A process of sound film recording in which the sound track is recorded on discs and played in synchronization with the projection of the film…

A proprietary name for: a system for recording sound on a film negative, formerly used chiefly in making newsreels; a film made using this system…

Film. The pre-recording of a musical soundtrack which is subsequently mimed by an actor; an instance of this. Also: a playback singer.

recorded sound represented by a pattern of light and dark alongside the frames of a film.

In film, television, etc.: sound effects created to mimic ambient noises, typically using a variety of objects and practical methods; (also) the…

Originally (usually reduplicated): the repetition of ‘walla’ (or similar sounds) by actors to represent the indistinct murmuring noise of a crowd…