The four parts of an edited sequence are:
- Scripted action and dialog when the video has a narrative progress.
- Unscripted action and dialog when the video is a piece of journalism or a documentary.
- Titles and graphics.
- Music and sound effects.
Scripted action and dialog involves a performer reciting a written dialog off-book or committed to memory. Performing does not go smoothly, so multiple attempts or takes are made. These takes are assembled in the editing room before the performance is presented to the audience. Sometimes promptors are used, such as during an awards show such as the Oscars or Grammys. A prompter is similar to a television except
a devised script would scroll down the screen.The performer would then rehearse using the device reciting the dialog as it moves down the screen. When the show is filmed the performer recites the dialog. This prevents the performer from forgetting or omitting critical parts of the dialog.
Unscripted action and dialog are created during a documentary or journalistic interview. Involving a non-performer, information is recorded and a storyline created around the interview. Another type of unscripted dialog is the voiceover (VO), in which, an individual would comment on a series of images without being seen. Reporters and narrators use this
in order to be unobserved during a critical point of the video. B-Roll are additional shots provided when actual images cannot be used, such when the crime occurs or the building where a private celebrity party is held.
Titles and graphics are stationary fonts and type that add to the storyline. Sometimes introductory when used at the beginning of a video such as title credits or at the end of the film in ending credits, they add additional information to the images and story being presented. They can be informative such as a graph or the name of the individual being interviewed. Graphics could be additional written information regarding a product for commercials or dates of historical events.
Music and sound effects are often prepared off-camera and recorded. These need to be added at precise moments on the video. To maintain quality of the sound, WAV and AIFF compression formats are used without regard to file size. MP3s , the consumer compression format, lose the fidelity of sound because of loss of data during the compression process and the data cannot be retrieved. The loss data creates a distortion that is noticeable.