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A movie projector (or film projector) is an opto - mechanical device for displaying motion picture film by projecting it onto a screen. Most of the optical and mechanical elements, except for the illumination and sound devices, are present in movie cameras. Modern movie projectors are specially built video projectors (see also digital cinema).
In filmmaking, Foley[a] is the reproduction of everyday sound effects that are added to films, videos, and other media in post-production to enhance audio quality. [1] Foley is named after sound-effects artist Jack Foley. [2] Foley sounds are used to enhance the auditory experience of a movie. They can be anything from the swishing of clothing ...
Optical sound is a means of storing sound recordings on transparent film. Originally developed for military purposes, the technology first saw widespread use in the 1920s as a sound-on-film format for motion pictures. Optical sound eventually superseded all other sound film technologies until the advent of digital sound became the standard in ...
The filmstrip is a form of still image instructional media, once widely used by educators in primary and secondary schools (K–12) and for corporate presentations (e.g., sales training and new product introductions). It was largely made obsolete by the late 1980s by newer and increasingly lower-cost full-motion videocassettes and later on by DVDs.
History of film technology. The history of film technology traces the development of techniques for the recording, construction and presentation of motion pictures. When the film medium came about in the 19th century, there already was a centuries old tradition of screening moving images through shadow play and the magic lantern that were very ...
The Movietone sound system is an optical sound-on-film method of recording sound for motion pictures, ensuring synchronization between sound and picture. It achieves this by recording the sound as a variable-density optical track on the same strip of film that records the pictures. The initial version of this system was capable of a frequency ...