https://wiki.sarg.dev/index.php?action=history&feed=atom&title=TimecodeTimecode - Revision history2026-04-09T18:43:57ZRevision history for this page on the wikiMediaWiki 1.44.2https://wiki.sarg.dev/index.php?title=Timecode&diff=31655&oldid=previmported>Meno25: /* See also */2024-07-08T21:08:32Z<p><span class="autocomment">See also</span></p>
<p><b>New page</b></p><div>{{short description|Sequence of numeric codes generated at regular intervals by a timing synchronization system}}<br />
{{other uses}}<br />
{{no footnotes|date=July 2011}}<br />
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A '''timecode''' (alternatively, '''time code''') is a sequence of numeric codes generated at regular intervals by a [[timing synchronization]] system. Timecode is used in [[video production]], [[show control]] and other applications which require temporal coordination or logging of recording or actions.<br />
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== Video and film ==<br />
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. This [[shot-logging]] process was traditionally done by hand using pen and paper, but is now typically done using shot-logging software running on a laptop computer that is connected to the timecode generator or the camera itself.<br />
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The SMPTE family of timecodes are almost universally used in film, video and audio production, and can be encoded in many different formats, including:<br />
*[[Linear timecode]] (LTC), in a separate audio track<br />
*[[Vertical interval timecode]] (VITC), in the vertical blanking interval of a video track<br />
*[[AES-EBU embedded timecode]] used with [[digital audio]]<br />
*[[Burnt-in timecode]], in human-readable form in the video itself<br />
*[[CTL timecode]] (control track)<br />
*[[MIDI timecode]]<br />
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[[Keykode]], while not a timecode, is used to identify specific [[film frame]]s in film [[post-production]] that uses physical [[film stock]]. Keykode data is normally used in conjunction with SMPTE timecode.<br />
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[[Rewritable consumer timecode]] is a proprietary consumer video timecode system that is not frame-accurate, and is therefore not used in professional post-production.<br />
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== Other formats ==<br />
Timecodes for purposes other than video and audio production include:<br />
* [[IRIG timecode]] is used for military, government and commercial purposes.<br />
* [[DTS (sound system)#Theatrical use|DTS timecode]] is used to synchronise the optical DTS timecode track from a projector to the CD-based DTS audio tracks.<br />
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== Timecode generators ==<br />
[[File:New voice over booth for NPO.jpg|thumb|Timecode reader/generator with character inserter]]<br />
{{Expand section|date=June 2019}}<br />
Depending on the environment, timecode generators can take various forms.<br />
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==See also==<br />
* [[Binary-coded decimal]]<br />
* [[Clock synchronization]]<br />
* [[Global Positioning System]]<br />
* [[Jam sync]]<br />
* [[Network Time Protocol]]<br />
* [[Time formatting and storage bugs]]<br />
* [[Time signal]]<br />
* [[Radio clock#timecode radio stations|Timecode radio stations]]<br />
* [[Timestamp]], denoting the date/time in [[data logging]]<br />
* [[Trusted timestamping]], part of a digital signature<br />
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==References==<br />
* {{cite book |title=Timecode: A user's guide, second edition |author=John Ratcliff |publisher=Focal Press |edition=Third |year=1999 |isbn=978-0-240-51539-7}}<br />
* {{cite book |title=A Technical Introduction to Digital Video |author=Charles Poynton |author-link=Charles Poynton|ISBN=0-471-12253-X |year=1996 |publisher=John Wiley & Sons}}<br />
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[[Category:Encodings]]<br />
[[Category:Timecodes|*]]<br />
[[Category:Film and video technology]]</div>imported>Meno25