ToolBrivio: three-anchor subtitle timing worksheet Original worksheet. Example files are constructed; no media test is supplied. Final media filename/version: Subtitle filename/version: Anchor | subtitle start (seconds) | matching speech start | difference Beginning: Middle: End: Difference = subtitle start minus speech start. Positive means caption is late. Do the three differences support one fixed shift? Record uncertainty: Check for cuts, speed changes, negative times and overlaps: After repair, reopen the delivered pair and record each anchor again: Actual observed results: