This can be useful when multiple characters on screen are speaking at the same time, and you would like to create separate captions for each voice. Turn Allowed on to allow captions to have overlapping time ranges. Two captions are said to be overlapping when the time period represented by their in/out timecodes intersects. By default the Allowed button is off because many popular formats do not allow captions to appear simultaneously on screen. The Overlap option allows captions to have overlapping time ranges, so that one or more captions may appear simultaneously on screen.Its usefulness should be clear during export operations, since it allows you to shift all captions forward or backward in time without requiring you to manually adjust every timecode. This value is imported from iTunes Timed Text files, and few other file formats have a native concept of a global time offset. In the same scenario, a caption that is set to start at 1:12 (1 second, 12 frames) will in fact start at 2:12:12. For example, a start time of 2:00:00 means that all captions are considered relative to the 2 minute mark on the timeline. The Start timecode defines a global offset that applies to all captions. The export window gives you a chance to enable drop frame mode in its own UI, as a single-shot option that only affects the exported captions. You are not required to turn on drop-frame mode simply because you are expected to export captions in that standard. This is due to the nonintuitive and peculiar rules behind the drop-frame standard. Enabling or disabling drop frame mode can cause captions to shift forward or backward by small amounts, when timecodes are edited.Any timecodes you enter are similarly expected to follow the rules defined by the standard. Timecodes are displayed according to the rules of this standard. ![]() Please note some important side effects of turning on drop frame mode: The Drop frame option lets you switch to and from the SMPTE drop-frame mode for Broadcast NTSC frame rates: 29.97fps and 59.94fps.You can also choose one frame rate for editing and an entirely different one for exporting. Changes to the frame rate are non-destructive and do not cause any retiming problems. Change the frame rate to best match the project and data you are working with. It also affects the rules for altering existing timecodes or entering new ones. The Frame rate option affects how timecodes are displayed.The end result is to have a single caption that is displayed on screen for the same duration as the previous two captions: The out timecode will be the same as the second caption being merged. The in timecode for the merged caption will be the same as the in time for the first caption. Text from both captions is merged on multiple lines. Clicking this button causes the two captions to be merged into a single caption. The Join button is available when exactly two captions are selected.For example, you can define what happens after editing the in or out timecodes of a caption, or define a time range when searching for captions by timecode. The ⚙ button lets you display global preferences that let you customize certain behaviors of the user interface.The button is not available when the list is empty or if no captions are currently selected. The - button deletes all selected captions.When no captions are selected, the new caption is inserted at the end of the list, after all existing captions for the current language. If a caption is currently selected, a new caption is created below it. ![]()
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