In broadcasting applications, video and audio data are first captured to hard disk-based systems or other digital storage devices. The data are then imported into servers employing any necessary transcoding, digitizing or transfer). Once imported, the source material can be edited on a computer using any of a wide range of video editing software. The end product of the offline non-linear editing process is a frame-accurate edit decision list (EDL) which can be taken, together with the source tapes, to an online quality tape or film editing suite. The EDL is then read into an edit controller and used to create a replica of the offline edit by playing portions of the source tapes back at full quality and recording them to a master as per the exact edit points of the EDL.Įditing software records the editor's decisions in an EDL that is exportable to other editing tools. #Davinci resolve studio lower third media offline full# Many generations and variations of the EDL can exist without storing many different copies, allowing for very flexible editing. It also makes it easy to change cuts and undo previous decisions simply by editing the EDL (without having to have the actual film data duplicated). Generation loss is also controlled, due to not having to repeatedly re-encode the data when different effects are applied.
Generation loss can still occur in digital video or audio when using lossy video or audio compression algorithms as these introduce artifacts into the source material with each encoding or reencoding. Lossy compression algorithms (codecs) such as Apple ProRes, Advanced Video Coding and mp3 are very widely used as they allow for dramatic reductions on file size while often being indistinguishable from the uncompressed or losslessly compressed original.Ĭompared to the linear method of tape-to-tape editing, non-linear editing offers the flexibility of film editing, with random access and easy project organization.
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