Multipoint Linear Resynchronization

This is advanced function that allows to synchronize subtitles with variable time errors (that were created e.g. for a low quality camera version) that are impossible to synchronize using only the time shift and speed change (Move/Scale). The time error is distributed linearly between the synchronization points.

Example:

• Black solid line denotes original times of the subtitles
• Red solid line denotes wanted times of the subtitles
• Green and purple solid lines denote the options for starting and ending subtitles
• Black dashed lines denote the resynchronization points
• Red dashed lines denote the differences between original subtitle times and wanted times

How to use this function

1. Find at least 2 subtitles in the movie that start at bad times and define them as synchronization points (the more points, the better precision, points should be distributed through the whole movie)
2. Find the correct start times by using the bookmark edits and listening to the movie
3. Set the options for the outer subtitles
4. Save the definition for later use if you make a mistake
5. Execute the function with the Resynchronize button

The columns in the grid:

• No: number of the synchronization point
• Sub. No.: number of the subtitle that defines this synchronization point
• Subtitle text: preview of the subtitle text (same as in the subtitle grid, taken from the subtitle determined by Sub. No.)
• Old start: original start time of the subtitle
• New start: wanted new start of the subtitle - this is a bookmark edit with the same possibilities as the bookmarks in Player
• Difference: calculated difference between the original and new start

The buttons in the toolbar are:

• Resynchronize: Execute the resynchronization
• Add: add a synchronization point (with the subtitle selected in the subtitle grid)
• Remove: remove the synch. point
• Remove all: remove all the synchronization points
• Auto create: automatically create 4 to 128 synchronization points equally distributed through the movie (8 by clicking on the button, other counts selectable by the arrow button next to it)
• Load: load the definition from disk. Note: Subtitles must be loaded before the synch. points, otherwise an error is given
• Save: save the definitions to disk

If the first and last synchronization point is not at the first and last subtitle, there are options for the subtitles out of the bounds:

• Ignore: do not change the times (outer parts of the black solid line in the graph)
• Move constantly: add a constant time to all the outer subtitles (determined by the first/last synch. point; see the purple line)
• Move along line: move along a prolonged line (see the green line)
• Line to first and last: First and last subtitles are treated as synchronization points

The resynchronization is executed through clicking on the Resynchronize button in the toolbar.