Friday 14 November 2014

How to Fix out of Sync Video/Audio with VLC Media Player

You spend half your evening looking for some obscure episode from a TV show from your youth. You finally find it and download it to your hard drive. The next day, you are distant and jittery. You cant concentrate. Youre just too excited about that show youre going to watch when you get back from work.

The clock strikes 5 and you drive home in a rush. You slip into something more comfortable, prepare some hot chocolate and set up your show. You press play and watch the intro. Pure nostalgia is flowing through your veins. Then disaster strikes and your day is ruined: the audio and video are out of sync.

VLC Media Playerto the Rescue

If this, or something similar, has ever happened to you, you know how frustrating it is to watch an out of sync video. It is enough to drive perfectly sane people to the point of desperation.

But VLC can provide relief.

One of the only media players in existence to offer this function, and the only one to do it in a straightforward, user-friendly way, VLC can slightly adjust the audio and/or video streams by a few milliseconds.

This way, you can finally fix those old shows youve been dying to watch, but dont have the nerves of steel to sit through in their current state.

Using the Track Synchronization Menu

VLC offers two ways to fix your badly out of sync files. The first is through the synchronization menu, which you can find in the Tools menu.

The Audio/Video track synchronization shows a slider next to it which you can adjust by clicking the up and down arrows on the right. A positive value means that the audio is rendered that particular amount of milliseconds before the video.



It takes a bit of experimentation to wrap your head around using this slider, but once you do, youll find it pretty easy to work with. Dont forget that you may have to click the Refresh button on the top right of the screen to update the video to your synchronization settings.

You can do the same for out of sync subtitle files, as we have discussed on our blog in the past.

Using the Shortcuts

The second way to synchronize your files is by using the default keyboard shortcuts J and K. Pressing these letters will move the audio 50 milliseconds backward or forward, respectively. This is usually easier to fix your files on the go.

If you dont like these shortcuts, you can of course change them in the Hotkey menu.

One Small Shortcoming

The synchronization options of VLC can really save you in a time of need, but there is one small problem: you cant save it.

So, if you resynchronize a video and then close it, youll have to sync it again when you want to watch it again. VLC might offer an option to save your sync preferences in its next version though, look forward to it!

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