Time Code and Synchronizing Techniques
The need for synchronizing (or “sync-ing”) audio tracks was first felt in the late 1920s as talking motion pictures were developed. Film itself has always been fitted with equally spaced sprocket holes, and as such exhibited linear velocity that could be locked into a fixed shaft rotational rate. Optical sound on film was recorded on the same medium, and the two could be locked into sync indefinitely, with single-frame accuracy.
KeywordsTime Code Audio Track Editing System Musical Instrument Digital Interface Optical Sound
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