CaptionSync's Digital NLE Caption service is a method used by video producers to encode captions for SD video broadcast on NTSC television. This service provides you with an MOV file that contains only the captions and a black background, which you can pull directly into your non-linear editor to produce a master without any hardware encoding or generation loss when you print to tape. Note that this process is for SD video, and it does NOT currently work with FireWire decks or DV (720x480). A full D1 (720x486) medium such as Beta SP, digi-Beta, or DVCPro is needed.
Because of the hardware constraints and a shift to file-based post-production, many producers who distribute for broadcast now use an alternative workflow. The alternative involves getting .SCC or DFXP caption files, and then using a software or hardware encoder to encode the captions for broadcast, as described in this article about Apple Compressor, this article about Harmonic Promedia Carbon, and this article about Final Cut Pro 7.
If you choose to use Digital NLE Captions the workflow is compatible with many NLE systems such Avid, Final Cut Pro, and Premiere, with the following constraints:
- The content needs to be SD 720×486. You can certainly keep HD masters, but you'll need to down convert a copy in order to use our Digital NLE Captions.
- You need to be able to print-to-tape out via hardware such as AJA Kona, Blackmagic DeckLink, or Avid Adrenaline to composite, S-video, or SDI. Writing out via Firewire will not work.
- This needs to go out to a deck that supports a full 720×486, such as Beta-SP, Digi-Beta, DVC Pro 50, etc. – not a DV 720×480.
If Digital NLE Captions are going to fit the bill for you, please do the one-time configuration before your first submission. Then follow the instructions for submitting your Digital NLE Captions submission.