Allows you to change the subtitle file current frame rate, providing important options such as Keep time, Keep frames count and Keep timecode parts.
It often happens that the proxy file you are using for subtitling has different frame rate from the original broadcast file, or that you are translating the subtitle for the different frame rate.
This unique feature provides best possible frame rate change, by keeping the original duration, exact number of the frames in the video file,
thus making the converted file to perfectly fit and be in sync as desired.
New Frame Rate
The resulting framerate to which to convert timecodes.
Use this option when your subtitles are generally in sync with the media but you need to use another framerate. Time duration will remain the same but the timecodes will be in the new framerate format.
Use this option when your subtitles are not in sync with the media, but the timecodes originated from a frames-only based timecode source with a mismatched framerate.
Use this option when your timecodes originated from a source that provides timecodes in parts (hours, minutes, seconds and frames) but were interpreted with a wring framerate, i.e. after conversion they will show the same parts - for example 01:02:03:23 in 29.97 will show again 01:02:03:23 in 23.976 but in time they have around 4 seconds seconds difference. Your subtitles could be almost in sync or not in sync after longer period of time depending of actual framerates, i.e. if converting from 25 to 24 the difference of timing on some cues is maximum 1/25 (or one frame in 25 fps) of a second.
