Post-production refers to all the tasks associated with cutting raw footage, assembling that footage, adding music, dubbing, sound effects, and more, that occur after principal photography or recording individual program segments. It is the final stage in film and program-making where footage is cut, music, sound, and commentary are mixed, and visual effects are added. The post-production process involves a slew of professionals, including editors, sound designers, foley artists, colorists, and more. The first part of the post-production process is the traditional non-linear (analog) film editing, which has mostly been replaced by digital or video editing software that operates as a non-linear editing (NLE) system. The post-production process will differ based on the size of the production, its budget, and which sector you are working in. Once the production team is satisfied with the picture editing, the picture editing is said to be locked, and at this point, the turnover process begins, where the picture is prepared for lab and color finishing, and the sound is spotted.