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What is drop frame coding?

April 26, 2017coding drop frame

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What is drop frame coding?

1 Answer

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10 Posted

Drop frame timecode is used so that the time code on your video matches actual time (time code of 4 minutes is really 4 minutes into the tape). The reason for this adjustment is that NTSC is NOT 30 frames per second, but 29.97 frames per second. The time codes for frames 00 and 01 are skipped at every one minute mark, except for every ten minute mark (including the start at 00;00;00). If this adjustment is not used, the time code will be off by a few seconds after only a few minutes. This can cause very bad problems with audio sync. For more details, check out http://www.jeremymoore.