Monday, 20 May 2019

Difference between linear and nonlinear editing


Linear Editing is a process of selecting, arranging and modifying images and sound in a pre-determined, ordered sequence – from start to finish. Linear editing is most commonly used when working with videotape. Unlike film, videotape cannot be physically cut into pieces to be spliced together to create a new order. Instead, the editor must dub or record each desired video clip onto a master tape.For example, let’s say an editor has three source tapes; A, B and C and he decided that he would use tape C first, B second and A third. He would then start by cutting up tape C to the beginning of the clip he wants to use, then as he plays tape C, it would also be simultaneously recording the clip onto a master tape. When the desired clip from tape C is done, the recording is stopped. Then the whole process is repeated with tapes B and A. 

 There was alternative starting to emerge - almost a rejection of the strict time code rules of linear editing and going back to the freedom of cutting actual film - a system that would eventually be called Non-Linear editing. Non linear editing was nondestructive. You could assemble a cut in whatever order you wanted and go back and make changes without disturbing the rest of the assembly. There was no generation loss that you had with linear editing that required you to copy from one tape to another. It was a much more natural way of editing. 

Nonlinear editing differs from linear editing in several ways. 

First, video from the sources is recorded to the editing computer’s hard drive or RAID array prior to the edit session. 

Transitions can be placed between the segments. Also, most of the video editing programs have some sort of CG or character generator feature built in for lower-thirds or titles. 

The work-in-progress can be viewed at any time during the edit in real time. Once the edit is complete, it is finally laid to video. 

Non-linear video editing removes the need to lay down video in real time. It also allows the individual doing the editing to make changes at any point without affecting the rest of the edit.

Happy Learning!
Anamika Gupta
IAAN 

No comments:

Post a Comment