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Abbreviation for synchronization

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Techniques and technologies for synchronizing multiple audio and video streams

At the beginning of the shooting day, all recordists (cameras, audio) will sync their clocks. This is done either to SMPTE 01:00:00:00, or to the time of the day. … The sync is done manually, by finding the video frame at which the clapper jaws were hitting each other; on the waveform display, you can see a transient from the sound the clapper makes. …
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