I don’t know what software you are using and if they are indicating the direction of error or correction, but I trust if you try it you’ll figure it out.
Put on media with properly synchronized subtitles. Change to plus five. Are the subs behind or ahead of audio? Make a note. Now you know.
Lumidaub@feddit.org 4 weeks ago
Subtitles are glorified text files, each line has a timestamp, like
This tells the player to display the line from 7 minutes, 34 seconds, 480 milliseconds until 7 minutes, 38 seconds, 80 milliseconds.
If you want the subtitles to be earlier, you’re subtracting from those times so it’s minus, if you want them to be later, you’re adding so it’s plus.