File-based Insert Editing & ‘Live to File’

Cinedeck Tech


Cinedeck’s File-Based Insert Editing & Live-to-File recording capabilities make for the ultimate “Virtual Tape” environment by bringing back two advantages, lost when video tape was removed from the production equation. Simply put, Cinedecks allow you to place or replace video or audio in pre-existing files and you can build a show in pieces, as would be done in assemble editing. All of this is done with flat compatible files.

Although nothing short of a miracle, electronic non-linear editing has a few significant limitations. If a change to a program is required, even just a simple shot change, it is necessary to go back to the timeline, make the changes and then, re-export the complete program. That export process can be excruciating, especially for long form programming. And then, the resulting file needs to be run through quality control again, which if nothing else, means someone watching the program from start to finish, wasting time, money and in some cases, preventing shows from being delivered on time.

As a work-around, some post-production facilities currently export edited shows to tape and use tape-based insert edits for changes. Those tapes can also provide a pathway to delivering file types not directly supported by their particular finishing systems. Another limitation is that many programs, especially daily, ‘current events’ broadcast productions are recorded live though not actually aired live. In theory, these recordings could be directly used however, in most cases some changes need to occur. This means an elaborate and inefficient non-linear import, edit and export process that is time consuming, especially when compared to delivering a tape directly after a recording is complete.

As a last clarification… Unlike the process of editing the metadata of an AS-11 file to point to content newly added into the package, when an insert is done using the Cinedeck Insert Edit, you are actually writing into and replacing parts of the original flat video and audio essence which means several things;

  • The process is not limited to AS-11 files. The Cinedeck system can make changes in many file types, ProRes, DNxHD, AVC-I, etc., and they can be wrapped as MOV, MXF OpAtom, Op1A or the more specific DPP Op1A.
  • Because changes are being written into the flat audio and video essence, file compatibility is maintained. The resulting file after the insert is the same file; it’s just that some audio or video frames have been replaced.

With all of these editing capabilities, (like on tape) when you get to the end you are done, there is no export, render, consolidate, etc… This is absolutely a game changing solution for the real problem of late fixes and the many programs that need to be produced “Live-to-File”.