Just like syncing subtitles, VLC media player is also great for fixing audio that is not synced. Sometimes, while playing video files, you hear the sound before the actual time or you hear spoken words only after the lips move. This means that the audio is not in sync and you will have to fix the audio delay. This removes the fun of watching a movie if it happens continuously.
Sometimes, the sound syncing is automatically fixed after a few moments. There are times it never gets fixed on its own. Sounds are generally off by only a few milliseconds but at times, they are even off by a few seconds or so. It can be irritating. This tutorial teaches you how you will be able to fix such sound syncing problems using VLC Media Player. The steps are easy and quick. Once you learn the shortcut keys, you will be fixing audio syncing errors like a pro.
To sync audio in VLC Media Player:
- Make sure that your video is playing and the audio syncing is incorrect.
- If your audio requires to be slowed down then hit the ‘K‘ hotkey from your keyboard. For the opposite of this hit the ‘J‘ hotkey on your keyboard. For Mac, the shortcut keys are ‘G‘ and ‘F‘. Confirmation is displayed on the top-right area of the player’s screen. It fades away quickly.
- Pressing the hotkeys once will speed up or slow down the audio by 50 milliseconds. If you continue to press it, the number of milliseconds will continuously be incremented.
- Speed up or slow down the sound timing of the video until you reach the desired state. Make sure that the video is playing and listen to the sound carefully and match it with the video to do this.
The same audio synchronization results without using the hotkeys. It is done using the menu options.
- Go to Tools > Effect and Filters [CTRL + E]
- Click on the Synchronization tab
- Under Audio/Video enter a numerical value
- Press Close once done
Note: A positive value there like 5.000 s will delay the audio. A negative value like -10.000 s will hasten the audio.
In VLC for Android
For the complete details: Syncing Sound by Adjusting Audio Delay in VLC for Android
If you are a user of Android’s VLC player then, you will have to access the on-screen interface to fix the Audio delay. Here are the steps:
- Tap on the screen when a video is open
- Press on the second button from the interface controls
- Tap on the Audio Delay
- The plus and minus button will help us to synchronize the audio
To save or unsave the audio delay for this particular video while watching it the next time, you’d have to go to tap on ☰ Menu > Settings. Then click on Video under Extra Settings. There check or uncheck the Save audio delay option. It works for individual videos.
View Comments (47)
I don't think VLC can save that synced file. I used VLC to determine the time delay needed (1000msec) and then used the MKVToolNix GUI program (a great all-purpose MKV re-muxing tool!) to add in the time delay for both audio and subtitle files. The part of the program that does that is in the right hand window box. Click and highlight the audio or subtitle file you want to sync, then scroll down the right hand window box to Timestamps and default duration. Fill in the Delay (in msec) box for each sub-file of audio or subtitle you want to delay/advance and then click on the Start Multiplexing button on the bottom of the main window to re-mux the files at the synced speeds
Man! You've saved my life with this comment. I've just discovered my audio is out of sync in one of the project to be completed today. I moved it in no time with your solution. Thanks again!
Alot of people asked this already but none of them get a clear Answer. How can this be done, and saved? I, and many other people here as well, have videos that have out of synch audio, and i need a program to fix this permanently, so that i can save these videos back onto my harddrive in a fixed state. I have been redirected to use vlc, but from my 30 minute experience with the program, vlc doesnt seem to be capable of actually fixing this issue. All it does is alter playback, not the file itself. Is it possible to save those changes or not?
I don't think VLC can save the synced file.
Use MKVToolNix GUI. Input the MKV file. Click on the audio or subtitle file that you want to sync, then in the right hand window box, scroll down to Timestamps and default duration and input the Delay (in ms). Then click the Start multiplexing button at the bottom of the main window.
I don't think VLC can save the synced file.
Use MKVToolNix GUI. Input the MKV file. Click on the audio or subtitle file that you want to sync, then in the right hand window box, scroll down to Timestamps and default duration and input the Delay (in ms). Then click the Start multiplexing button at the bottom of the main window.
I don't think VLC can save that synced file. I used VLC to determine the time delay needed (1000msec) and then used the MKVToolNix GUI program (a great all-purpose MKV re-muxing tool!) to add in the time delay for both audio and subtitle files. The part of the program that does that is in the right hand window box. Click and highlight the audio or subtitle file you want to sync, then scroll down the right hand window box to Timestamps and default duration. Fill in the Delay (in msec) box for each sub-file of audio or subtitle you want to delay/advance and then click on the Start Multiplexing button on the bottom of the main window to re-mux the files at the synced speeds
It works!
When I sync the sound usually -250ms on my 4K Firestick it shuts down after 20 mins. If I don’t alter the sound it will run ok but obviously well out of sync. I’ve deleted and reinstalled VLC player but it’s still giving the same problems. Any ideas??? Thanks
1) What do you mean by "shutdown", this isn't WINDOWS, so that term doesn't literally apply. Thus, do you mean "the app crashes"? Or "The Fire Stick spontaneously reboots" or "VLC shows an error and stops playing the file, but other files work OK"? Set yourself up to win, not fail, by using accurate language to describe a problem (or in general, it is a modern disease related to real-time communication technology making accuracy of and efficiency in general of communication less of a priority and de-skilling people, IMHO).
How to save it!
This tutorial is just for playback.
Is there a tutorial that actually includes save. It is a real pain having to do this every time
Fantastic. Worked perfectly on some old videos I had. Love VLC!!!
I use VLC to determine the sync value required, then AVIDemux to re-sync the file permanently - works like a charm!
I always get sync problem with VLC. I correct them and after a short time have to uncorrect then correct. It i an ongoing battle. I can take the same video and play it on my LG TV with no sync problem at all, this tells me that the problem is with VLC and not the medium.
Haha thanks a lot, I could watch the end of my film without having to go to the video store to reap it again !
I am using vlc in my android device.I tried the audio delay option but it's not working...the audio track remained same even after i pressed the - button....what can i do to fix this problem???
Try it with other videos or reinstall the application.