LRC is a lyrics file format introduced by the program Lyrics Displayer. Lines of songs are preceded by the time when they appear in the song.
SRT is a lyrics file format generated by the SubRip software. Lines of songs are preceded by a range of time (start to end) during which the lyrics line appears on the song.
Each sequentially generated subtitle has a counter in the SRT file format. By default the counter starts from 0. You can change this starting counter by using this setting
0 00:00:17,620 --> 00:00:23,210 Baby, last night was hands down 1 00:00:23,310 --> 00:00:25,810 One of the best nights
1 00:00:17,620 --> 00:00:23,210 Baby, last night was hands down 2 00:00:23,310 --> 00:00:25,810 One of the best nights
Whether duplicate timestamps are allowed in the input LRC file
Whether brackets excluding known LRC tags are allowed in content
How long to display the last subtitle if the start and end time for it are the same