Editing Closed captioning (section)

=== Non-linear video editing systems and closed captioning ===
In 2010, [[Sony Vegas Pro|Vegas Pro]], the professional non-linear editor, was updated to support importing, editing, and delivering [[CEA-608]] closed captions.<ref>[[Sony Creative Software]] (April 2010): the Vegas Pro 9.0d update.</ref> Vegas Pro 10, released on October 11, 2010, added several enhancements to the closed captioning support. TV-like CEA-608 closed captioning can now be displayed as an overlay when played back in the Preview and Trimmer windows, making it easy to check placement, edits, and timing of CC information. CEA708 style Closed Captioning is automatically created when the CEA-608 data is created. Line 21 closed captioning is now supported, as well as HD-SDI closed captioning capture and print from AJA and [[Blackmagic Design]] cards. Line 21 support provides a workflow for existing legacy media. Other improvements include increased support for multiple closed captioning file types, as well as the ability to export closed caption data for DVD Architect, YouTube, RealPlayer, QuickTime, and Windows Media Player.

In mid-2009, [[Apple Inc.|Apple]] released [[Final Cut Pro]] version 7 and began support for inserting closed caption data into SD and HD tape masters via [[FireWire]] and compatible video capture cards.<ref>{{Cite web|url=https://www.apple.com/final-cut-pro/|archive-url=https://web.archive.org/web/20110608124345/http://www.apple.com/finalcutstudio/whats-new.html|url-status=dead|title=Final Cut Pro X|archive-date=June 8, 2011|website=Apple}}</ref> Up until this time, it was not possible for video editors to insert caption data with both [[EIA-608|CEA-608]] and [[CEA-708]] to their tape masters. The typical workflow included first printing the SD or HD video to a tape and sending it to a professional closed caption service company that had a stand-alone closed caption hardware encoder.

This new closed captioning workflow known as [[Ecaptioning|e-Captioning]] involves making a proxy video from the non-linear system to import into a third-party non-linear closed captioning software. Once the closed captioning software project is completed, it must export a closed caption file compatible with the [[non-linear editing system]]. In the case of Final Cut Pro 7, three different file formats can be accepted: a .SCC file (Scenarist Closed Caption file) for Standard Definition video, a [[QuickTime]] 608 closed caption track (a special 608 coded track in the .mov file wrapper) for standard-definition video, and finally a QuickTime 708 closed caption track (a special 708 coded track in the .mov file wrapper) for high-definition video output.

Alternatively, [[Matrox]] video systems devised another mechanism for inserting closed caption data by allowing the video editor to include CEA-608 and CEA-708 in a discrete audio channel on the video editing timeline. This allows real-time preview of the captions while editing and is compatible with Final Cut Pro 6 and 7.<ref>{{Cite web|url=http://www.cpcweb.com/mxo2/|archive-url=https://web.archive.org/web/20100416034901/http://cpcweb.com/mxo2/|url-status=dead|title=CPC Closed Captioning & Subtitling Software for Matrox MXO2<!-- Bot generated title -->|archive-date=April 16, 2010}}</ref>

Other non-linear editing systems indirectly support closed captioning only in Standard Definition Line 21. Video files on the editing timeline must be composited with a Line 21 VBI graphic layer known in the industry as a "blackmovie" with closed caption data.<ref>{{Cite web|url=http://www.cpcweb.com/nle/|archive-url=https://web.archive.org/web/20100316161102/http://www.cpcweb.com/nle/|url-status=dead|title=CPC Closed Captioning & Subtitling Software for Non-linear Editors (NLEs)<!-- Bot generated title -->|archive-date=March 16, 2010}}</ref> Alternately, video editors working with the DV25 and DV50 FireWire workflows must encode their DV .avi or .mov file with VAUX data which includes CEA-608 closed caption data.