Time code

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For the film, see Timecode (film).

A time code is a sequence of numeric codes generated at regular intervals by a timing system. Time codes are used extensively for synchronization, and for logging material in recorded media.

[edit] Common time code formats

The SMPTE time code family of timecodes are almost universally used in film, video and audio production, and can be encoding in many different formats:

• Linear timecode
• Vertical interval timecode

Other related time and sequence codes:

• Burnt-in timecode
• CTL timecode
• MIDI timecode
• AES-EBU embedded timecode
• Rewritable consumer timecode
• Keykode

Time codes for purposes other than video and audio production:

• IRIG time codes Used for military, government and commercial purposes.

[edit] See also

• Global Positioning System
• Network time protocol
• Time signal
• Timestamp, part of a digital signature
• Jam sync
• Binary Coded Decimal
• Timecode aka Rob Playford, UK drum and bass DJ and founder of Moving Shadow records.

[edit] References

• Timecode: A user's guide, second edition by John Ratcliff, [Focal Press]
• A Technical Introduction to Digital Video by Charles Poynton