I just did this for a CBC production about a month ago. They informed me after offline, and 3/4 the way through online that they wanted all segments to start at a full second. The amount of space between segments was irrelevant, as long as it was at their minimum of 10 secs. My original workflow was to output to tape, have the deck convert to 59.94 into my captioning box. To add to the confusion, i had sound working at 23.98 based on a strict 10 second space between segments, as well, i was about to send the timing to captioning for them to do their thing. Our caption process requires it to be done in 1 pass, out of FinalCut…so he needed a version that matched the final CBC timing, not a version that the sound guys (and I ) were using.
I was doing online on an Avid DS, so my workflow is probably different than yours, but basically.
I exported each segment out as individual items. Each started at the first frame of the segment, and ended after the 10 second hole leading into the next segment.
I brought those back into DS as individual pieces, and did a frame conversion in DS as i put them to my timeline. Butting all segments together gave me a normal lenght 59.94 show, with 10 sec. blacks.
I then spaced the segments out enough to match the CBC spec of hitting even seconds for the start of each segment. I put a timecode window on the sequence and output a movie for the captioner to use as reference.
When sound came back with a final mix i synced up segment 1 and razored it where my video ended. Slid segment 2 to line up with the new start time of my video. Continued this process for all segments, and output to a 59.94 df tape. Everything still syncs up. Captured that into Final cut, added the caption file, and output my final broadcast captioned master…everything still synced up…both captions and audio.
When back to my original 23.98 timeline, put the layback on it at the original timing, output to tape, and had my 23.98 universal master.
Pain in the butt, but everything worked fine.
Glenn