Greasy Fork

Knoa, is it possible to adjust audio/video synchronization on youtube? It'd be awesome to be able to do that with one of your script))

What to adjust? (･∀･)
Some delay between video or audio...?

Exactly. Some wireless headphones are pretty annoying with a highly noticeable delay. That would be nice if you could send an audio ahead of the video.

@commensal use it and play around by yourself, and I think it is compatible tho... lol
https://chrome.google.com/webstore/detail/youtubetm-mouse-controls/odhhfodnkaidhocaaaokdofhkoiahpbn

Does it help?
https://chrome.google.com/webstore/detail/youtube-audiovideo-sync/mknmhikmjljhpccebpnplhicmcfjkgbk

@kliop - I think you missed the point. But thanks for trying anyways.
@knoa - This is awesome! Although I'd prefer userscript so I could see the code and make sure there are no yoyo in it. This will do for now, thanks a lot! But please consider writing one. I think it might be popular. Thanks again.

I'm glad to see it helps you.
And you can check the code of extensions, too. (the way varies depending on your OS or browser)

(This is just a memo for me)

The current possible solution is to duplicate the video for using visual and audio separately, like the extension linked above.

If browsers support a negative delay value for DelayNode, it will get a neat solution.
https://developer.mozilla.org/ja/docs/Web/API/DelayNode