves can be almost instantaneous, and it prevents further generation loss as the audio or video is edited.
When video tape was first developed in 1956, the only way to edit was to physically cut the tape with a razor blade and splice segments together. While not actually "destroying" the tape, any original footage that was recorded before or after the chosen splice points was usually discarded in the editing process.
In 1963 with the introduction of the Ampex Editec, video tape could be edited electronically with a process known as Linear video editing by selectively copying (or dubbing) the original footage to another tape called a "master". The original recordings are not destroyed or altered in this process.
Non-linear editing, originally developed in 1971 by CMX and now the most prevalent form of editing video and film, is also non-destructive: Un-edited original footage is digitized into electronic files stored digitally on a computerized disk-based system. The edited end-product (often referred to as a "sequence" or "playlist") is simply a series of digital files played back out of the editing computer. In this case, neither the original footage nor the digitized source files are destroyed in the editing process.
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