Lip-Sync Editing and Mixing of Nonperforated Magnetic Tape Using the New Synchrolock Tape System

Abstract

From the early years of the sound motion picture, editing and sound mixing have been accomplished by using sprocketed optical film and, later, magnetic film. Nonperforated magnetic tape has been used only for original recording, and this has then been transferred to the sprocketed medium. Now there is a good alternative: a professional system for editing and mixing magnetic tape, which for the first time permits original soundtrack to be matched frame for frame to a sprocketed work track. Using this system, the editor is freed from worrying about the original getting damaged, and he can be assured of the highest quality product at reduced cost. Because the system permits lip-sync cutting to a known footage count, one can edit music scores, sound effects, narration and even occasional dialog to the picture without having to use sprocketed film at all. It is expected that the filmmaker on a budget will now find editing and mixing equipment within his reach.