35
submitted 1 day ago* (last edited 1 day ago) by enchantedgoldapple@sopuli.xyz to c/nostupidquestions@lemmy.world

Some online video players give you the option to add or subtract delay e.g. by ±0.5s to subtitles to manually sync them to the video currently playing. However I become functionally dyslexic when it comes to actually figuring out how much delay has to be added. I end up randomly adding or subtracting delay and make it work through trial and error.

Is there some rule of thumb I could follow instead to systematically sync subtitles?

you are viewing a single comment's thread
view the rest of the comments
[-] Kolanaki@pawb.social 4 points 1 day ago* (last edited 1 day ago)

Trial and error, basically. Change the delay, wait a second and then see if it makes it better or worse (at least for VLC there is a delay in the setting actually changing the sync in my experience so you need to give it a second to see the difference). Repeat until it's perfect.

It also helps to do this in a dialogue heavy scene so you can match the audio to mouth movement.

[-] enchantedgoldapple@sopuli.xyz 2 points 1 day ago* (last edited 1 day ago)

~~There must be a better way to do this though. I waste too much time tinkering with the syncing at times.~~

I realised what I'm asking for is essentially a modified version of 'trial and error'. I should clarify that I'm looking for a technique I could follow to instead of clicking buttons and modifying values by pure randomness and hoping the subtitles sync.

[-] NeatNit@discuss.tchncs.de 6 points 1 day ago

So you just want a better system than "completely at random". Fair enough. Here's what I'd do:

  1. After the first line is uttered, see if the subtitles are late or early. Pause.
  2. Adjust the delay, let's say -1.0 second (or more if the difference between them felt really long).
  3. Skip back to before the line was heard, and play. Is the gap better or worse? If it's worse, then you need to change the delay in the other direction (+1.0 instead of -1.0). If it's better, the direction you used was good.
  4. Repeat step 3 until you get that one line synced perfectly.
  5. Enjoy the rest of the movie/episode.

Disclaimer: I've never had this problem (that I remember), subtitles have always been either synced or completely out of my control. I don't use 'alternative means' much.

[-] Ghostalmedia@lemmy.world 4 points 1 day ago

Every video player has a slightly different codebase. I imagine all of these are going to be a hair different when it comes to timing.

this post was submitted on 22 Sep 2026
35 points (100.0% liked)

No Stupid Questions

49893 readers
637 users here now

No such thing. Ask away!

!nostupidquestions is a community dedicated to being helpful and answering each others' questions on various topics.

The rules for posting and commenting, besides the rules defined here for lemmy.world, are as follows:

Rules (interactive)


Rule 1- All posts must be legitimate questions. All post titles must include a question.

All posts must be legitimate questions, and all post titles must include a question. Questions that are joke or trolling questions, memes, song lyrics as title, etc. are not allowed here. See Rule 6 for all exceptions.



Rule 2- Your question subject cannot be illegal or NSFW material.

Your question subject cannot be illegal or NSFW material. You will be warned first, banned second.



Rule 3- Do not seek mental, medical and professional help here.

Do not seek mental, medical and professional help here. Breaking this rule will not get you or your post removed, but it will put you at risk, and possibly in danger.



Rule 4- No self promotion or upvote-farming of any kind.

That's it.



Rule 5- No baiting or sealioning or promoting an agenda.

Questions which, instead of being of an innocuous nature, are specifically intended (based on reports and in the opinion of our crack moderation team) to bait users into ideological wars on charged political topics will be removed and the authors warned - or banned - depending on severity.



Rule 6- Regarding META posts and joke questions.

Provided it is about the community itself, you may post non-question posts using the [META] tag on your post title.

On fridays, you are allowed to post meme and troll questions, on the condition that it's in text format only, and conforms with our other rules. These posts MUST include the [NSQ Friday] tag in their title.

If you post a serious question on friday and are looking only for legitimate answers, then please include the [Serious] tag on your post. Irrelevant replies will then be removed by moderators.



Rule 7- You can't intentionally annoy, mock, or harass other members.

If you intentionally annoy, mock, harass, or discriminate against any individual member, you will be removed.

Likewise, if you are a member, sympathiser or a resemblant of a movement that is known to largely hate, mock, discriminate against, and/or want to take lives of a group of people, and you were provably vocal about your hate, then you will be banned on sight.



Rule 8- All comments should try to stay relevant to their parent content.



Rule 9- Reposts from other platforms are not allowed.

Let everyone have their own content.



Rule 10- Majority of bots aren't allowed to participate here. This includes using AI responses and summaries.



Credits

Our breathtaking icon was bestowed upon us by @Cevilia!

The greatest banner of all time: by @TheOneWithTheHair!

founded 3 years ago
MODERATORS