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SMPTE timecode on a clapperboard. SMPTE timecode (/ ˈ s ɪ m p t iː / or / ˈ s ɪ m t iː /) is a set of cooperating standards to label individual frames of video or film with a timecode. The system is defined by the Society of Motion Picture and Television Engineers in the SMPTE 12M specification. SMPTE revised the standard in 2008, turning ...
In video production and filmmaking, SMPTE timecode is used extensively for synchronization, and for logging and identifying material in recorded media.During filmmaking or video production shoot, the camera assistant will typically log the start and end timecodes of shots, and the data generated will be sent on to the editorial department for use in referencing those shots.
A special bit in the linear timecode frame, the biphase mark correction bit, ensures that there are an even number of AC transitions in each timecode frame. The sound of linear timecode is a jarring and distinctive noise and has been used as a sound-effects shorthand to imply telemetry or computers .
Vertical Interval Timecode (VITC, pronounced "vitsee") is a form of SMPTE timecode encoded on one scan line in a video signal. These lines are typically inserted into the vertical blanking interval of the video signal.
The Society of Motion Picture and Television Engineers (SMPTE) (/ ˈ s ɪ m p t iː /, rarely / ˈ s ʌ m p t iː /), founded in 1916 as the Society of Motion Picture Engineers or SMPE, [1] is a global professional association of engineers, technologists, and executives working in the media and entertainment industry.
A digislate is a clapperboard with an inbuilt electronic box displaying SMPTE time codes. The timecode displayed on the clapperboard will have been jam synced with the internal clock of the camera, so that in theory it should be easy for the film editor to pull the timecode metadata from the video file and sound clip and synchronize them ...
Control track longitudinal timecode, or CTL timecode, developed by JVC in the early 1990s, is a unique technique for embedding, or striping, reference SMPTE timecode onto a videotape. Similar to the way VITC timecode is embedded in the vertical interval area of a video signal, CTL timecode embeds SMPTE timecode in the control track area of ...
With the introduction of SMPTE timecode in the early 1970s, engineers began to use computers to perfectly synchronize separate audio and video playback, or multiple audio tape machines. In this system, one track of each machine carried the timecode signal, while the remaining tracks were available for sound recording.