Source propagation
In many instances, the source text might change after translations have been made.
CaptionHub maintains an active relationship between source text and its translations. When changes are made to the source text, CaptionHub automatically updates the source text in the translations while preserving the 1:1 relationship between source and target captions. This process is called source propagation.
Only a limited number of operations are possible. For example, if you wish to re-transcribe, the connection will be broken — and CaptionHub will not allow it if translations already exist. However, minor operations are possible. These include:
- Text editing
- Timings changes
- Caption insertion
- Caption deletion
- Caption splitting
Implicit source propagation
When the source text changes, CaptionHub provides a source update view in the editor to help you clearly identify what has changed.
In this view:
- Added content is highlighted in green.
- Deleted content appears in red and is crossed out.
This feature is designed to give translators and reviewers clear visibility of source text updates, making it easier to understand what has been modified without leaving the editor.
Notes and limitations
- Caption deletion in the source will result in caption deletion across all target languages. CaptionHub warns you before this happens and takes a snapshot of the target translations. Use this feature sparingly.
- If translated captions have been split or merged, source propagation may not work perfectly.
- Making timing changes in the source after translations have been made can cause overlaps if timing changes have also been made in the translations.